This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Study of effects of damper oil volume lag on Hydrogas Suspension used in Armoured Fighting Vehicle
Technical Paper
2005-26-343
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Studies on Hydrogas suspension systems have invariably modeled the damper element as a simple velocity co-efficient which is a constant in a passive suspension and may be varied for a semi-active suspension. This model is valid for light vehicles where suspension forces are moderate. In the case of heavy Armoured Fighting vehicles, the Hydrogas suspension units are subjected to huge suspension forces, under which the oil in the damper element is likely to undergo compression and the volume loss would result in a lagging effect manifesting as an unexpected deterioration in performance under random road input. In this paper, the state variable model of a passive suspension system with damper oil volume lag is developed. The frequency response characteristics of the models with and without volume lag is discussed. It is shown that the oil volume lag results in a under-damped response. The response of the system to a random ground excitation for different oil volume lag constants is simulated and the tolerable limit is inferred.
Authors
- Swarna Ramesh - Combat Vehicles Research and Development Establishment, Avadi, Chennai- 600 054. India
- S Sundaresh - Combat Vehicles Research and Development Establishment, Avadi, Chennai- 600 054. India
- M Singaperumal - Precision Engineering and Instrumentation Lab, Dept of Mechanical Engineering, Indian Institute of Technology Madras Chennai 600 036, India
Citation
Ramesh, S., Sundaresh, S., and Singaperumal, M., "Study of effects of damper oil volume lag on Hydrogas Suspension used in Armoured Fighting Vehicle," SAE Technical Paper 2005-26-343, 2005, https://doi.org/10.4271/2005-26-343.Also In
References
- Military Vehicle Technology II Royal Military College of Science, Cranfield University United Kingdom
- Time delay in a semi-active damper: modeling the by-pass valve Janse Van Rensburg N. Steyn J.L. Els P.S. Journal of Terramechanics 39 2002 35 45