Commercial vehicle steering axle, vehicle frame and connecting piece dynamic simulation device

Abstract

The invention provides a commercial vehicle steering axle, vehicle frame and connecting piece dynamic simulation device. The dynamic simulation device comprises a front axle model and a rear axle model, and also comprises a tyre and shock absorber dynamic model, a front axle and connecting piece kinematic pair model, a front axle tyre and road surface connection model and a front axle power assembly and steering straight pull bar model; the tyre and shock absorber dynamic model comprises a right front tyre, a right front shock absorber, a left front shock absorber and a left front tyre, the right front tyre is connected with the right front shock absorber, and the left front shock absorber is connected with the left front tyre; the tyre and shock absorber dynamic model is used for simulating the dynamic relationship between the tyre and the shock absorber; the front axle and connecting piece kinematic pair model is used for simulating the connection and dynamic effect of the front axle and connecting piece kinematic pair; the front axle tyre and road surface connection model is used for simulating the driving and friction effect between the front axle tyre and the road surface; and the front axle power assembly and steering straight pull bar model is used for simulating the dynamic relationship between the front axle power assembly and the steering straight pull bar.

Description

technical field [0001] The invention belongs to the field of automobile testing, and in particular relates to a commercial vehicle steering axle, vehicle frame and dynamics simulation device for connecting parts. Background technique [0002] At this stage, the vehicle dynamics modeling method for commercial vehicles is basically based on the invariant theory for rigid body dynamics modeling, but due to the physical deformation theory, the rigid body-based modeling cannot truly reflect the physical state and the model calculation accuracy is not high Therefore, the present invention proposes a modeling method based on nonlinear tire, flexible frame, and rigid component coupling, which can solve the above calculation accuracy problem. Contents of the invention [0003] The present invention aims to solve the above problems of the prior art. A commercial vehicle steering axle, frame and connector dynamics simulation device is proposed. Technical scheme of the present inven...

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Problems solved by technology

[0002] At this stage, the vehicle dynamics modeling method for commercial vehicles is basically based on the invariant theory for rigid body dynamics modeling, but due to the physical deformation theory, the rigid body-based modeling cannot truly reflect the physical state and the model calculation accuracy is not high , so the present invention proposes a modeling method based on nonlinear tire, flexible frame, and rigid component coupling, which can solve the above calculation accuracy problem

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