Vivek Sunnapwar - Academia.edu (original) (raw)
Papers by Vivek Sunnapwar
Procedia Engineering, 2013
Crankshaft is one of the critical components of an IC engine, failure of which may result in disa... more Crankshaft is one of the critical components of an IC engine, failure of which may result in disaster and makes engine useless unless costly repair performed. It possesses intricate geometry and while operation experiences complex loading pattern. In IC engines, the transient load of cylinder gas pressure is transmitted to crankshaft through connecting rod, which is dynamic in nature with respect to magnitude and direction. However, the piston along with connecting rod and crankshaft illustrate respective reciprocating and rotating system of components. the dynamic load and rotating system exerts repeated bending and shear stress due to torsion, which are common stresses acting on crankshaft and mostly responsible for crankshaft fatigue failure. Hence, fatigue strength and life assessment plays an important role in crankshaft development considering its safety and reliable operation. The present paper is based on comparative studies of two methods of fatigue life assessment of a single cylinder diesel engine crankshaft by using fracture mechanics approach viz. linear elastic fracture mechanics (LEFM) and recently developed critical distance approach (CDA). These methods predict crack growth, time required for failure and other parameters essential in life assessment. LEFM is an analytical method based on stress intensit y factor which characteristics the stress distribution in the vicinity of crack tip, whereas CDA is a group of methods predicts failure using stress distance plot. The maximum stress value required for both the methods are obtained using finite element analysis based commercial software known as ABAQUS. The present paper provides an insight of LEFM and CDA methods along with its benefits to the designers to correctly assess the life of crankshaft at early stage of design. This paper also gives a detailed overview of failure analys is process including theoretical methods and result integration for predicting life of components as compared to life estimation by means of software.
Industrial Engineering, May 2, 2019
In automobile industry, to operate effectively the supply chain management, the purchasing functi... more In automobile industry, to operate effectively the supply chain management, the purchasing function is very important to perform effectively. It is the responsibility of purchasing department to choose the correct suppliers to purchase the required products for their company. Thus, supplier evaluation technique is essential for purchase manager's point of view to choose the best supplier among available suppliers. The literature addresses quality, delivery, technology, value and service as the five most common criteria used for supplier quality evaluation. In this chapter, approach of evaluation and selection of supplier has been presented as per the ISO 9000/TS16949 standards. Considering the most important criteria for evaluating the quality of suppliers based on a review of the literature and observation in practice. Finally, these organizations continuously review and implement effective quality systems following the rigorous ISO 9000/TS16949 series of standards and most automobile companies have developed in-house procedures and software for the supplier selection process.
International Journal of Innovations in Engineering and Science
Presently three-dimensional digital model developments of anatomical structures are in much inter... more Presently three-dimensional digital model developments of anatomical structures are in much interest of bio-medical praxis. Application of computers helps for pre-planning surgery, optimized implant in terms of geometry and fixture or surgical templates development for accurate positioning and orientation of implant. Lack of image processing technology in extracting the boundaries and inherent complexities of tissue anatomical structure, the software's developed for 3D construction is not much effective to convert CT/MRI images to solid models. This paper presents the problems of image processing technology and inefficiency of CAD to develop models with a proposed solution to remove unwanted curves by reducing the noise level of the curve to make it suitable to reconstruct solid model.
Journal of Manufacturing Processes, 2022
Concepts, Applications and Emerging Opportunities in Industrial Engineering, 2021
To survive in the global competitive market, the manufacturing organization must adopt changes in... more To survive in the global competitive market, the manufacturing organization must adopt changes in technologies and strategies into their processes on a continuous basis. So, nowadays, Lean, Green, and Six Sigma became business process strategies, which are employed in most of the organization to enhance their manufacturing performance. However, the significant information is that these strategies are implemented sequentially instead of simultaneously. The objective of this chapter is to propose an integrated Lean- Green-Six Sigma strategic framework for manufacturing industries that effectively implementing this approach will lead business processes to achieve operational, financial, social, and environmental growth. This will also guide the practitioner and academician those who are working on manufacturing strategies.
2020 Third International Conference on Smart Systems and Inventive Technology (ICSSIT), 2020
In biomedical domain, human skull fractures caused by accidents or any other reasons are required... more In biomedical domain, human skull fractures caused by accidents or any other reasons are required to reassemble. The process of reassembling the fragmented skulls is called skull prototyping or skull completion, followed by the skull repairing process. In the human body, skulls are the regions that are fragmented along a wide range of geometric information that may be fragile. Resolved skull has been supposed to possess higher conformity, particularly under the area of frontal facial along the subtle substrate. With the development of the computer-aided design (CAD) tool, it is possible to complete the fragmented skulls and/or repair damaged skulls using the various computer vision techniques. The bio-CAD methods are introduced for fragmented skull completion and/or damaged skull repairing. This paper has presented a study of various skull prototyping methods. The main focus of this study is to review the computer vision techniques used for human skull prototyping. A systematic stud...
Journal of Physics: Conference Series, 2020
CAD used to facilitate engineering design, modeling, simulation, analysis, and manufacturing. Rec... more CAD used to facilitate engineering design, modeling, simulation, analysis, and manufacturing. Recent advancement in computer graphics, medical imaging, and Image processing created new ways for CAD in the design, modeling, and development of many novels and essential biomedical and non-biomedical applications. The Biomedical use to develop implant, scaffold, prostheses, surgical guide, and other medical devices. The non-medical use in forensic, anthropology, passenger safety product design, and impact analysis. This review article gives an overview of various recent approaches for the development of virtual Bio-CAD models from high resolution medical images. It shows how to choose the appropriate path as per the application's requirement in terms of its complexity and capturing features. Key publications from the reputed peer-reviewed journals and books have been reviewed and presented a different approach to develop Bio-CAD models from non-invasive medical imaging data. Differe...
Social Science Research Network, 2020
Noise pollution is the major drawback of I.C. engines. Automotive engineers and researchers have ... more Noise pollution is the major drawback of I.C. engines. Automotive engineers and researchers have been working consistently on reducing automotive noise as well as pollution. While designing the mufflers; care has to be taken not only for noise reduction but also for exhaust emission, back pressure, space constraints, cost incurred, etc. Various methods to design and analyze the mufflers have been devised by researchers across the globe. Many guidelines have been provided by the authors in this regard. In the present paper, an attempt is made to present a comprehensive review of literature in context to design and analysis of automotive mufflers.
Proceedings of International Conference on Intelligent Manufacturing and Automation, 2018
The supplier selection has a significant impact on the manufacturing industries. Selecting the be... more The supplier selection has a significant impact on the manufacturing industries. Selecting the best green supplier among many alternatives is a multi-criteria decision-making (MCDM) problem. This research aims to survey current green activities in supplier selection in India and to evaluate best green supplier. Various environment factors affecting in the manufacturing sectors are considered in this study. Fuzzy analytic hierarchy process (FAHP) based on Chang’s extent analysis, is utilized in order to select best green supplier. The data from pairwise evaluation of all criterions are given in triangular fuzzy numbers. The uncertainties of decision problem can be dealt with, and a more effective decision can be reached. A case study is conducted to illustrate the utilization of the model for the green supplier selection problem.
Communications in Computer and Information Science, 2011
Consumer products companies are under escalating demands to reduce time-to-market and the cost of... more Consumer products companies are under escalating demands to reduce time-to-market and the cost of introducing new products. As product lifecycles continue to decrease, compressing development cycles and accelerating new product introductions are ...
International journal of information technology, May 19, 2022
Lean Manufacturing, 2021
The study focuses on the analysis of the direct effect of Lean Manufacturing (LM) practices on op... more The study focuses on the analysis of the direct effect of Lean Manufacturing (LM) practices on operational performance in manufacturing industry. A model for evaluating the effect of LM is developed taking into consideration as a fundamental variable that affects the causal relationship between LM practices and operational performance. A structural equation model was proposed and investigated across the manufacturing industry in India. A structured survey questionnaire was used to collect empirical data from 400 Indian companies. A total of 203 usable responses were obtained giving a response rate of 53%. The data was analyzed using SPSS- AMOS software. The results revealed that LM practices directly and positively affected operational performance. The results indicated that the structural equation model remained invariant across the Industry. The study provides further evidence to managers and practitioner on the effect of LM practices on operational performance in developing count...
International Journal of Industrial and Manufacturing Systems Engineering
The TQM Journal
PurposeThis article aims to explore synergies between Lean, Green and Six Sigma practices in orde... more PurposeThis article aims to explore synergies between Lean, Green and Six Sigma practices in order to propose an integrated LGSS framework for continuous and incremental improvement in the Indian manufacturing industries. The three-dimensional LGSS framework seeks to provide various combinations and support operational, financial, environmental and social needs.Design/methodology/approachIn the research method, first, the current problems faced by Indian manufacturing industries are considered and proposition of a conceptual framework that qualitatively integrates synergistic aspects of Lean, Green and Six Sigma practices, and second, the framework is checked by a survey taken from 203 Indian firms by using SPSS-AMOS.FindingsThe hypothesized result suggests that the positive impact of integrated practices on firm performance in terms of operational, financial, social and environmental outcomes. It also provides a systemic and holistic approach to problem-solving through constant and...
International Journal of Information Technology
International Journal of Industrial and Manufacturing Systems Engineering
International Journal of Applied Management and Technology
Intense competition, demanding customers, and shortening product life cycles are prompting small-... more Intense competition, demanding customers, and shortening product life cycles are prompting small- and medium-sized enterprises to invest in advanced manufacturing technologies (AMTs). Small manufacturers often depend on large manufacturers for orders and so require design as well as manufacturing flexibility on their part. One way of achieving the flexibility is through adoption of AMTs. The decision to invest in AMT is a major decision and thus requires proper consideration to all the aspects of the implementation process before a final commitment is made. Although the technical capabilities of AMTs are well proven, neither practitioner nor academics agree upon a framework for its successful implementation. Using Churchill’s model (Steps 1 and 2) and drawing a link from the available literature, a theoretical framework is developed for the successful implementation of AMTs in small- and medium-sized enterprises. Three implementation phases—namely, planning, preimplementation, and p...
The TQM Journal
Purpose The purpose of this paper is to present a systematic literature review and its analysis c... more Purpose The purpose of this paper is to present a systematic literature review and its analysis concerning a possible framework, compatibility, drivers and barriers for integrating three manufacturing strategies – Lean, Green and Six Sigma. In particular, analyzing current proposals and identifying the literature gaps in the existing literature from which future research directions and challenges have been suggested for developing a specific integrated framework for the Indian manufacturing industry. Design/methodology/approach This study explores manufacturing strategic area in depth through literature review, which will point out to the better understanding of the compatibility and impact of these initiatives through the conceptual framework, on the performance of the manufacturing organization. Findings The review of shortlisted articles indicates that Lean, Green and Six Sigma (LGSS) strategies help the manufacturing organizations to compete in global markets through the impact ...
South Asian Journal of Marketing & Management Research
Procedia Engineering, 2013
Crankshaft is one of the critical components of an IC engine, failure of which may result in disa... more Crankshaft is one of the critical components of an IC engine, failure of which may result in disaster and makes engine useless unless costly repair performed. It possesses intricate geometry and while operation experiences complex loading pattern. In IC engines, the transient load of cylinder gas pressure is transmitted to crankshaft through connecting rod, which is dynamic in nature with respect to magnitude and direction. However, the piston along with connecting rod and crankshaft illustrate respective reciprocating and rotating system of components. the dynamic load and rotating system exerts repeated bending and shear stress due to torsion, which are common stresses acting on crankshaft and mostly responsible for crankshaft fatigue failure. Hence, fatigue strength and life assessment plays an important role in crankshaft development considering its safety and reliable operation. The present paper is based on comparative studies of two methods of fatigue life assessment of a single cylinder diesel engine crankshaft by using fracture mechanics approach viz. linear elastic fracture mechanics (LEFM) and recently developed critical distance approach (CDA). These methods predict crack growth, time required for failure and other parameters essential in life assessment. LEFM is an analytical method based on stress intensit y factor which characteristics the stress distribution in the vicinity of crack tip, whereas CDA is a group of methods predicts failure using stress distance plot. The maximum stress value required for both the methods are obtained using finite element analysis based commercial software known as ABAQUS. The present paper provides an insight of LEFM and CDA methods along with its benefits to the designers to correctly assess the life of crankshaft at early stage of design. This paper also gives a detailed overview of failure analys is process including theoretical methods and result integration for predicting life of components as compared to life estimation by means of software.
Industrial Engineering, May 2, 2019
In automobile industry, to operate effectively the supply chain management, the purchasing functi... more In automobile industry, to operate effectively the supply chain management, the purchasing function is very important to perform effectively. It is the responsibility of purchasing department to choose the correct suppliers to purchase the required products for their company. Thus, supplier evaluation technique is essential for purchase manager's point of view to choose the best supplier among available suppliers. The literature addresses quality, delivery, technology, value and service as the five most common criteria used for supplier quality evaluation. In this chapter, approach of evaluation and selection of supplier has been presented as per the ISO 9000/TS16949 standards. Considering the most important criteria for evaluating the quality of suppliers based on a review of the literature and observation in practice. Finally, these organizations continuously review and implement effective quality systems following the rigorous ISO 9000/TS16949 series of standards and most automobile companies have developed in-house procedures and software for the supplier selection process.
International Journal of Innovations in Engineering and Science
Presently three-dimensional digital model developments of anatomical structures are in much inter... more Presently three-dimensional digital model developments of anatomical structures are in much interest of bio-medical praxis. Application of computers helps for pre-planning surgery, optimized implant in terms of geometry and fixture or surgical templates development for accurate positioning and orientation of implant. Lack of image processing technology in extracting the boundaries and inherent complexities of tissue anatomical structure, the software's developed for 3D construction is not much effective to convert CT/MRI images to solid models. This paper presents the problems of image processing technology and inefficiency of CAD to develop models with a proposed solution to remove unwanted curves by reducing the noise level of the curve to make it suitable to reconstruct solid model.
Journal of Manufacturing Processes, 2022
Concepts, Applications and Emerging Opportunities in Industrial Engineering, 2021
To survive in the global competitive market, the manufacturing organization must adopt changes in... more To survive in the global competitive market, the manufacturing organization must adopt changes in technologies and strategies into their processes on a continuous basis. So, nowadays, Lean, Green, and Six Sigma became business process strategies, which are employed in most of the organization to enhance their manufacturing performance. However, the significant information is that these strategies are implemented sequentially instead of simultaneously. The objective of this chapter is to propose an integrated Lean- Green-Six Sigma strategic framework for manufacturing industries that effectively implementing this approach will lead business processes to achieve operational, financial, social, and environmental growth. This will also guide the practitioner and academician those who are working on manufacturing strategies.
2020 Third International Conference on Smart Systems and Inventive Technology (ICSSIT), 2020
In biomedical domain, human skull fractures caused by accidents or any other reasons are required... more In biomedical domain, human skull fractures caused by accidents or any other reasons are required to reassemble. The process of reassembling the fragmented skulls is called skull prototyping or skull completion, followed by the skull repairing process. In the human body, skulls are the regions that are fragmented along a wide range of geometric information that may be fragile. Resolved skull has been supposed to possess higher conformity, particularly under the area of frontal facial along the subtle substrate. With the development of the computer-aided design (CAD) tool, it is possible to complete the fragmented skulls and/or repair damaged skulls using the various computer vision techniques. The bio-CAD methods are introduced for fragmented skull completion and/or damaged skull repairing. This paper has presented a study of various skull prototyping methods. The main focus of this study is to review the computer vision techniques used for human skull prototyping. A systematic stud...
Journal of Physics: Conference Series, 2020
CAD used to facilitate engineering design, modeling, simulation, analysis, and manufacturing. Rec... more CAD used to facilitate engineering design, modeling, simulation, analysis, and manufacturing. Recent advancement in computer graphics, medical imaging, and Image processing created new ways for CAD in the design, modeling, and development of many novels and essential biomedical and non-biomedical applications. The Biomedical use to develop implant, scaffold, prostheses, surgical guide, and other medical devices. The non-medical use in forensic, anthropology, passenger safety product design, and impact analysis. This review article gives an overview of various recent approaches for the development of virtual Bio-CAD models from high resolution medical images. It shows how to choose the appropriate path as per the application's requirement in terms of its complexity and capturing features. Key publications from the reputed peer-reviewed journals and books have been reviewed and presented a different approach to develop Bio-CAD models from non-invasive medical imaging data. Differe...
Social Science Research Network, 2020
Noise pollution is the major drawback of I.C. engines. Automotive engineers and researchers have ... more Noise pollution is the major drawback of I.C. engines. Automotive engineers and researchers have been working consistently on reducing automotive noise as well as pollution. While designing the mufflers; care has to be taken not only for noise reduction but also for exhaust emission, back pressure, space constraints, cost incurred, etc. Various methods to design and analyze the mufflers have been devised by researchers across the globe. Many guidelines have been provided by the authors in this regard. In the present paper, an attempt is made to present a comprehensive review of literature in context to design and analysis of automotive mufflers.
Proceedings of International Conference on Intelligent Manufacturing and Automation, 2018
The supplier selection has a significant impact on the manufacturing industries. Selecting the be... more The supplier selection has a significant impact on the manufacturing industries. Selecting the best green supplier among many alternatives is a multi-criteria decision-making (MCDM) problem. This research aims to survey current green activities in supplier selection in India and to evaluate best green supplier. Various environment factors affecting in the manufacturing sectors are considered in this study. Fuzzy analytic hierarchy process (FAHP) based on Chang’s extent analysis, is utilized in order to select best green supplier. The data from pairwise evaluation of all criterions are given in triangular fuzzy numbers. The uncertainties of decision problem can be dealt with, and a more effective decision can be reached. A case study is conducted to illustrate the utilization of the model for the green supplier selection problem.
Communications in Computer and Information Science, 2011
Consumer products companies are under escalating demands to reduce time-to-market and the cost of... more Consumer products companies are under escalating demands to reduce time-to-market and the cost of introducing new products. As product lifecycles continue to decrease, compressing development cycles and accelerating new product introductions are ...
International journal of information technology, May 19, 2022
Lean Manufacturing, 2021
The study focuses on the analysis of the direct effect of Lean Manufacturing (LM) practices on op... more The study focuses on the analysis of the direct effect of Lean Manufacturing (LM) practices on operational performance in manufacturing industry. A model for evaluating the effect of LM is developed taking into consideration as a fundamental variable that affects the causal relationship between LM practices and operational performance. A structural equation model was proposed and investigated across the manufacturing industry in India. A structured survey questionnaire was used to collect empirical data from 400 Indian companies. A total of 203 usable responses were obtained giving a response rate of 53%. The data was analyzed using SPSS- AMOS software. The results revealed that LM practices directly and positively affected operational performance. The results indicated that the structural equation model remained invariant across the Industry. The study provides further evidence to managers and practitioner on the effect of LM practices on operational performance in developing count...
International Journal of Industrial and Manufacturing Systems Engineering
The TQM Journal
PurposeThis article aims to explore synergies between Lean, Green and Six Sigma practices in orde... more PurposeThis article aims to explore synergies between Lean, Green and Six Sigma practices in order to propose an integrated LGSS framework for continuous and incremental improvement in the Indian manufacturing industries. The three-dimensional LGSS framework seeks to provide various combinations and support operational, financial, environmental and social needs.Design/methodology/approachIn the research method, first, the current problems faced by Indian manufacturing industries are considered and proposition of a conceptual framework that qualitatively integrates synergistic aspects of Lean, Green and Six Sigma practices, and second, the framework is checked by a survey taken from 203 Indian firms by using SPSS-AMOS.FindingsThe hypothesized result suggests that the positive impact of integrated practices on firm performance in terms of operational, financial, social and environmental outcomes. It also provides a systemic and holistic approach to problem-solving through constant and...
International Journal of Information Technology
International Journal of Industrial and Manufacturing Systems Engineering
International Journal of Applied Management and Technology
Intense competition, demanding customers, and shortening product life cycles are prompting small-... more Intense competition, demanding customers, and shortening product life cycles are prompting small- and medium-sized enterprises to invest in advanced manufacturing technologies (AMTs). Small manufacturers often depend on large manufacturers for orders and so require design as well as manufacturing flexibility on their part. One way of achieving the flexibility is through adoption of AMTs. The decision to invest in AMT is a major decision and thus requires proper consideration to all the aspects of the implementation process before a final commitment is made. Although the technical capabilities of AMTs are well proven, neither practitioner nor academics agree upon a framework for its successful implementation. Using Churchill’s model (Steps 1 and 2) and drawing a link from the available literature, a theoretical framework is developed for the successful implementation of AMTs in small- and medium-sized enterprises. Three implementation phases—namely, planning, preimplementation, and p...
The TQM Journal
Purpose The purpose of this paper is to present a systematic literature review and its analysis c... more Purpose The purpose of this paper is to present a systematic literature review and its analysis concerning a possible framework, compatibility, drivers and barriers for integrating three manufacturing strategies – Lean, Green and Six Sigma. In particular, analyzing current proposals and identifying the literature gaps in the existing literature from which future research directions and challenges have been suggested for developing a specific integrated framework for the Indian manufacturing industry. Design/methodology/approach This study explores manufacturing strategic area in depth through literature review, which will point out to the better understanding of the compatibility and impact of these initiatives through the conceptual framework, on the performance of the manufacturing organization. Findings The review of shortlisted articles indicates that Lean, Green and Six Sigma (LGSS) strategies help the manufacturing organizations to compete in global markets through the impact ...
South Asian Journal of Marketing & Management Research