Simulation of Sloshing and Ballooning in Fuel Tanks for High Speed Impacts

A fuel tank is one of the most critical components in a vehicle crash because it may link to passenger safety. The effect of fuel pressure on the tank boundary in a dynamic impact condition is constantly being studied both numerically and experimentally. In hard braking conditions with a partially f...

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Veröffentlicht in:SAE transactions 2007-01, Vol.115 (2006 Transactions), p.262-272
Hauptverfasser: Tang, Ben-Ren, Guha, Sarba, Tyan, Tau, Doong, Jiamaw, Shaner, Len, Bhalsod, Dilip
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container_end_page 272
container_issue 2006 Transactions
container_start_page 262
container_title SAE transactions
container_volume 115
creator Tang, Ben-Ren
Guha, Sarba
Tyan, Tau
Doong, Jiamaw
Shaner, Len
Bhalsod, Dilip
description A fuel tank is one of the most critical components in a vehicle crash because it may link to passenger safety. The effect of fuel pressure on the tank boundary in a dynamic impact condition is constantly being studied both numerically and experimentally. In hard braking conditions with a partially filled tank, the fuel slams on to the front wall of the tank. During high-speed impact on the other hand, there is significant bulging of the fuel tank if it is nearly full, while vortices and cavities may form with partial filling. In these cases, the internal fuel and vapor pressure distribution can change; thus, affecting the distribution of stress on the tank. The objective of this paper is to study these phenomena using the currently available ALE (Arbitrary Lagrangian Eulerian) methodology and thus improve fuel tank design by a direct application of CAE. To help understand the responses of the fuel, vapor and tank under high speed impact condition, contour plots, section analysis, as well as three dimensional deformation modes of fuel and tank were utilized to analyze the simulation results.
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title Simulation of Sloshing and Ballooning in Fuel Tanks for High Speed Impacts
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