Power assembly support 28 working condition static load extraction method

A powertrain and static load technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as complex methods, large amounts of data, and error-prone, so as to avoid errors, simplify simulation methods, and shorten processing time. the effect of time

Pending Publication Date: 2021-04-02
YIBIN COWIN AUTO CO LTD
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Problems solved by technology

This method needs to run 28 simulations, and the method is complicated; secondly, when carrying out the load combination of 28 working conditions, it can only rely on manual processing, with a large amount of data and error-prone

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  • Power assembly support 28 working condition static load extraction method

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Embodiment Construction

[0021] The specific implementation of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0022] figure 1 The flow chart of the method for extracting the static load of the powertrain bracket 28 working condition provided by the embodiment of the present invention, the method specifically includes the following steps:

[0023] S1. Build a multi-body dynamics model of the powertrain system. This type of model has a corresponding template integrated in the ADAMS / Car software. It only needs to be modified and saved according to its own parameters. The modeling method is mature;

[0024] S2. Build an incentive bench based on the ADAMS / Car software. The construction method is as follows:

[0025] S21. The first step is to e...

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Abstract

The invention discloses a power assembly support 28 working condition static load extraction method which comprises the steps that S1, building a multi-body dynamic model of a power assembly system, and the multi-body dynamic model is called a power assembly model for short; S2, building an excitation rack associated with the power assembly model, wherein the building of the excitation rack comprises the steps of building a centroid point of external excitation, a stress direction of the centroid point and a driving force moment spline, and a spline point on the driving force moment spline isan external excitation load under a 28 working condition; and S3, triggering simulation, based on the external excitation load on each spline point on the driving moment spline, sequentially and automatically completing static load extraction at each bracket interface point under the 28 working condition, and exporting a static load file at each bracket node under the 28 working condition at one time. After a simulation program is triggered, analog simulation of 28 working conditions is automatically completed, a unified power assembly support load file is output at the same time, manual processing and integration again are not needed, the simulation method is simplified, the processing time is greatly shortened, and errors of load file integration processing in the process are avoided.

Description

technical field [0001] The invention belongs to the technical field of dynamic load simulation, and more specifically, the invention relates to a static load extraction method of a power assembly support 28 working condition. Background technique [0002] In the early stage of vehicle structure design, it is particularly important to correctly extract the static load of the powertrain bracket to guide its strength design. With the continuous progress and development of finite element technology and computer hardware resources, static load extraction and structural component strength simulation analysis have been widely used in vehicle development. The detailed technical plan is: 1) Use the multi-body dynamics software to build the multi-body dynamics model of the powertrain system; 2) Calculate the external load file according to the required static working conditions (that is, the force of the 28 working conditions of the center of gravity of the powertrain) ;3) Load the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F30/15G06F119/14
CPCG06F30/15G06F30/23G06F2119/14
Inventor 荣兵石向南唐龙川米文亮林华
Owner YIBIN COWIN AUTO CO LTD
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