INSPIRING FUTURES

Iterative control in automotive testing.

Hay, Neil and Roberts, David E (2007) Iterative control in automotive testing. Proceedings of the Institution of Mechanical Engineers Part I Journal of Systems and Control Engineering, 221 (2). pp. 223-233. ISSN 0959 6518

Full text not available from this repository.

Abstract/Description

Road simulator test rigs investigate both the durability and the squeak and rattle characteristics of vehicle structures. The test specimens are the whole vehicle or a sub-structure taken from the vehicle. In laboratory simulation tests, random time series of strain, displacement, or acceleration, which represent service conditions, are reproduced at specified locations within the structure. These responses are formulated from measurements made on the road or at a specialized proving ground. The premise is that reproducing these responses recreates service strain throughout the structure.

The test rigs are normally driven by hydraulics and form multiple channel non-linear dynamic systems. Time series drive files that reproduce the strain are generated to excite the test rig. These are determined using an iterative procedure that overcomes the deficiencies of the hydraulics, channel interaction, and non-linearity in the system. The current paper outlines a new iterative algorithm with better convergence than the commonly used iterative algorithm which does not always converge. This new iterative algorithm is demonstrated in numerical simulations that represent typical automotive engineering systems.

Item Type: Article
Print ISSN: 0959 6518
Uncontrolled Keywords: Road simulator; Test-rig; Time series drive files; Non-linear dynamic system; Iterative algorithm; Strain measurements; Automotive engineering;
University Divisions/Research Centres: Faculty of Engineering, Computing and Creative Industries > School of Engineering and the Built Environment
Dewey Decimal Subjects: 500 Science > 510 Mathematics
600 Technology > 620 Engineering > 629 Vehicle engineering
Library of Congress Subjects: Q Science > QA Mathematics
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Item ID: 1860
Depositing User: RAE Import
Date Deposited: 07 Apr 2008 16:56
Last Modified: 18 Feb 2013 16:17
URI: http://researchrepository.napier.ac.uk/id/eprint/1860

Actions (login required)

View Item

Edinburgh Napier University is a registered Scottish charity. Registration number SC018373