Virtual prototype-based suspension system control simulation method of four-axle heavy truck
A virtual prototype and suspension system technology, applied in the field of research, can solve problems such as complex structure, complex strategy algorithm, and heavy truck suspension system that have not been reported.
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Embodiment 1
[0069] A control simulation method for suspension system of four-axle heavy truck based on virtual prototype:
[0070] The first step is to build a virtual prototype model of a four-axle heavy goods vehicle based on ADAMS.
[0071] ADAMS (Automatic Dynamic Analysis of Mechanical Systems) is a pillar product of MDI Corporation in the United States. It is a recognized excellent mechanical system simulation (MMS) software and enjoys a high reputation in the world. In ADAMS, the multibody system dynamic equation of the vehicle is obtained by the Lagrangian multiplier method (see formula 1), and is solved by the built-in solver.
[0072] d dt ( ∂ L ∂ q · i ) - ∂ L ∂ ...
Embodiment 2 4
[0132] Road friendliness and ride comfort analysis of embodiment 2 four-axle heavy goods vehicle
[0133]Based on virtual prototyping technology, a well-known domestic brand BJ3311 8×4 heavy-duty dump truck was used as a prototype to build a vehicle-road ADAMS model, and the steering shaft and drive shaft suspension system of the truck were semi-actively simulated using ADAMS and MATLAB co-simulation , Actively improve the ceiling control, and analyze the simulation results based on the orthogonal test, so as to determine the control parameters that optimize the comprehensive performance of the road friendliness and ride comfort of the four-axle heavy truck.
[0134] 1) Construction of vehicle virtual prototype model.
[0135] The car is a four-axle heavy-duty truck, the front two axles are steering axles, and the rear two axles are drive axles (double coupling). The steering shaft adopts ordinary steel plate suspension, the drive shaft adopts balance shaft balance suspension...
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