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Ramachandran, T.
- Multibody Modelling of Engine and Minimization of Engine Mount Vibration Using Ant Colony Algorithm Optimization
Abstract Views :249 |
PDF Views:131
Authors
Affiliations
1 Dept. of Mech. Engg., PSNA College of Engineering and Technology, Dindigul, IN
2 Dept. of Mech. Engg., SBM College of Engineering and Technology, Dindigul, IN
1 Dept. of Mech. Engg., PSNA College of Engineering and Technology, Dindigul, IN
2 Dept. of Mech. Engg., SBM College of Engineering and Technology, Dindigul, IN
Source
International Journal of Vehicle Structures and Systems, Vol 7, No 1 (2015), Pagination: 10-15Abstract
In this research work, multibody modelling of engine is carried out and the elastomeric mounts are used to isolate the vibration caused in the diesel engine during its running. Vibration in the engine is measured as displacement at the engine mounts and the reduction of vibration displacement provides both the passive isolation and balancing of unbalanced forces in the engine. The elastomeric mounts not only provide the passive isolation but also the supplement the force balancing system. The engine dynamic vibration force components like inertial forces by moving components and piston slap is modelled and resolved in the Cartesian coordinates. The set of equations arrived are solved to find the displacement at the mounts using Runge-Kutta method for a specific period. The mount location and orientation are used as the optimizing parameters that minimize the mount displacement. The optimization is carried out using one of the most promising heuristic optimization methods called ant colony algorithm (ACA). The convergence and least possible results of the ACA based optimization are obtained for different control parameters of the ACA.Keywords
Elastomeric Mount, Ant Colony Algorithm, Unbalanced Forces, Slap Forces, Equation of Motion.Full Text
- Water Quality Index of River Noyyal at Tirupur, Tamil Nadu, India
Abstract Views :139 |
PDF Views:1
Authors
Affiliations
1 Department of Chemistry, V.L.B. Janakiammal College of Engineering and Technology, Coimbatore-641042, T.N., IN
2 Department of Chemistry, Amrita Institute of Technology, Coimbatore-641042, T.N., IN
1 Department of Chemistry, V.L.B. Janakiammal College of Engineering and Technology, Coimbatore-641042, T.N., IN
2 Department of Chemistry, Amrita Institute of Technology, Coimbatore-641042, T.N., IN
Source
Nature Environment and Pollution Technology, Vol 6, No 1 (2007), Pagination: 51-54Abstract
The study on some physico-Chemical and biological characteristics of Noyyal river at Tirupur, Coimbatore district was carried out. The sampling points were selected on the basis of their importance. Most of the drainage system of Tirupur carrying dyeing waste, industrial effluents and sewage, are allowed to mix with river water in and around the city. Water Quality Index (WQI) for Noyyal river at its source and before and after Tirupur has been calculated. For surface water, determination of water quality index becomes essential and prerequisite. Water quality index provides a system for rating water quality in terms of index numbers that offer promise as a useful tool in the administration of water pollution abatement.Full Text
- Electro Oxidation of Methanol on Ni/Ni-Co Coated SS Mesh Electrode
Abstract Views :199 |
PDF Views:0
Authors
Affiliations
1 Department of Sciences, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Ettimadai - 641112, Coimbatore, IN
1 Department of Sciences, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Ettimadai - 641112, Coimbatore, IN
Source
Indian Journal of Science and Technology, Vol 9, No 1 (2016), Pagination:Abstract
In this work, the oxidation of methanol was carried out using Ni and Ni-Co alloy electrodeposited on stainless steel mesh substrate with a view to replace expensive and sensitive platinum and platinum alloy catalysts. The performance of electrode was assessed through cyclic voltammetry in alkaline media. The operating conditions of the electrode were optimized.
Keywords
Alkaline Medium, Catalyst, Electro Oxidation, Methanol, Ni/Ni-Co AlloyFull Text
- Fuzzy Simpson's 3/8th Rule for Integration of Fuzzy Functions
Abstract Views :241 |
PDF Views:1
Authors
Source
The Journal of the Indian Mathematical Society, Vol 84, No 1-2 (2017), Pagination: 81-89Abstract
In this paper,we propose a fuzzy Simpson's 3/8th rule with positive coeffcient for solving fuzzy integral based on four equally spaced points. In this way a new direction for the numerical solution of fuzzy integral is suggested. This method is illustrated by solving some examples and comparison made with exact solution and are presented.Keywords
Simpson's 3/8th Rule, Fuzzy Integral, Numerical Solution.
References
- N. Ahmady, A Fuzzy Newton-Cotes method for Integration of Fuzzy Functions, Journal of Fuzzy Set Valued Analysis, No. 2 (2015) 171-178.
- T. Allahviranloo, Newton Cot's methods for integration of fuzzy functions, Applied Mathematics and Computation, 166 (2005) 339-348.
- T. Allahviranloo, Romberg integration of fuzzy functions, Applied Mathematics and Computation, 168 (2005) 866-876.
- T. Allahviranloo, N. Ahmady, E. Ahmady, Numerical solution of fuzzy di erential equa- tions by Predictor-Corrector method, Information Sciences, 177 (2007) 1633-1647.
- B. Bede, S.G. Gal, Quadrature rules for integrals of Fuzzy-number-valued functions, Fuzzy Sets and Systems, 145 (2004) 359-380.
- B. Ghazanfari, A. Shakerami, Numerical solutions of Fuzzy di erential equations by extended Runge-Kutta-like formulae of order-4, Fuzzy sets and systems, 189 (2012) 74-91.
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- L.A. Zadeh, The concept of a linguistic variable and its application to approximate reasoning, Information Sciences, 8 (1975) 199-249.
- Vibration Characteristics of Al6061-SiC Metal Matrix Composite based Rubber Mount for I.C Engine Chassis
Abstract Views :216 |
PDF Views:120
Authors
Affiliations
1 Dept. of Mech. Engg., Malla Reddy Engg., College, Secunderabad, Telangana, IN
2 Dept. of Mech. Engg., PSNA College of Engg., and Tech., Dindigul, Tamilnadu, IN
1 Dept. of Mech. Engg., Malla Reddy Engg., College, Secunderabad, Telangana, IN
2 Dept. of Mech. Engg., PSNA College of Engg., and Tech., Dindigul, Tamilnadu, IN
Source
International Journal of Vehicle Structures and Systems, Vol 10, No 3 (2018), Pagination: 215-219Abstract
Vibrations are found to be dangerous and reduce the life and reliability of the vehicle. The studies were carried out by many researchers to stiff the structures by increasing the wall thickness of the plates, rubber and to minimize the vibration by increasing the damping coefficient of the rubber materials. The conventional materials indicate an improvement in stiffness, but not satisfying the requirements of the engine vibration at different speed and load standards and also increased the mass of the structure. This research on the engine mount vibration isolation aims at developing an alternative material for the structures which exhibit good damping and stiffness characteristics. In terms of properties such as chemical resistance, ease of production, high strength to weight ratio and damping, composite materials are increasingly used in many engineering application where the vibration is predominant. In this paper, the steel plates are replaced by Al6061-SiC Metal Matrix Composites (MMC) and studies are carried out on the engine mount made of Al6061 MMC structural material and integrated with rubber. The static and dynamic properties of the Al6061MMC-rubber mounts are determined using experimental investigations. The harmonic analysis is also carried out to test the damping characteristics of the mounts.Keywords
Al6061-SiC Rubber Mount, Damping, Mechanical Properties, Vibration Displacement, Vibration Acceleration.Full Text
References
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- S. Palli, R.C. Sharma and P.P.D. Rao. 2017. Dynamic behaviour of a 7 DoF passenger car model, Int. J. Vehicle Structures & Systems, 9(1), 57-63. https://doi.org/10.4273/ijvss.9.1.12.
- F. Wang and S. Duan. 2011. Fault diagnosis of diesel engine using vibration signals. in: Chen R. (eds) Intelligent computing and information science, Communications in Comp. and Information Sci., 135.
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- T. Ramachandran and K.P. Padmanaban. 2015. Multibody modelling of engine and minimization of engine mount vibration using ant colony algorithm optimization, Int. J. Vehicle Structures & Systems, 7(1), 10-15. https://doi.org/10.4273/ijvss.7.1.02.
- S.K. Sharma, R.C. Sharma, A. Kumar and S. Palli. 2015. Challenges in rail vehicle-track modeling and simulation, Int. J. Vehicle Structures & Systems, 7(1), 1-9. https://doi.org/10.4273/ijvss.7.1.01.
- R. Kumar, M.P. Garg and R.C. Sharma. 2012. Vibration analysis of radial drilling machine structure using finite element method, Adv. Materials Res., 472, 2717-2721. http://dx.doi.org/10.4028/www.scientific.net/AMR.472475.2717.
- L.R. Wang, Z.H. Lu and I. Hagiwara 2010. Analytical analysis approach to non-linear dynamic characteristics of hydraulically damped rubber mount of vehicle engine, J. Non-Linear Dynamics, 61, 251-264.
- S. Jeyakumar, K. Marimuthu and T. Ramachandran. 2013. Prediction of cutting force, tool wear and surface roughness of Al6061/SiC composite for end milling operations using RSM, J. Mech., Sci., & Tech., 27 (9), 2813-2822. https://doi.org/10.1007/s12206-013-0729-z.
- S. Naher, D. Brabazon and L. Looney. 2004. Development and assessment of a new quick quench stir caster design for the production of metal matrix composites, J. Materials Proc. Tech., 166, 430-439. https://doi.org/10.1016/j.jmatprotec.2004.09.043.
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- T. Ramachandran and K.P. Padmanaban. 2015. Experimental investigation of static and dynamic properties of steel-rubber, cast iron-rubber and epoxy granite-rubber as I.C engine mount, Trans. Indian Institute of Metals 68 (1), 83-86. https://doi.org/10.1007/s12666-015-0612-y