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A lightweight design method for truck front axle based on cae

A lightweight design, front axle technology, applied in geometric CAD, design optimization/simulation, instrumentation, etc., can solve problems such as lack

Active Publication Date: 2022-04-22
JIANGLING MOTORS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a lack of very good technical means to optimize the product structure and achieve lightweight

Method used

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  • A lightweight design method for truck front axle based on cae
  • A lightweight design method for truck front axle based on cae
  • A lightweight design method for truck front axle based on cae

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Experimental program
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Embodiment 1

[0056] The following will be based on the technology before and after the optimization of the front axle structure, after optimization to achieve a weight loss of 8kg (base38.8kg).

[0057] The specific implementation of topology optimization in a certain industrial software is as follows:

[0058] 1. Structural optimization based on topology optimization

[0059] 1.1 Define Topology Optimization Variables

[0060] The region where the structure has no connection (installation point) points is defined as the structural topology optimization region (defined as a design variable), such as Figure 7 Deep regions are defined as structural topology optimization regions. specific:

[0061] 1.1.1 Vertical 2.5g impact condition

[0062]Constraints: 12356 constraints on the left side of the connection between the axle and the leaf spring, 1356 constraints on the right side;

[0063] Load: Axle load before full load: P1=2405(kg)*9.8kg / m.s^2;

[0064] Calculated according to the fu...

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Abstract

The invention discloses a CAE-based lightweight design method for truck front axles, which is characterized in that it includes the following steps: strength analysis; lightening the vehicle frame, performing model simplification and working condition definition; the strength calculation method is as follows : Based on the CAD model of the existing structural design, build the CAE finite element model of the front axle system and perform strength analysis. The CAE model of the truck front axle includes the steering knuckle and the front axle; The rigid body unit is connected, and the tire contact point and the steering knuckle shaft are rigidly connected through the rigid unit. When the strength is solved, the load is applied to the tire contact point, and the load is applied according to the following three working conditions. In the development of new trucks, this patented technology can effectively reduce the weight of parts, improve the cruising range of vehicles, reduce the cost of parts, and thus improve product competitiveness.

Description

technical field [0001] The invention belongs to the field of structural optimization design of new energy vehicles, specifically, it is based on computer-aided engineering (CAE) technology to optimize the design of the truck front axle structure. Background technique [0002] New energy trucks increase the mileage and reduce power consumption are important means to enhance product competitiveness. The realization of light weight through structural optimization design is of great significance to increase the cruising range, reduce power loss and reduce the cost of parts and materials. [0003] The existing front axle design technical route is usually as follows: refer to competing cars for structural design, and then carry out CAE strength check analysis, and the design is completed if the strength is met. Therefore, there is a lack of very good technical means to optimize the product structure and achieve lightweight. [0004] This patent introduces a CAE drive structure o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/15G06F30/23G06F119/14
CPCG06F30/15G06F30/23G06F2119/14
Inventor 陈为欢黄晖余显忠邱星熊伟
Owner JIANGLING MOTORS