Multi-body dynamics simulation method, system and equipment of chain system and medium

By correcting the structural parameters of the target components of the chain system and building a lubrication-volatilization-friction coupling matrix, the problem of insufficient reliability of multi-body dynamic simulation of chain system in space environment is solved, and accurate simulation of the dynamic transmission behavior of the chain system in space environment is achieved.

CN120470939APending Publication Date: 2025-08-12SHANGHAI HANTONG AUTOMOBILE SPARES CO LTD
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Patent Information

Application Number
CN202510836628.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-21
Publication Date
2025-08-12

AI Technical Summary

Technical Problem

In the multi-body dynamic simulation of chain systems in the space environment, the prior art ignores the viscosity changes of lubricating media and the dynamic impact of volatility on friction, resulting in insufficient simulation reliability.

Method used

By obtaining the space environment parameters and physical characteristics of the lubricating medium of the chain system, correcting the structural parameters of the target components, building a lubrication-volatility-friction coupling matrix, establishing a multi-body dynamic model, inputting speed fluctuation curve and load torque data, it accurately reflects the dynamic transmission behavior of the chain system in the space environment.

Benefits of technology

It improves the reliability of multi-body dynamic simulation of chain systems, accurately characterizes the chain tension distribution, tensioner response behavior and system transmission error, and enhances the reliability and engineering applicability of simulation results.

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Abstract

A multi-body dynamics simulation method, system, device and medium for a chain system, the method comprising: acquiring a connection relationship among a plurality of target components in the chain system, a structure parameter, a space environment parameter and a task parameter of each target component, and a physical property of a lubricating medium of the chain system under the space environment parameter; correcting the structure parameter of each target component based on the space environment parameter to obtain a target structure parameter; based on the target structure parameters and the connection relation, determining friction characteristic indexes and motion freedom degrees among the multiple target assemblies; constructing a lubrication-volatilization-friction coupling matrix among the plurality of target components; constructing a multi-body dynamic model according to the target structure parameters and the lubrication-volatilization-friction coupling matrix; and acquiring a rotating speed fluctuation curve and load torque data corresponding to the task parameters, and inputting the rotating speed fluctuation curve and the load torque data into the multi-body dynamic model to obtain a dynamic simulation result of the chain system. The reliability of multi-body dynamics simulation of the chain system can be improved.
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