The effect of fluid motion in external fuel tanks on vehicle dynamics

Thesis Type: Postgraduate

Institution Of The Thesis: Bursa Uludağ University, Fen Bilimleri Enstitüsü, Turkey

Approval Date: 2004

Thesis Language: Turkish

Student: Murat Reis

Supervisor: YAŞAR PALA


In this study, it was investigated how the fluid motion in external fuel tanks effect the dynamics of breaking system. The unconstrained motion of fluid called sloshing causes high dynamic loads especially in highly accelerated motion of massive bodies. These dynamic loads effect the dynamic behavior of truck. Similarly, the reaction of truck affects the fluid motion. The interaction between fluid and truck affects the whole system dynamics. The breaking performance of truck carrying various plenitude ratio of fluid cargo was investigated using simulation techniques via MSC.Dytran and the swinging pendulum method. The kinetic coefficient of friction is assumed to be constant. The effect of fluid motion on the system dynamic was compared for various plenitude ratios, and the efficiency of pendulum method was compared. It was concluded that the effect of fluid motion on the truck performance in the case of %50 plentitude ratio is higher than that of. The pendulum method is useful under these conditions the plenitude of under %50 and acceleration about half of the gravity.