Accurate measurements of forces and moments imparted by the fuel tank on the aircraft structure during flight helped in development of flight control laws.
Key Engineering Solutions
Solutions
Timetooth performed detailed FEM modeling and analysed the forces and moments on the aircraft structure, dynamic stresses on the tank walls and the slosh frequency. Advanced engineering was employed by our team to study the interaction of sloshing with composite materials. As a result of their lightweight and greater fuel capacity, composite materials are used in aircraft fuel tanks. ALE (Arbitrary Lagrangian Eulerian) approach is applied for modeling the fluid-solid interaction with grid velocity enabled. Composite material layers are modeled using a complex formulation.
The dynamic mass distribution inside the fuel tank is studied for designing baffles to keep track of the center of gravity shift in flight. Critical regions were identified by studying stress and strain distribution on the composite and metal tank walls. Accurate measurements of forces and moments imparted by the fuel tank on the aircraft structure during flight helped in development of flight control laws.
