Liquid fuel sloshing control of an automotive fuel tank

Abstract

In order to reduce the influence of fuel sloshing on the interior noise of a passenger car, the fuel tank sloshing noise was first evaluated with a subjective evaluation method to determine the driving cycle of the car and the fuel filling percentage of the fuel tank in which the fuel tank sloshing noise is serious, and then two anti-wave boards with different structural characteristics were designed to reduce the fuel sloshing. On this basis, fuel sloshing in the fuel tank equipped with the newly designed and original anti-wave boards was simulated numerically; then, the anti-wave board with the best effect of inhibiting fuel from sloshing was selected based on the numerical results; finally, the anti-sloshing effect of the selected board was evaluated through the car road test. The test results show that the vibration acceleration magnitude at each monitoring point of the tank with the selected anti-wave board is significantly reduced compared with the original fuel tank, which indicates that the selected anti-wave board inhibits fuel from sloshing greatly.

Numerical Study of the Filling Process of a Liquid Hydrogen Storage Tank under Different Sloshing Conditions

“…Dynamic activities in the non-linear regime were the source of sloshing noise generation. Different from the work of Agawane et al [7], in order to reduce the noise impact caused by liquid fuel sloshing inside the tank, He et al [8] carried out related numerical simulation work. They chose to install anti-wave boards in the fuel tank and monitor the vibration acceleration in the fuel tank.…”