Patent ID: 11905033
Assignee: GOODRICH CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 3:
4. The hard-landing detection system of claim 1, wherein determining whether the landing event is hard comprises:
calculating, by the processor, an applied torque based on an acceleration of the wheel, an inertia of a rotating mass, and an unloaded tire radius;
calculating, by the processor, a total torque based on the applied torque, a shock strut vertical load, and a bearing friction coefficient;
calculating, by the processor, a tire drag force based on the total torque and a loaded tire radius;
calculating, by the processor an axle drag force based on the tire drag force; and
comparing, by the processor, the axle drag force to a predetermined maximum axle drag load for a corresponding vertical load.