Automatic extraction method and system based on vehicle suspension static load

Abstract

The invention discloses an automatic extraction method and system based on a vehicle suspension static load, and the method comprises the steps: setting data needed by suspension static load extraction through a data module, and compiling a static load condition table; constructing a static load suspension model by utilizing the static load working condition table information, and checking whetherthe static load extracted by the suspension model is set correctly or not; importing the prepared data and the suspension model into a processing module, and outputting a static load calculation result by utilizing an output module; and checking the static load calculation result, analyzing and judging whether the checked static load calculation result is correct or not, and completely filing thestatic load calculation result. According to the invention, the strategy of combining the load batch processing file and the simulation command stream is adopted, the suspension static load is efficiently and accurately extracted, the defects that in the prior art, an extraction method of the vehicle suspension static load is tedious in work and prone to making mistakes, and consequently the efficiency and accuracy of load output are reduced are overcome, the efficiency of vehicle structure finite element analysis static load input is greatly improved, and the research and development periodof a vehicle is effectively shortened.

Description

Technical field [0001] The invention relates to the technical field of automobiles, and in particular to an automatic extraction method and system based on the static load of a vehicle suspension. Background technique [0002] Static load extraction of vehicle suspension usually refers to reproduce and calculate the force of vehicle components under certain extreme driving conditions through dynamic software, that is, output the load on the connection point of the chassis and the body (three Force in one direction and moment in three directions). In the vehicle development process, it can be roughly divided into pre-research and prototype (mule car, tooling prototype, etc.) stages. In different development stages, it will involve vehicle structural hard points, rubber bushings and other elasticity. See parameters and parts Changes in the structure, etc., changes in these parameters will affect the force of the vehicle structure. Therefore, it is necessary to carry out static lo...

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Problems solved by technology

However, the static load of the finite element analysis is divided into force and moment, and the load of each hard point is divided into a total of 6 parameters in the three directions of X, Y, and Z in space (these 6 parameters are FX, FY, FZ, MX, MY, MZ); the working conditions of the static load of the vehicle range from a dozen working conditions to dozens of working conditions; extract one by one from the post-processing Requests into the Excel table, and then manually Loading, each update of the static load requires hundreds or even thousands of repeated operations, resulting in cumbersome work and error-prone; moreover, human errors are prone to occur in reading and filling, thereby reducing the efficiency and accuracy of the output load Spend

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