Title: Investigation on the equivalent mechanical longitudinal fluid sloshing model for a partially filled tank vehicle

Authors: Xiujian Yang; Chuqi Feng

Addresses: Faculty of Transportation Engineering, Kunming University of Science and Technology, No. 727 South Jingming Rd., Chenggong District, Kunming, 650500, China ' Faculty of Transportation Engineering, Kunming University of Science and Technology, No. 727 South Jingming Rd., Chenggong District, Kunming, 650500, China

Abstract: This paper aims to investigate the equivalent mechanical model of longitudinal fluid sloshing for a partially filled tank vehicle. A one-degree-of-freedom (1DOF) mass-spring-damping (MSD) equivalent mechanical model proposed in the literature is first evaluated. To improve the precision of the MSD model, two 2DOF models those are the serial 2DOF (2DOF-S) model and the parallel 2DOF (2DOF-P) model, and a hybrid 3DOF (3DOF-H) model have been proposed, formulated and evaluated. Comparisons demonstrate that the 3DOF-H model can provide rather satisfying precision in broad ranges of tank ellipticity and fill level. Finally, the proposed 3DOF-H MSD sloshing model is further evaluated from the viewpoint of vehicle dynamics response. It is revealed that it is easy to integrate the 3DOF-H model with vehicle dynamics to build a fluid tank vehicle model which can reflect the basic dynamics property of a tank vehicle.

Keywords: tank vehicle; vehicle dynamics; fluid sloshing dynamics; equivalent mechanical sloshing model; computational fluid dynamics; genetic algorithm.

DOI: 10.1504/IJVP.2020.106986

International Journal of Vehicle Performance, 2020 Vol.6 No.2, pp.200 - 233

Received: 03 Jun 2019
Accepted: 22 Nov 2019

Published online: 26 Apr 2020 *

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