Modal Analysis of Transient Liquid Sloshing in Partially-Filled Tanks

Zheng, Xin; Li, Xian Sheng; Ren, Yuan; Zhu, Changfeng

doi:10.4028/www.scientific.net/amm.526.127

Cited by 4 publications

(2 citation statements)

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“…For each tank, liquid fill percentage changes from 0.4 to 0.9 with a step size of 0.1. By equation (37), b p and m p can be obtained, as shown in Figures 23 and 24.…”

Section: Equivalent Mechanical Model For Liquid Sloshingmentioning

confidence: 99%

“…Therefore, the first sloshing modal is the most important one. More details about the dynamics of liquid sloshing in partially filled tanks without or with baffles can be found in Zheng et al [37][38][39] Equivalent mechanical model for liquid sloshing Dynamic analysis of liquid sloshing in partially filled tanks showed that liquid sloshing approximates to linear oscillation when external excitation is quite small. Besides, the modal analysis of liquid sloshing reveals that the first modal is the most important one to reflect the dynamics of liquid sloshing.…”

Section: Dynamic Analysis Of Liquid Sloshing In Partially Filled Tanksmentioning

confidence: 99%

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Rollover stability analysis of tank vehicles based on the solution of liquid sloshing in partially filled tanks

Zheng

Zhang

Ren

et al. 2017

Advances in Mechanical Engineering

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Tank vehicles have quite poor roll stability in driving. Therefore, the purpose of this article is to investigate tankers' roll stability by vehicle dynamic modeling. As a fluid-solid coupling multi-body system, tank vehicle's dynamic modeling must take liquid sloshing into account. The conventional solution on liquid sloshing by hydrodynamics is difficult and time-consuming, and the modeling of tankers obtained by this method was a distributed parameter system with infinite degree of freedoms. It was quite difficult and complicated to analyze tankers' dynamic features and to design active control system by the distributed parameter system. Therefore, three different methods to describe liquid sloshing effects in partially filled tanks with elliptical cross sections were proposed in this article, which are the estimation of liquid sloshing, the improved estimation of liquid sloshing, and the modeling of equivalent mechanical model for liquid sloshing. Then, the dynamic modeling of tank vehicles was commenced based on that. It was found out that the roll stability performance of tank vehicles obtained by different models differs with each other. The quasi-static model obtained by the estimation of liquid sloshing could get an estimation on tanker's rollover threshold quickly and easily, but it is with poor accuracy. The improved quasi-static model obtianed by the improved estimation of liquid sloshing could give a more accurate result on tanker's rollover threshold, the solution is also easily and quickly. Rollover analysis based on equivalent mechanical model of liquid sloshing could reflect vehicle's dynamics and is with high accuracy, but the process is of great complexity.

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“…For each tank, liquid fill percentage changes from 0.4 to 0.9 with a step size of 0.1. By equation (37), b p and m p can be obtained, as shown in Figures 23 and 24.…”

Section: Equivalent Mechanical Model For Liquid Sloshingmentioning

confidence: 99%

Section: Dynamic Analysis Of Liquid Sloshing In Partially Filled Tanksmentioning

confidence: 99%