This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
DFD Stratagem Investigation on Suspension Subframe Durability Test with Spindle Coupled Road Test Simulator
Technical Paper
2020-01-0992
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
In order to replicate the vehicle chassis proving ground (PG) durability test on the laboratory half vehicle spindle coupled Road Test Simulator (RTS), a drive file which can excite the actuators of the RTS to duplicate the chassis component strain state need to be developed. Traditionally the Drive File Development (DFD) aims to match the spindle forces and moments in addition with some supplemental channels such as the suspension link axial forces and the suspension travels. However the suspension subframe which is connected to the vehicle body achieves the equilibrium state with the inertia force applied on the vehicle body at arbitrary time when the vehicle is running on the PG. Suspension subframes mounted on the fixture of the RTS experience reaction forces from a fixed static boundary. This boundary condition discrepancy between the vehicle PG test and the laboratory RTS test may particularly lead to a different strain state on the suspension subframe. In this paper, the impact of the different boundary conditions on the chassis structures’ strain state is investigated both physically and virtually. It’s proved that the subframe strain state has a significant difference from full vehicle PG test to the half vehicle spindle coupled RTS test using the conventional DFD stratagem. Thus, a special DFD stratagem which employs the subframe strain road load data is then established and validated on the 2 corner MTS 329 RTS system with a front suspension assembly. It’s concluded that the suspension subframe strain state can be well retained on the RTS compared to the PG test by using this special DFD stratagem. In other words, the durability validation of the suspension subframe can be implemented much more accurately on the laboratory RTS system with this special DFD stratagem.
Recommended Content
Authors
Citation
Gao, J., Guo, M., Zhang, X., and Yu, X., "DFD Stratagem Investigation on Suspension Subframe Durability Test with Spindle Coupled Road Test Simulator," SAE Technical Paper 2020-01-0992, 2020, https://doi.org/10.4271/2020-01-0992.Also In
References
- Dodds , C. and Plummer , A. Laboratory Road Simulation for Full Vehicle Testing: A Review SAE Technical Paper 2001-26-0047 2001 https://doi.org/10.4271/2001-26-0047
- Azrulhisham , E. , Asri , Y. , Dzuraidah , A. , Nik , N. et al. Application of Road Simulator Service Loads in Automotive Component Durability Assessment The Open Industrial & Manufacturing Engineering Journal 4 1 1 7 2011 10.2174/1874152501104010001
- Sang-Gun , J. , Shawn , Y. , and Christoph , L. Virtual Testing with a Virtual Spindle Coupled Road Simulator and Remote Parameter Control MSC. Software 2003 Virtual Product Development Conference USA, October 13 15 2003
- Chindamo , D. , Gadola , M. , and Marchesin , F. Reproduction of Real-World Road Profiles on a Four-Poster Rig for Indoor Vehicle Chassis and Suspension Durability Testing Advances in Mechanical Engineering 9 8 1 10 2017 10.1177/1687814017726004
- 2014
- Wu , V. , Leblanc , P. , Peticca , G. , Barnett , G. et al. Spindle Vertical Acceleration Control in Fixed-Reacted Road Test Simulations SAE Technical Paper 2010-01-0283 2010 https://doi.org/10.4271/2010-01-0283
- Xu , G. , Yan , D. , and Zhang , R. The Effect of Fixture on the Testing Accuracy in the Spindle-Coupled Road Simulation Test SAE Int. J. Veh. Dyn., Stab., and NVH 2 4 311 324 2018 https://doi.org/10.4271/2018-01-0130
- Devarajan , G. and Dodds , C. Suspension Testing using Wheel Forces on a 3 DOF Road Load Simulator SAE Technical Paper 2008-01-0223 2008 https://doi.org/10.4271/2008-01-0223
- Bhattacharya , A. , Malik , N. , and Jindal , S. Optimization of Simulation Channels for Inverse FRF Calculation on 6-Axis Road Load Simulator: An Experimental Approach SAE Technical Paper 2017-26-0303 2017 https://doi.org/10.4271/2017-26-0303
- Selvaraj , A. , Rajappan , D. , William , B. , Rajaraman , M. et al. Field Failure Simulation of a Non-reactive Suspension Tie Rod for Heavy Commercial Vehicle Using a Road Simulator SAE Technical Paper 2019-26-0350 2019 https://doi.org/10.4271/2019-26-0350
- 2018