Research - Dept. of Mechanical Engg.

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Crankshaft Strength Analysis Using Finite Element Method
(International Journal of Engineering Research and Applications (IJERA), 2013-02) Momin, Muhammad Zia Muhammad Idris
The crankshaft is an important component of an engine. This paper presents results of strength analysis done on crankshaft of a single cylinder two stroke petrol engine, using PRO/E and ANSYS software. The three dimensional model of crankshaft was developed in PRO/E and imported to ANSYS for strength analysis. This work includes, in analysis, torsion stress which is generally ignored. A calculation method is used to validate the model. The paper also proposes a design modification in the crankshaft to reduce its mass. The analysis of modified design is also done. Keywords – ANSYS, Crankshaft, Finite Element Method, PRO/E, Strength Analysis
Kinematic Modeling of Biped Robot
(Pillai HOC College of Engineering and Technology, 2014-02-21) Thavai, Rahul
In the last decades we have seen a rapid growth in use of Humanoid Robotics, which leads to an autonomous research field. Humanoid robots are used in all situations of human’s everyday life, cooperating with us. They will work in services, in homes and hospitals, and they are even expected to get involved in sports. Hence, they will have to be capable of doing a diversity of tasks [1]. Another important fact about today's and especially tomorrow’s humanoid robots resembles human-like in their shape and behavior. A number of applications in diverse fields are continuously increasing: replacement of humans in hazardous works such as rescue operations, military operations, disaster scenarios, or restoration movement in people with disabilities. By taking advantages of the strategic footholds in the terrain, legs increase traction and decrease energy consumption.
Statistical determination of the most suitable way of performing beam reactions experiment
(International Conference and Workshop on Advance in Mechanical Engineering 2014, TCET, Mumbai, India, 2014-02-28) Ansari, Zakir
beam reactions experiment is an experiment of the subject Enginnering Mecanics of First Year Engineering courses for all branches of Engineering, under University of Mumbai. In this experiment the reactions at the supports of a simply supported wooden beam are measured. The beam is supported by spring so that the deflection at the end supports can be measured with the help of a pointer connected to the spring. The spring at both ends deflects in proportion to the applied load and the distance of the load from the support.
Faculty Performance Improvement: Survey of Factors and Remedies at AIKTC
(Paper Presented @ International conference on "Recent Advances and Challenges in Engineering and Management", 2014-04) Ansari, Zakir
Improvements in quality teaching-learning help in effective concept learning by the students. This has become a mandatory requirement for the institutes providing professional courses like Engineering, Architecture and Pharmacy. This is because in such courses the focus is on learning concept so as to apply it in professional career of the students. In most of the cases different subjects of the professional courses are taught by different faculties. Their way of lecture delivery differs from person to person. The performance of the students is affected by some external factors as well as by the performance of their teachers. A survey of the factors affecting the students’ performance was done through the teaching faculties and two of the most significant factors were considered for improvement. The current paper aims at getting the responses of teachers having highest students’ feedback score through a questionnaire. The responses are for the factors affecting the performance of faculty. Based on the outcome of the survey the strategy to improve the teaching-learning process was decided. Keywords – Quality, Faculty performance;Engineering Education, Professional Courses;
Reduction of Cost of Quality by Using Robust Design: A Case Study in Automobile Industry
(Research Publish Journals, 2014-10) Khan, Jalal
The aim of a parameter design experiment is to identify and design the settings of the process parameters that optimize the chosen quality characteristic and are least sensitive to noise (uncontrollable) factors. Cost of Quality is evaluated in terms of dimensional tolerances. Robust design is implemented in a gear hobbing process. The optimum setting of parameter is to be obtained in presence of uncontrollable noise factors. The target value for Root Diameter of a spur gear used in shaft in an automobile is 28.00 mm. The dimensional tolerance for of a spur gear 27.90-28.10 mm. It was found that these were arbitrarily accepted as the tolerance limit and any component within this tolerance limit would be accepted as good quality. This concept is a traditional design concept where every part within a range is accepted as of good quality. Taguchi parameter design tries to find an optimum value so that component meets the desired specification or in other words meets the target value. Experimental analysis is performed at different levels of control factors and noise factors. Optimum value of control factors is found by studying Signal to Noise ratio (nominal the best). Again the tolerance ranges for Root Diameter were calculated and it was effectively found that the tolerance range was found as 29. 95-28.05 mm. The tolerance was reduced from 0.2 mm to 0.1 mm which led to overall reduction in cost of quality of a spur gear.
Reduction Of Cost Of Quality By Using Robust Design: A Research Methodology
(Research Publish Journals, 2014-10) Khan, Jalal
CoQ and Taguchi Design are to be integrated together for time and resource savings and determination of important factors affecting operation, performance and cost; and quantitative recommendations for design parameters which achieve lowest cost, high quality solutions. Taguchi’s parameter design method is a powerful tool for optimizing the performance characteristic of a product/process. The aim of a parameter design experiment is to identify and design the settings of the process parameters that optimize the chosen quality characteristic and are least sensitive to noise (uncontrollable) factors. Finally methodology for reducing Cost of Quality by using robust design is to be developed.
Review of Research Methodologies Linking Green Supply Chain Practices and Green Supply Chain Performance
(International Journal of Supply Chain Management, 2014-12) Gandhi, Asif
The objective of this paper is to explore the peerreviewed literature on green supply chain practices and green supply chain performance with the intention of characterizing the research methodologies used in these areas of research. In line with this objective, the constructs “Green Supply Chain Practices” and “Green Supply Chain Performance” were identified. As indicated by the literature already published there seems to be certain set of methodologies which have mostly been used and that too frequently. Accordingly, there is a need to do a more detailed study that can pinpoint particular research methodologies that are usually used in research related to green supply chain practices and green supply chain performance. This paper attempts to achieve the aim by using a keyword search for identifying papers related to green supply chain practices and green supply chain performance. Finally the methodologies used are summarized in order of their usage in order to characterize the research methodologies used in linking green supply chain practices and green supply chain performance. This will help newer research work to flow in the right direction without reinventing the wheel and also it will act as a ready reference for newer research work to practicing managers. Keywords— Green Supply Chain Practices; Green Supply Chain Performance; Review; Research Methodologies
Inverse Kinematics Solution for Biped Robot
(International Organization of Scientific Research (IOSR), 2015-01) Thavai, Rahul
A biped is a multi-jointed mechanism that performs a human's motions. It seems more difficult to analyze the behavioral character of walking robot due to the complexity of mathematical description. This paper focuses on developing a methodology for deriving an inverse kinematic joint solution of a biped robot. This work aimed to build the lower side, the locomotion part of a biped robot. It couples a design considerations and simplicity of design to provide inverse kinematics analysis of 11 degree-of-freedom (DOF) biped robot. The model used consists of 5-links which are connected through revolute joints. The identical legs have hip joint, knee joints and ankle joint. This paper addresses symbolic formulation for reducing problem in solving univariate polynomial. An effective approach is developed for the solution of inverse kinematics task in analytical form for given end-effector position. This method presents a simple and efficient procedure for finding the joint solution of bipeds.
Review Paper on Forced Convection Heat Transafer Augmentation Using Annular Blockages
(Technical Journals Online, 2015-01) Herle, A
The study of improved heat transfer performance is referred to as heat transfer enhancement, augmentation, or intensification. In general, this means an increase in heat transfer coefficient. Energy- and materials-saving considerations, as well as economic incentives, have led to efforts to produce more efficient heat exchange equipment. Common thermal-hydraulic goals are to reduce the size of a heat exchanger required for a specified heat duty, to upgrade the capacity of an existing heat exchanger, to reduce the approach temperature difference for the process streams, or to reduce the pumping power. The study of improved heat transfer performance is referred to as heat transfer enhancement, augmentation, or intensification. In general, this means an increase in heat transfer coefficient. [1] General techniques for enhancing heat transfer can be divided in three categories. One is passive method such as twisted tapes, helical screw tape inserts, rough surfaces, extended surfaces, additives for liquid and gases. The second is active method, which requires extra external power, for example mechanical aids, surface fluid vibration, use of electrostatic fields. Passive methods are found more inexpensive as compared to other group.
Review on Six Sigma (DMAIC) Methodology
(International Journal Of Modern Engineering Research (IJMER), 2015-02) Shaikh, Saad; Kazi, Javed
The growth rate of fair-size institutions and Organization is directly related to the implementation of Six Sigma Methodology. This paper consists of detailed analysis regarding application of six sigma Methodologies in Organizations and Institutions. This paper provides an overview to the literature into various categories and considers various methods/techniques suggested in the literature. Based on the review, avenues for further research are also discussed.
Quality management system (QMS), an assistance for NBA accreditation at UG engineering programmes
(The Indian Journal of Technical Education, 2015-03) Ansari, Zakir
There is always felt a requirement of employable engineers by the corporate sector. There has to be some indicator for quality of a student passing from an Institute. Quality Management Systems (QMS) is a tool for implementing quality standards at an institute. The assessment of the quality for an educational institute is done by different certifying boards like National Board for Accreditation (NBA), Accreditation Board for Engineering and Technology (ABET) etc. In order to assure about the employability of a student passing out of the institute,accreditation is a vital tool. Because of this reason many institutes are opting for the accreditation for their different undergraduate programmes. It is a well known fact that institutions 4 going for NBA accreditation need a lot of documents to be prepared and maintained as per the NBA accreditation requirements. OMS is a system for executing activities in an organisation as per the defined procedures. There are a lot of similarities between QMS and NBA. However NBA requirements are very specific in nature and are restricted to an educational institute while QMS requirements are generic in nature which can be implemented in an educational institute, Manufacturing unit even at a hospital as it is the process certification and not the product certification. Hence for meeting the specific requirements of NBA, the generic requirements of QMS can be fulfilled which will help and assisst during NBA accreditation. The current paper discusses the the similarities between the two and the assistance that can be taken by implementing the OMS before applying for the NBA accreditation.
Implementation of 5S Practices in a Small Scale Organization: A Case Study
(International Journal of Engineering and Management Research, 2015-04) Shaikh, Saad; Ansari, Noor (11ME11); Sawant, Ishtiyak (11ME47); Sayyed, Ziaul (11ME49); Khan, Naseem (11ME31)
A small scale industry plays an important role in Indian economy. In an organization the prime importance is given to the quality and productivity. Since a problem come across due to the defects in materials, down time in production, working conditions, housekeeping etc. This case study deals with the 5S implementation in an industry, Implementation of 5S can result in considerable improvements in environmental performance beside with improved housekeeping and health and safety.[5]5S can improve the quality, productivity and working conditions in organizations.
Review of 5S Technique
(International Journal of Science, Engineering and Technology Research (IJSETR), 2015-04) Shaikh, Saad; Ansari, Noor (11ME11); Khan, Naseem (11ME31); Sayyed, Ziaul (11ME49); Sawant, Ishtiyak (11ME47)
There are certain fields which are very demanding in today's trend. Small Scale Industry is one of the field. It plays an important role in Indian country. It has emerged as powerful source in providing relatively larger employment after agriculture. It contributes more than 50% of the industrial production in vast field of engineering .Global markets are continuously changing and demanding due to high quality and low cost. Such products can be produced using lean manufacturing , by this we aimed to reduce all types of wastes at product manufacturing so as to reduce product cost. 5S is a basic lean manufacturing technique for cleaning, sorting, organizing and providing necessary improvement in work place. This system helps to organize a workplace for efficiency and decrease waste and optimize quality and productivity via monitoring an organized environment[1]. 5S offers good results for required improvement. This method can be used in all companies , by this we can get good improvement in the production process of company. Consequently, 5S techniques would strongly support the objectives of organization to achieve continuous improvement and higher performance.
Static Analysis of Go-Kart Chassis by Analytical and Solid Works Simulation
(International Journal of Modern Engineering Research (IJMER), 2015-04) Thavai, Rahul; Kazi, Shahezad Faisal (11ME28); Mirza, Shahrukh Ajaz(11ME37); Mukri, Hassien Arman(11ME39); Khan, Imran Jamil (11ME53)
This paper aims to do modelling, simulation and performing the static analysis of a go kart chassis consisting of Circular beams. Modelling, simulations and analysis are performed using 3-D modelling software i.e. Solid Works and ANSYS according to the rulebook provided by Indian Society of New Era Engineers (ISNEE) for National Go Kart Championship (NGKC-14).The maximum deflection is determined by performing static analysis. Computed results are then compared to analytical calculation, where it is found that the location of maximum deflection agrees well with theoretical approximation but varies on magnitude aspect.
Kinematic, Dynamic Modeling and Simulation of Biped Robot
(International Journal of Science, Engineering and Technology Research (IJSETR), 2015-04) Thavai, Rahul
The idea of having a biped robot walking like a human is found to interesting in many aspects. Biped is a multi-jointed mechanism that performs a human’s motions. It seems more difficult to analyze the behavioral character of walking robot due to the complexity of mathematical description involved. This work is focused on developing a methodology for deriving mathematical modeling of a biped robot. The work is aimed to build the lower side, the locomotion part of a biped robot. The model used consists of 5-links which are connected through revolute joints. The identical legs have hip joint, knee joints and ankle joint. The Kinematical model is obtained using D - H Technique. It couples a design considerations and simplicity of design to provide inverse kinematics analysis of 11 degree-of-freedom (DOF) biped robot. Lagrangian formulation is applied to obtain dynamic model of robot. MAPLE software is used for mathematical modeling. The trajectory planning is done in Matlab for kinematic analysis and robot’s motions. By applying it, the user specific walking parameters, joint trajectories of the robot are computed. The parameters for these motions are found in simulation, under a criterion of stability of walking. Simulations are done in Matlab software to test the behavior of the humanoid. The results show that the proposed motions give an efficient and stable walking of the robot. This method presents a simple and efficient procedure for finding the joint solution of bipeds.
Literature review on optimization of cutting parameters for surface roughness in turning process
(International Journal of Engineering Research and Development, 2015-05) Qureshi, Arshad
This paper reviews the optimization of cutting parameters for surface roughness in the turning process. Surface roughness is one of the most commonly used criteria to determine quality of a turned surface. The surface roughness of a turned surface is an important response parameter. Surface roughness contributes to better function or longer life span. It also contributes to abrasion resistance material and good wear resistance. Taguchi method is a powerful tool to design optimization for quality. It is used to find the optimal cutting parameters such as cutting speed, feed rate, depth of cut and nose radius as the overall cost can be reduced. This paper gives some background of optimization technique applied to various turning processes for improving surface roughness.
Experimental Investigation on Forced Convection Heat Transfer Augmentation Using Annular Blockages
(P and R Engineering Consultancy Publication, 2015-05) Herle, A
Abstract— Heat exchangers have several industrial and engineering applications. The design procedure of heat exchangers is quite complicated, as it needs exact analysis of heat transfer rate and pressure drop estimations apart from issues such as long-term performance and the economic aspect of the equipment. Whenever inserts are used for the heat transfer enhancement, along with the increase in the heat transfer rate, the pressure drop also increases. This increase in pressure drop increases the pumping cost. Therefore any augmentation device should optimize between the benefits due to the increased heat transfer coefficient and the higher cost involved because of the increased frictional losses. Experimental work on heat transfer augmentation using annular blockages. Inserts when placed in the path of the flow of the fluid, create a high degree of turbulence resulting in an increase in the heat transfer rate and the pressure drop. The work includes the determination of friction factor and heat transfer coefficient for various annular blockages and annular blockages having different diameter. The results of annular blockages having different diameter have been compared with the values for the plain tube. Four annular blockages (di=20%, 30%, 40% & 50% reduction in outer diameter) are used in the study.
Optimization of Cutting parameters for Surface roughness in CNC turning of P20 steel
(International Journal of Scientific & Engineering Research, 2015-12) Qureshi, Arshad
The surface roughness is one of the most commonly used criteria to determine the quality of turned steel. The surface roughness of a turned surface is an important response parameter. The quality of product such as laptops, cell phones made by injection moulding greatly depends on finishing of the moulds. Surface roughness is one of the important factors for the materials used for making moulds and dies such as P20 steel. This paper optimize the cutting parameters such as feed rate, depth of cut and cutting speed for the turning process of AISI P20 steel (mould steel) for better surface finish. Taguchi’s technique has been used to accomplish the objective of the experimental study. L-9 Orthogonal array, Signal to noise (S/N) have been used for conducting the experiments.
Exploring correlations in components of green supply chain practices and green supply chain performance
(Emerald Group Publishing Limited, 2016) Gandhi, Asif
Purpose The purpose of this paper is to explore the peer-reviewed literature, as well as literature written by practitioners having authority on green supply chains and allied areas with a view to identify future research directions with the help of an extensive literature review. Design/methodology/approach In line with this objective, the constructs “Green Supply Chain Practices” and “Green Supply Chain Performance” were the two terms that were identified for a co-relational study. Findings As indicated by the literature review, there is a need to do a more detailed study that can pinpoint particular components of green supply chain practices that have a strong association with particular components of green supply chain performance. This paper attempts to achieve the aim by using a different connotation of these two constructs. Originality/value Such a study with the connotation and components of green supply chain (GSC) practices and GSC performance as identified and used in this paper might not have been conducted before in the way it is proposed to be used in this paper, thus making this an appropriate contribution. Accordingly, a framework for the research has been depicted, and research questions have been framed.
Literature Review for Design of Elliptical Bicycle
(International Journal of Science, Engineering and Technology Research (IJSETR), 2016-01) Shaikh, Saad; Shaikhnag, Yasser (12ME59); Surangiwala, Mohd. Hawwaad (12ME61); Shaikh, Falak (12ME02); Khan, Saniya (12ME01)
Customization design is a trend for developing a bicycle in recent years. Thus, the comfort of riding a bicycle is an important factor that should be paid much attention to while developing a bicycle. From the viewpoint of ergonomics, the concept of “fitting object to the human body” is designed into the bicycle frame in this study. Firstly the important feature points like riding posture, frame design, wheel size, materials required, method of manufacture and types of failures are discussed. Further this study proposes a detailed methodology which is helpful for the designer to develop an elliptical bicycle in an efficient and economical manner.

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