A mine dump truck vibration comfort simulation optimization method and device

Abstract

The application discloses a mine dump truck vibration comfort simulation optimization method and device, comprising the following steps: S1, a cab-seat-human multi-dimensional coupling simulation model is constructed; S2, adaptive excitation replication from the actual vehicle to the six-degree-of-freedom vibration table is realized; S3, a vibration comfort subjective and objective fusion evaluation system is established; S4, taking the optimization of the comfort comprehensive index as the core target, the parameters of the seat suspension system and the cab suspension system are subjected to multi-objective collaborative optimization, and a vibration comfort optimization scheme is obtained; and S5, a digital twin closed loop platform is built. The application builds a "cab-seat-human" multi-dimensional coupling model containing refined human key parts, and gives it viscoelastic constitutive characteristics, realizes accurate characterization of the nonlinear mechanical response of the human body under strong vibration, makes the simulation model more truly reflect the transmission of vibration in the key parts of the human body, controls the model prediction error within 5%, and solves the problem of insufficient accuracy of the existing model.

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