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Koona, Ramji
- Dynamic Analysis of Indian Railway Integral Coach Factory Bogie
Abstract Views :289 |
PDF Views:156
Authors
Affiliations
1 Mech. Engg. Dept., Aditya Institute of Technology and Management, Tekkali, IN
2 Mech. Engg. Dept., Andhra University, College of Engineering, Visakhapatnam, IN
3 Mech. Engg. Dept., Maharishi Markandeshwar University, Mullana, IN
1 Mech. Engg. Dept., Aditya Institute of Technology and Management, Tekkali, IN
2 Mech. Engg. Dept., Andhra University, College of Engineering, Visakhapatnam, IN
3 Mech. Engg. Dept., Maharishi Markandeshwar University, Mullana, IN
Source
International Journal of Vehicle Structures and Systems, Vol 7, No 1 (2015), Pagination: 16-20Abstract
Dynamic response of railway coach is a key aspect in the design of coach. Indian railway sleeper and 3 tier AC coaches consist of two railway bogies, where the central distance of the center of gravity between the bogies is 14.9 m. Analysis of railway bogie forms a basis for investigating the behaviour of the coach as a whole. The current work carried out is, vehicle dynamic response in terms of Eigen frequency modal analysis and harmonic analysis of a Indian railway 6 Ton Integral Coach Factory (ICF) bogie using finite element (FE) method. The entire bogie model is discretized using solid92 tetrahedral elements. The primary and secondary suspension systems are modelled as COMBIN14 elements in the FE model of the bogie. Modal analysis of the bogie model using Block Lanczos method in ANSYS is carried out to extract first few natural modes of vibration of the bogie. The roll mode frequency attained in Modal analysis is in good agreement with the fundamental frequency calculated analytically. Sinusoidal excitation is fed as input to bottom wheel points to analyse the harmonic response of the bogie in terms of displacement at different salient locations. Harmonic response results reveal that the bogie left and right locations are more vulnerable than the locations near the centre of gravity of the bogie.Keywords
Dynamic Response, Modal Analysis, Harmonic Analysis, Finite Element Model, ANSYS.Full Text
- Stress and Vibrational Analysis of an Indian Railway RCF Bogie
Abstract Views :277 |
PDF Views:177
Authors
Affiliations
1 Mech. Engg. Dept., Maharishi Markandeshwar (Deemed to be University) Mullana, IN
2 Mech. Engg. Dept., AITAM, Tekkali, Andhra Pradesh, IN
3 Mech. Engg. Dept., Andhra University College of Engg., Visakhapatnam, Andhra Pradesh, IN
1 Mech. Engg. Dept., Maharishi Markandeshwar (Deemed to be University) Mullana, IN
2 Mech. Engg. Dept., AITAM, Tekkali, Andhra Pradesh, IN
3 Mech. Engg. Dept., Andhra University College of Engg., Visakhapatnam, Andhra Pradesh, IN
Source
International Journal of Vehicle Structures and Systems, Vol 9, No 5 (2017), Pagination: 296-302Abstract
In the present work, static and dynamic finite element analyses are carried out on an Indian railway 6 ton RCF sleeper bogie. The geometrical CAD model of railway vehicle has been developed in UG-NX7.5 and has been exported to ANSYS12.1 package where finite element modelling and the required static and dynamic analyses have been performed. For dynamic response, modal, harmonic and transient dynamic analyses are carried out. First few natural modes of vibration of the bogie are extracted in Eigen frequency analysis and it is observed that the roll mode attained at a frequency which is well matched with the fundamental natural frequency calculated analytically. The harmonic peaks obtained are matching well with the natural frequencies obtained in modal analysis. Response to the ground excitation when the bogie passes over a bump is simulated in transient analysis.Keywords
Railway Bogie, Static Analysis, Transient Analysis, Finite Element Modelling, Laden Sleeper, Unladen Sleeper.Full Text
- A Review on Dynamic Analysis of Rail Vehicle Coach
Abstract Views :364 |
PDF Views:221
Authors
Affiliations
1 Mechanical Engineering Dept., AITAM, Tekkali, Andhra Pradesh, IN
2 Mechanical Engineering Department, Andhra University College of Engineering, Andhra Pradesh, IN
3 Dept. of Mech. Engg, Amity School of Engg. and Tech., Amity University, Uttar Pradesh, Noida, IN
4 Mechanical Engineering Department, Maharishi Markandeshwar (Deemed to be University), Mullana, IN
1 Mechanical Engineering Dept., AITAM, Tekkali, Andhra Pradesh, IN
2 Mechanical Engineering Department, Andhra University College of Engineering, Andhra Pradesh, IN
3 Dept. of Mech. Engg, Amity School of Engg. and Tech., Amity University, Uttar Pradesh, Noida, IN
4 Mechanical Engineering Department, Maharishi Markandeshwar (Deemed to be University), Mullana, IN
Source
International Journal of Vehicle Structures and Systems, Vol 10, No 3 (2018), Pagination: 204-211Abstract
Railway vehicle is one of the rigorously developing passenger and goods carrier in the past few centuries. Dynamic behaviour of the railway coach is a vital aspect in its design and also in terms of passenger safety and ride comfort. Dynamic response includes both deterministic and probabilistic analyses. Modal, harmonic and transient dynamic analysis is part of deterministic analyses, whereas random response using spectrum methods and power spectral density (PSD) is a probabilistic approach. This paper is an attempt to cover various modelling and simulation methods of the railway bogie and coach adopted by various researchers to understand the dynamic behaviour of the railway coach. Further, the research findings of various dynamic parameters obtained theoretically and practically against different inputs like sinusoidal and random inputs to the car body have been discussed. This forms a basis in understanding the development of railway coach design when one is interested in carrying out free and forced vibration analysis on the coach, as well as assists to optimize various design parameters of components like bogie, car body and suspension elements in terms of vehicle dynamics.Keywords
Railway Coach, Review, Dynamic Analysis, Modelling, Simulation, Wheel-Rail System.Full Text
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