Research interests
Overview of research interests
My research interests encompass areas such as manufacturing processes, condition monitoring, optimization techniques, and mechanical design.
One notable area of my research focuses on the detection and analysis of punch wear in stamping processes using acoustic emission. This work contributes to the enhancement of manufacturing efficiency and product quality by providing insights into the wear mechanisms of stamping tools.
Additionally, I have conducted extensive studies on the performance and optimization of stamping processes. Through comprehensive reviews and experimentation, I have explored factors influencing process efficiency, material thinning, and parameter optimization, contributing valuable insights to the field.
Another significant aspect of my research involves the design and analysis of mechanical components, such as roller chain links, nozzle holder assemblies, and shafts subjected to torsional loading. These studies utilize finite element analysis (FEA) and experimental stress analysis techniques to assess component performance and optimize design parameters for improved functionality and durability.
Furthermore, I have contributed to the advancement of manufacturing techniques through research on injection molding and milling processes. My work on parameter optimization using methods like Taguchi analysis and mould flow analysis offers practical solutions for enhancing process efficiency and product quality.
In the realm of mechanical design, I have explored kinematic synthesis of mechanisms, such as crank-rocker mechanisms, for specific stroke and time ratios. These studies aid in the development of efficient and precise mechanical systems for various applications.
My research output, comprising numerous publications in esteemed journals and presentations at international conferences, reflects my dedication to advancing knowledge and innovation in mechanical engineering. My interdisciplinary approach and methodological rigor contribute significantly to the field, paving the way for enhanced manufacturing processes, mechanical design, and optimization techniques.
List of research papers published
Abstracts and links for full length papers
1. Prediction of burr height formation in sheet metal trimming processes using acoustic signals and an artificial neural network
Abstract: Sheet metal trimming is an important manufacturing process in various industries. In trimmed components, burr formation is a significant defect, and the burr height is a key determinant of product quality. Punch wear and punch-die clearance are the two main factors affecting burr formation. An online burr height prediction system is required to improve the productivity of the process. In this research, the human hearing system was imitated for burr height prediction during trimming. Firstly, a discrete wavelet transform with the mel-frequency cepstral coefficients was employed to extract features from an acoustic signal. Subsequently, a feed-forward back-propagation artificial neural network was trained to determine the changes in the sheet metal thickness and punch wear state and to predict the burr height using the signal features. The proposed online burr height prediction system can improve productivity by mitigating defective production, reducing inspection time, and enabling timely regrinding of components.
Keywords: sheet metal trimming; mel-frequency cepstral coefficients; ANN; artificial neural network; acoustic emission; condition monitoring.
2. Wavelet transform and mel-frequency cepstral coefficient-based feature extraction of the sheet metal trimming process to study burr formation
Abstract: The sheet metal trimming process is extensively employed to achieve the final shape of components. However, burr formation is a major quality related issue of trimmed parts, and the burr height could be utilised to assess the quality of the component. Punch wear and material thickness variation were considered significant parameters, causing deviation in the burr height. This study proposes the pragmatism of the wavelet transform (WT) coupled with mel-frequency cepstral coefficients (MFCCs) to extract acoustic signal features to examine burr formation. The MFCCs of features indicate variations in the process parameters. Furthermore, the experimental results reveal a correlation between burr formation and MFCCs. These results suggest that the WT, coupled with MFCCs, can be useful in retrieving features pointing burr formation. Thus, features of the signal could be used to monitor the burr height, and these would prevent the need for offline burr height measurement, reworking, and scrapping.
Keywords: sheet metal trimming; MFCCs; mel-frequency cepstral coefficients; acoustic emission; feature extraction; monitoring.
3. Detection of Punch Wear in Stamping Process Using Acoustic Emission
Abstract: Stamping process is widely used for the production of sheet metal com- ponents because of its high productivity and accuracy. The performance of stamping depends on the condition of punch and die. Variation in punch and die dimension has a significant influence on the product quality. The purpose of the present study is to identify the state of punch wear. In this paper, acoustic emission (AE) signals from the process utilized to identify the three different punch wear conditions. The recorded acoustic signals after filtering were processed using Hilbert–Huang Trans- form (HHT). Then, the instantaneous frequencies and amplitudes were obtained for the signal components. The Intrinsic Mode Functions (IMF) of the AE for the three punch condition were analyzed. With the increase in punch wear, the instantaneous amplitude of the signal increases while instantaneous frequency remains unaffected.
Keywords: Punching process; Acoustic emission; HHT; EMD.
4. Performance Study of Stamping Process Using Condition Monitoring: A Review
Abstract: This paper summarizes activities around the world in the field of stamping machine condition monitoring (CM) and fault diagnosis, in the form of research, development, and application of various tools and techniques. Restricting itself to CM of stamping machine, this paper initially discusses the necessity of condition monitoring, tonnage signature, acoustic signature, vibration signature, and thermal signature as health indicators. Afterward, the acoustic signal is utilized to monitor blanking operation as it is considered most cost-effective and convenient. The acoustic signal power spectral density (PSD) is used to detect variation of sheet thickness. Sheet thickness variation is one of the unavoidable faults associated with the blanking. The paper provides a comprehensive survey ofthe work done on stamp- ing process CM, expresses the importance of CM and use of CM, fault diagnosis for performance study of the stamping process.
Keywords: Stamping machine; Tonnage signature; Acoustic signature; Thermal energy signature; FFT; WT; PSD.
5. Design, Analysis and Optimization of Roller Chain link for Coal Transportation using FEA
Abstract: Chain conveyors play crucial part in industries. Chains are put into service as pulling or driving member. In Indian scenario roller chain conveyors are basically used to transport granular material. Generally the environment where these chains are used is rusty, contaminated with soil, chemicals, foreign particles etc. Due to which unexpected failure of chain link occur. Also Roller chain is subjected to tensile force as well as impact forces. Due to tensile forces there is increase in length of chain which makes the chain ineffectual. Present study deals with static structural analysis of the roller chain for particular application, selection of the suitable material to enhance corrosion resistance, weight optimization by changing certain dimensions and experimental validation of the FEA results obtained.
Keywords: Roller chain Link, Tensile force, Static Structural analysis, Corrosion resistance, FEA, Weight optimization.
6. Experimental Stress Analysis of Shaft with Torsional Loading for Steel and Composite Material
Abstract: Replacing composite structures for conventional metallic structures has many advantages because of higher specific stiffness and strength of composite materials. In the recent days, there is a huge demand for a light weight material such as fiber reinforced polymer composites seems to be a promising solution to this arising demand. These materials have gained attention due to their applications in the field of automotive, aerospace, sports goods, medicines and household appliances. Also various type of material used in the shaft for industrial application in which steel is the most common material used for the same. This steel material shaft fails due to only torsional loading. For this failure of material is avoiding by replacing steel material into the composite material. This composite material consists of carbon fiber and epoxy resin which has good strength to weight ration as compared steel material. FEA analysis are done with the help of modelling software Pro-e and analysis software Ansys 14.0. This strength of material are validated by FEA results with experimental results which is carried out by mounting strain gauges on the steel and composite shaft for the finding the value of stress. From this work we have to reduce torsional failure of shaft by analysis of analytical FEA and Experimental and results verified.
Keywords: Ansys, shaft, Torque, stress, strain, Torsional Testing Machine.
7. Design and Optimization of Nozzle Holder Assembly (NHA) to Meet BS IV Emission Norm
Abstract: This research proposal will contain design, development and analysis of Nozzle holder assembly (NHA) for various applications such as passenger cars, SUV’s, MUV’s etc. The main aim behind the design and optimization of this NHA is to sustain the high pressure, to get the reliability, high strength and quality to meet BS IV emission norms. In the Engine design, NHA considered as a main component through which power get developed and run the vehicle. The major challenge in today’s vehicle industry is to overcome the increasing demands for higher performance, maximum power and longer life of components, all this at a reasonable cost and in a short period of time.NHA design is relooked for optimization to meet our targets. Before relook into design, previous design study, its mfg. processes, study and investigations of field components are done. Also, it indicates the direction towards work. First Analytical approach then Experimental validation will be carried out. Optimized NHA fit into requirement of BS IV emission norm by successful validations. Further, Optimized NHA replaced with existing design on engine and available for customers.
Keywords: NHA, Nozzle, BS III emission norms, BS IV emission norms.
8. Stamping Process Parameter Optimization with Multiple Regression Analysis Approach
Abstract: Stamping is very important manufacturing process used for producing component from the metal sheet. In stamping process, the force applied by a punch on the blank and make it flow into the die cavity. At the time of blank deformation, it experiences the complex stresses, tensile as well as compressive. The excessive compressive stresses of sheet metal result in wall thickening and wrinkling in flange region, while tensile stresses initiate thinning in the wall region of the cup. The excess thinning causes cracking or fracture of a sheet. The faulty process design ultimately produces nonconforming products. The successful design of stamping process involves designing of the tooling and identification of the optimum level of the process parameters. Finite Element Method (FEA) immensely used in design and analysis of the stamping process, considered as avery important tool for predicting the stresses likely to be developed in the stamped components before the tryout of the process. While multiple regression analysis (MRA) is am athematical technique used to establish are lation between the response and the predictors. The proposed methodology combines two techniques, FEA, and regression analysis to study the impact of various parameters and their interaction on the thinning of the sheet metal. Regression analysis is used to optimize the parameters to minimize the thinning of the blank. The usefulness of methodology for optimization of stamping process parameter validated with experimental production of the component.
Keywords: Material thinning, FEA, multiple regression analysis, Taguchi orthogonal array, punch radius, die radius, optimization.
9. Tailor Welded Blanks (TUBs) for a Sheet Metal Industry an Overview
Abstract: Sheet metal stamping technology has a ultimate challenge to meet expectations primarily such as, low cost, low weight & high quality of a stamped panels in past years, due to its dynamic competitive & nature. To achieve these goals, many improvements are accepted till date and many going on. Tailor welded blank (TWB) is one of such improvement which have really proved to be a promising to get all primary goals of the stamping industry very effectively. In sheet metal forming operation, the blank is typically supplied in a single piece, usually cut from a larger sheet and has uniform thickness. Especially, car body panels were usually made up of several smaller components. Each component is formed individually and subsequently welded together to create the desired body panel. This approach incorporates high tooling, long lead time, laborious efforts & certainly high material costs. Moreover, this approach also contributes to the dimensional inaccuracy in the assembly process. Therefore, it is attractive to form the body panels in a single stamping by using Tailored Blanks, to incorporate various advantages in single sheet. The first use of Tailor welded blank in a history is somewhat unclear. From earlier researches, it is known that Honda (1967) had used TWBs first in automotive for body side rig, but was too costly due to non-developed welding techniques at that time. This all scenario is drastically improved over a decades & a modern TWBs with highly developed welding techniques supported by precise numerical methods available which are reviewed in this paper. This review paper focused to gather all recent developments & research work in the area of TWBs in manufacturing industries.
Keywords: Tailor welded blank, formability, numerical analysis, simulation.
10. Optimal Kinematic Synthesis of Crank & Slotted Lever Quick Return Mechanism for Specific Stroke & Time Raio
Abstract: A quick return mechanism converts rotary motion into reciprocating motion. It consist of two different range of velocities for its strokes i.e. working and return. The working stroke is required to be slower than return stroke. Rational kinematic synthesis of quick return mechanism is the motivation of this study. The optimal synthesis of mechanisms satisfy all the desired characteristics of the designed mechanism. The Quick Return Mechanism is synthesized using the conventional analytical method and Powell’s optimized method. Powell’s Optimization method is free from derivative implementation. The optimization process is done in MATLAB software. The Analytical results are compared with the results of Powell’s Technique. The Velocity analysis is done for both the results using Relative Velocity Method and the software simulation is done using CREO software to validate the results.
Keywords: Quick return Mechanism, Synthesis, Optimization, Powell’s Technique.
11. Milling Process Parameter Optimization Using Taguchi Method
Abstract: The present study focused on optimization of end milling process parameters to improve Surface finish and Dimensional deviation of Cam indexing drive casing. The effect of three machining parameters namely Spindle speed, Feed rate and Depth of Cut on Surface finish and Accuracy of dimensional deviation were investigated by using Taguchi Design approach. An orthogonal array, Signal to noise (S/N) ratio and analysis of variance (ANOVA) were employed to analyze the effect of these end milling process parameters. The analysis of results shows that Spindle speed and Feed rate are most influencing parameters on response variables than Depth of cut. Validation of results is done by using regression analysis and experimental production.
Keywords: ANOVA; End milling operation; Regression analysis; Surface Roughness; Taguchi Design;
12. Experimentation and Optimization of injection moulding process parameter through Taguchi method and Mould flow analysis
Abstract: Injection moulding is a manufacturing process in which the molten plastic is inserted into a cavity called as mould. Material for the part is fed through hopper into a heated barrel, mixed, and forced into a mould cavity, where it cools and hardens to the configuration of the cavity. In this project Taguchi method is used for Optimization of Injection moulding process parameter. The experiments conducted by using Injection moulding De-Tech100 machine with material Kaiffa PBT 302 G0 used. S/N ratio is used to find the optimum combination of process parameters and importance of each parameter is known by performing ANOVA analysis. The last important aim was to find the effect of Injection pressure, Injection speed, screw speed and cooling time on injection moulding process. The injection moulding process parameters are also optimized using Mould flow analysis using mould flow advisor Autodesk. The main conclusion drawn from this project is that most of rejections are due to short filling which can be minimized by setting the all these parameters at high level.
Keywords: Plastic Injection moulding, Taguchi method, S/N ratio, ANOVA, Creo 2.0, Mould flow analysis.
13. Design Analysis of a Cross Member Panel for Eliminating a Wrinkling
Abstract: Sheet metals widely used for industrial and consumer parts because of its capacity for being bent and formed into intricate shapes. Sheet metal forming process obtain the required shape and size of the raw material by subjecting the material to plastic deformation through the application of tensile force, compressive force, bending or shear force or combinations of these forces. The cross member is an essential structural component of a vehicle formed by sheet metal forming process. It supports the underside of a car and carries the weight of the engine and transmission system. Several defects can occur like wrinkling in the flange and cup wall, tearing and surface scratches. While forming of the cross member, wrinkling is one of the most severe defect observed. Present study focuses on a cross member panel part to eliminate wrinkling defect observed in it. This wrinkling elimination carried by the study of existing design, simulation analysis, and necessary corrections followed by actual panel analysis. Design alterations are suggested referring simulation results which result in defect elimination in actual production. A simple, clear, and comprehensive approach described in this article for the design analysis of a cross member panel for eliminating a wrinkling defect.
Keywords: Formability, Simulation, Forming Limit Diagram, Sheet Metal Forming, Crash Forming, Wrinkle Defect.
14. A state of art in a sheet metal stamping forming technology – an overview
Abstract: Sheet metals are widely used for industrial and consumer parts because of its capacity for being bent and formed into intricate shapes. Sheet metal parts comprise a large fraction of automotive, agricultural machinery, and aircraft components as well as consumer appliances. Sheet metal forming is the process of obtaining the required shape and size on the raw material by subjecting the material to plastic deformation through the application of tensile force, compressive force, bending or shear force or combinations of these forces. Forming is a widely-used process which finds applications in automotive, aerospace, defense and other industries. Sheet metal forming is one of the non-cutting operations that can be performed on power press. Sheet-metal forming is a more complex operation than cutting or bending, and more things can go wrong. Several defects can occur in a formed product like wrinkling in flange and cup wall, tearing, earing and surface scratches etc. To reduce various defects in deep drawing process it is essential to control or vary some parameters of it. A blank holding force, punch force, material property of sheet metal, thickness of Sheet, velocity of punch, these are all affecting parameters in deep drawing process to regulate wrinkling effect, tearing effect and fracture defect. This paper presenting important researches undertaken in the field and their valuable findings which may be helpful for future work.
Keywords: Sheet metal forming, formability, simulation, finite element analysis, wrinkling.
15. Tribological Performance Analysis of Composite Material for Journal Bearing
Abstract: The tribological behavior of composites having base material as polyether-ether-ketone (PEEK) and filler materials like Polytetrafluroethylene (PTFE), MoS2, bronze and the conventionally used brass is studied. The wear rate analysis is carried out using the pin on disk apparatus. The journal bearing in connecting rod of an internal combustion engine was taken as an application for the study. The main objective behind this is to find the wear rate of different materials and to suggest the best material which will give minimum wear also to give the best values of parameters at which minimum wear occurs. PEEK having mechanical properties like high wear resistance, strength, low thermal conductivity also it is an injection moldable polymer with a high
operating temperature and chemical resistance. PTFE having excellent tribological properties. By the addition of PEEK and PTFE with fillers modifies the tribological properties. During the experiment variable load and speed was selected according to the application.
Keywords: Composite, PEEK, PTFE, Bronze, MoS2, Journal Bearing
16. Review of Performance Analysis of Crankshaft Thrust Washer Bearing Material
Abstract: This research experimentally quantifies and maps the behavior of thrust washer under various conditions. The bearing is to be test at controlled loads and speeds for a governed period of time or until failure. In present work thrust washer bearing materials testing is to be carried out under dry as well as lubricated condition at two loads and four velocities. Aim of the present work is to find out the wear and coefficient of friction of bearing materials under dry as well as lubrication conditions and suggest the suitability of the thrust washer bearing material on crankshaft. For finding the wear and friction, we used pin on disc machine. The testing is to be carried out by maintaining the similar condition of testing as in case of actual engine. Therefore we have to use disc material as material of shaft i.e. steel no.1045. The disc is hardened and tempered . Pin on disk machine records frictional force, temperature and height loss from which the wear rate and coefficient of friction can be calculated. The results obtained from the experiment are analyzed and effect of load and speed on both the bearing materials along with wear trends obtained with respect to time is studied and suitable Thrust washer bearing material is chosen.
17. Review of Finite Element Analysis of Vehicle Rim
Abstract: In this Paper a general concept of the FEM analysis is also shown through the realproject on vehicle rim. FEA consists of a computer model of a material or design that is analyzed for specific results. Modifying an existing product or structure is utilized to qualify the product or structure for a new service condition. In case of structural failure, FEA may be used to help determine the design modifications to meet the new condition. Structural analysis covers static analysis, modal analysis, harmonic analysis, transient dynamics, Eigen value problems.
Keywords: Finite Element Methods (FEM), Finite Element Analysis (FEA), Radial stress, Rim
18. Optimization of Stamping Process Parameters for Material Thinning with Design of Experiment Approach
Abstract: Drawing is a forming process in which a blank of sheet metal is drawn in a forming die by the action of a punch and convert the blank into the desired shape. Drawing involves complex material flow conditions and forces distribution. In the drawing, metal is subjected to compressive and tensile stresses. The compressive stresses of sheet metal result in wall thickening and wrinkling in flange region, while tensile stresses initiate thinning in the wall region of the cup. The thinning results into cracking or fracture of a sheet. Finite element method is widely applied to simulate the drawing operation to estimate stresses and strain. For the successful simulation of a real life drawing process an accurate numerical model, along with a precise description of material behavior and contact conditions are essential. The finite element method is a useful and powerful technique to compute material thinning or thickening before the tryout of the process. The proposed innovative methodology combines two techniques, Finite element analysis (FEA) and Taguchi method for the prediction of thinning at a particular setting of parameters and finding the optimum level of parameters for minimizing thinning. Experimental validation of results proves the applicability of the newly proposed approach.
Keywords: Sheet thinning, FEA, Taguchi method, Punch radius, Draw tonnage.
19. Analysis of Stresses in Wheel Rim by using Dynamic Cornering Fatigue Test
Abstract: Steel disc wheels of vehicles have to pass dynamic cornering fatigue test, the dynamic radial fatigue test, and the impact test. In the actual product development, the dynamic cornering fatigue test is used to detect the fatigue strength and life of the wheel. Therefore, a design and test procedure is needed which is reliable and guarantee the required strength under full operational conditions of the wheel. Loads generated during the assembly is reason of stress in wheel parts. Under this test condition, these high levels of stress alter the mean stress level which in turn, changes the fatigue life and critical stress area of the components as well. This paper describes a model for prediction of fatigue failures of steel disc wheels, and compares the prediction using simulation results with experimentation test data by applying loads on mounting holes in first condition and on mounting holes as well as on disc in second condition and suggest best condition.
Keywords: Wheel rim, Simulation, finite element analysis, dynamic cornering fatigue test.
20. Acoustic Based Condition Monitoring of Stamping Process : A Review
Abstract: The main objective of the paper is to describe the activity around the world in the way of research, development, and application of techniques for condition monitoring and fault diagnosis of stamping operation. The paper initially deals with the stamping process; then it discusses the data processing techniques like wavelet transform and Harr transform along with the techniques used for the diagnostic purpose in condition monitoring such as Hidden Markov Model (HMM), and artificial neural network (ANN). The techniques discussed are having their benefits as well as limitations; all are not definitive. In this paper, an attempt is made to elaborate importance along with the limitations of acoustic emission technique (AET) with its applicability for the condition monitoring of stamping machine. As, over the last few decades, acoustic emission (AE) has proved its strength and reliability as an online monitoring technique.
Keywords: Stamping process, Transforms, Data processing, Acoustic emission
21. Spring Operated High Velocity Toggle Switch for Earthing
Abstract: Earthed means safe. The motive of Earthing Switches is to protect operator and switchgear in the event of inadvertent operation. Power demand is increasing continuously, and reliable distribution systems are needed to serve this demand. Increasing awareness & education towards safety associated with switchgear demand for complete mechanical interlocks and features to ensure thorough safety for the operating personnel. Hence safety of personnel operating or maintaining MV switchgear is crucial. When work needs to be done on an electrical installation, the equipment must be earthed, since earthing is what ensures the equipotentiality of the working area.
22. Analysis of Composite Journal Bearing-As a Review
Abstract: Technology has always been used to achieve better performance in any mechanical system. The cylindrical hydrodynamic journal bearing is the most basic hydrodynamic bearing with cylindrical bore. This bearing has a high load capacity, and the simple design is compact, bi-rotational, and easy to manufacture. However, as the design speeds of machines increased, it is found that this bearing had limitations due to oil whirl. Oil whirl is very undesirable because of high vibration amplitudes, forces, and cyclic stresses that are imposed on the shaft, bearings and machine creating the instability of bearing.
In this work, we are going to do the pressure distribution analysis of the lobe type composite journal bearing which is composed of PTFE based material with some filler material since the PTFE material has capability of withstanding dry and wet running and the filler material to increase load carrying capacity, thermal conductivity, dimensional stability, and to lower friction coefficient.
Keywords: PTFE; Carbon Fiber; Oil whirl; 3 Lobe Bearing
23. Performance Analysis of FMS for Workstation Utilization and Product Mix
Abstract: In the present work, integration of process planning and scheduling has been performed for Virtual Batch Production (VLM) consisting of multiple product. Once order is received, multiple process plans for each part type are generated. It is assumed that two consecutive operations are not performed on the same machine and that machine can be revisited by job for a later operation. This paper presents a simulation study aimed at evaluating the performances of a flexible manufacturing system (FMS) in terms average resource utilization, subjected to different control strategies which include finding the effectiveness of process plane. The routing strategies are combined with first come first serve and shortest processing time remain dispatching rules and studied in multiproduct production, limiting the capacity of buffer of machine and system in buffer and system out buffer to finite. The simulation results indicate that the dynamic shifting between the products for particular routing of FMS outperforms single part strategy. Single Process Plan (SPP) environment represents the manufacturing scenario in which only one process plan for each part type is available during production
24. Simulation Analysis of Flexible Manufacturing System for Variable Routing & Product Mix
Abstract: In the present work, integration of process planning and scheduling has been performed for Virtual Batch Production (VLM) consisting of several product types. Once order is received, multiple process plans for each part type are generated. It is assumed that two consecutive operations are not performed on the same machine and that machine can be revisited by job for a later operation. This paper presents a simulation study aimed at evaluating the performances of a flexible manufacturing system (FMS) in terms of makespan, average resource utilization, subjected to different control strategies which include finding the effectiveness of dynamically shifting to multiple process plans over single process plan under prescribed dispatching rules. The routing strategies are combined with first come first serve dispatching rule and studied in multi-product production, limiting the capacity of buffer of machine and system in buffer and system out buffer to finite. The simulation results indicate that the variable routing scheduling of FMS outperforms single routing strategy. Single Process Plan (SPP) environment represents the manufacturing scenario in which only one process plan for each part type is available during FMS production while in Multiple Process Plan (MPP) environment represents the manufacturing scenario in which four process plans for each part type remain available during FMS production.
25. Measurement of equipment indicator by Fuzzy Logic
Abstract: Condition monitoring and maintenance of the equipment are very important to have the maximum equipment effectiveness. The top management requires the indicator of the overall performance of the maintenance function. The one such a measure is the equipment effectiveness indicator. If the equipment utilization decreases the indicator value also decreases. The indicator has three main constituents, which are availability of the equipment, the rate at which the equipment is performing and the product quality performance of the production equipment. But in the calculation of effectiveness these three constituents are given equal importance but instead of this if the priority of the particular factor over the other is decided if it required? The system effectiveness indicator will present more realistic value. The proposed fuzzy interference system will provide weighted calculation of the equipment effectiveness with priority consideration.