Indexing

Abstract:In a typical keyed shaft connection where shock or reversing loads are to be transmitted, the clearance between key and keyway required for fitting is a serious disadvantage. The impact loads, generate a continuous pounding between key and keyway. This pounding frequently leads to shaft failures. The present project work presents a Keyless coupling. The device provides an ultimate solution by incorporating all the advantages of interference fits, while eliminating mounting and removal problems. Analysis is carried using ANSYS. The obtained results are compared with standard values. The standard values are taken for RINGFEDER catalog. The keyless data is taken from RINGFEDER. Here it has made an attempt in analyzing keyless coupling. From the results it can be concluded that keyless coupling is most suitable.

Keywords:coefficient of thermal expansion, interference fit, virtual shrink, Contact surface, wedge principle.
Title:DESIGN ANALYSIS OF A KEYLESS COUPLING
Author:Kishor H.P, Raghu T
International Journal of Recent Research in Civil and Mechanical Engineering (IJRRCME)
Paper Publications

Abstract:In this paper design of experiment and FMEA techniques are combined to analyze casting defects. Attempt has been made to get optimal parameter setting for defects like cold shut and blow hole. Producing defect free casting is impossible. Defect analysis is carried using FMEA tool and Pareto analysis to know potential causes of failure and their effects along with correct actions to improve quality strength and productivity. The main objective of this paper is to optimize sand casting process parameter using DOE method through Taguchi method. Taguchi based L9 orthogonal array was used for experimental purpose and analysis was carried out using Minitab software for analysis of mean (ANOM) plot.  In this paper the data collected is taken from one foundry.

Keywords:Casting, FMEA, DOE, Taguchi methodology, Pareto analysis.
Title:A DEVELOPMENT OF QUALITY IN CASTING BY MINIMIZING DEFECTS
Author:PRASAN KINAGI, Dr. R.G MENCH
International Journal of Recent Research in Civil and Mechanical Engineering (IJRRCME)
Paper Publications

Abstract: The Structural Health Monitoring (SHM) has gained wide acceptance in the recent years as a means to monitor a structure and provide an early warning of an unsafe condition using real time data. Many researchers have shown that, Fiber Reinforced Polymer (FRP) composite leaf springs can be successfully used for suspension systems. This paper emphasizes on developing the SHM system for E-Glass/Epoxy FRP composite leaf springs based on strain sensing.

Keywords: Structural health monitoring, Fiber reinforced polymer, Strain-gauge sensors, Composite leaf spring, E-Glass/Epoxy.
Title: Structural Health Monitoring of Fibre Reinforced Polymer Composite Leaf Spring
Author: Ashoka H.K, Channakeshava K.R, Dr.T.Rangaswamy
International Journal of Recent Research in Civil and Mechanical Engineering (IJRRCME)
Paper Publications

Abstract: Passive liquid water recovery from fuel cell effluent can be achieved by designing effective desiccant. Recovered water from desiccant is used for humidification of proton exchange membrane (PEM) to maintain at hydrated state. Proper membrane humidity is crucial to ensure optimal operation of a PEM to generate electricity. In this study a desiccant called water separator is designed, it works without consuming any external energy. The main aim of designing a component is to recover liquid water from hundred percent humidified air (vapour) which is coming out from cathode compartment of fuel stack and it is further used for humidifying the oxidant before entering the stack inlet. The self-sufficient water in vapour is investigated theoretically and experimentally. When the water separator temperature reached the critical point especially in large power applications or long time operation, recovered water was not sufficient for air humidification. On the contrary, it is sufficient while the temperature of water separator was below critical line. The temperature of separator is controlled by providing adequate heat transfer.  The recovered amount of water by condensing the outlet gas or vapour to a proper temperature, easily satisfy required amount for humidification of oxidant at inlet of stack.

Keywords:cell stack, Proton exchange membrane, Humidification, Vapour, Liquid water recovery.
Title:PASSIVE LIQUID WATER RECOVERY FROM FUEL CELL EXHAUST
Author:Anand N N, Dr.M.Raja, Dr.T.Rangaswamy
International Journal of Recent Research in Civil and Mechanical Engineering (IJRRCME)
Paper Publications

Abstract: The AFNOR 15CDV6 steel is high strength steel with relatively low level alloy content. By processing the steel through ESR with inoculation a marginal increase in strength and further increase in ductility and notch toughness can be obtained. The strength of the steel is inadequate for its use in fabrication of rocket motor casing in the Indian Space Programme. By increasing both carbon and chromium content of the AFNOR 15CDV6 steel strength can be increased, primarily as a cost effective for space launch vehicle applications. Welding is a major step in the fabrication of most of the pressure vessels, structures and equipments. Steels with carbon equivalent in excess of 0.40wt% shows a tendency to form martensite on welding, and therefore are considered difficult to weld. This ESR modified 15CDV6 material has a carbon equivalent value of nearly 1.0 that classified it as a very difficult to weld steel. In the present work, ESR modified 15CDV6 material welding was carried out successfully by Auto GTAW as well as Manual GTAW, without preheating. This was carried out by modification of welding parameters, cleaning process, tacking sequence etc. Mechanical Properties of the Weld are meeting requirements.

Title: Welding Development in ESR modified 15CDV6 material
Author: M Chandra Sekhar, D.Srinivasa Rao,  Dasari Ramesh
International Journal of Recent Research in Civil and Mechanical Engineering (IJRRCME)
Paper Publications

Abstract: The use of polymer fiber reinforced composite materials is growing day by day in all types of engineering structures such as aerospace, automotive, aircraft, chemical, constructions etc. because of their tailorable properties. Through these materials are tailorable, improvement in tribological properties is demanded.Keywords:epoxy glass fiber composites, nano nitrile butadiene rubber particles.

Title: EFFECT OF NANO RUBBER ADDITIONS ON WEAR AND MECHANICAL PROPERTIES OF EPOXY GLASS FIBRE COMPOSITES
Author: D.Srinivasarao, M.Amareswari Reddy, M.N.V.Krishna Veni, Sandeep Kumar Mahanti
International Journal of Recent Research in Civil and Mechanical Engineering (IJRRCME)
Paper Publications