SA E TECHNICAL PAPER SERIES Field Testing of a Tank Truck and Study of Fluid Slosh Subhash Rakheja and S. Sankar CONCAVE Research Centre Concordia University Montreal R. Ranganathan University of Missouri Columbia J.R. Billing and W. Mercer Ontario Ministry of Transportation Downsview, Ontario The Engineering Society ** =For Advancing Mobility and sea air and Space, International Truck & Bus Meeting and Exposition Chicago, Illinois November 18-21,1991 400 COMMONWEALTH DRIVE, WARRENDALE, PA 15096-0001 U.S.A. Downloaded from SAE International by University of Leeds, Sunday, August 12, 2018The appearance of the ISSN code at the bottom of this page indicates SAE's consent that copies of the paper may be made for personal or internal use of specific clients. Thisconsent isgivenon the condition, however, thatthecopier pay a $5.00 perarticle copy fee through the Copyright Clearance Center, Inc. Operations Center, 27 Congress St., Salem, MA 01 970 for copying beyond that permitted by Sections 107 or 108 of the U.S. Copyright Law. This consent does not extend to other kinds of copying such as copying for general distribution, for advertising or promotional purposes, for creating new collective works, or for resale. SAE routinely stocks printed papers for a period of three years following date of publication. Direct your orders to SAE Customer Service Department. To obtain quantity reprint rates, permission to reprint atechnical paper or permission to use copyrighted SAE publications in other works, contact the SAE Publications Group. *I1 SAE papers. stamrrds. and .Wezted 00*S are ahsmnsd and ~nQ,xed m rtu SAE Globrl MdnIltv DarAY) No part of this publication may by reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. ISSN 01 48-7191 Copyright 1991 Society of Autornotlve Engineers, Inc. Positions and opinions advanced in this paper are those of the author(s) and not necessarily those of SAE. The author is solely responsible for the content of the paper. A process is available by which discussions will be printed with the paper if it is published in SAE transactions. For permission to publish this paper in full or in part, contact the SAE Publications Division. Persons wishing to submit papers to be considered for presentation or publication through SAE should send the manuscript or a 300 word abstract of a proposed manuscript to: Secretary, Engineering Activity Board, SAE. Irinted in USA Downloaded from SAE International by University of Leeds, Sunday, August 12, 2018Field Testing ABSTRACT Dynamic fluid slosh and its influence on the dynamic roll stability of a partially filled tank truck has been investigated through a field test program undertaken jointly by the CONCAVE Research Centre and Transportation Technology and Energy Branch of Ontario Ministry of Transportation. The paper describes the test methodology, instrumentation, data acquisition, fluid slosh behaviour, and its influence on the directional response of the tank truck. The data acquired during different directional maneuvers is analyzed to highlight the fluid slosh and its impact on the dynamic load transfer and roll stability of the vehicle. The magnitude of dynamic load transfer, derived from the video records of the dynamic fluid movement, is presented and discussed for various tank fill levels and directional maneuvers. The test results revealed that the magnitude of dynamic fluid slosh is strongly related to the vehicle speed, lateral and longitudinal acceleration, and the fill level. The field measured directional response data is compared to the results derived from the simulation software to demonstrate the validity of the analytical models. The fluid motion viewed during the test maneuvers revealed that the dynamic load transfer caused by fluid slosh can be estimated accurately using steady-state fluid dynam