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Multi-objective optimization design method for wheel

A multi-objective optimization and design method technology, applied in design optimization/simulation, calculation, special data processing applications, etc., can solve problems such as limited optimization space, lack of parametric modeling, and automatic optimization design without joint call of performance calculation software , to achieve the effect of improving the optimization effect and optimizing the design effect

Active Publication Date: 2017-09-08
JILIN UNIV
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Problems solved by technology

[0007] The present invention provides a wheel multi-objective optimization solution to solve the problems in the prior art that only analyze and optimize the limited performance of the wheel, lack of parameterized modeling, lead to limited optimization space, and fail to jointly call various performance calculation software for automatic optimization design. design method

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  • Multi-objective optimization design method for wheel

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specific Embodiment approach 1

[0064] Specific implementation mode 1. Combination Figure 1 to Figure 40 Illustrate this embodiment, the wheel multi-objective optimal design method, comprises the following steps:

[0065] 1. Taking a certain type of wheel as the research object, establish a conceptual design model of the wheel in the 3D modeling software, such as figure 1 . According to the "Performance Requirements and Test Methods of Passenger Car Wheels" (GB / T 5334-2005), the wheel topology optimization based on the dynamic bending fatigue test and the dynamic radial fatigue test under the two working conditions were respectively established in the finite element preprocessing software model, respectively figure 2 and image 3 . Set the constraint conditions and objective function in the Optistruct software, add the minimum size constraint, the symmetry constraint of the rotating parts and the wheel processing constraint to the two topology optimization models respectively, and then perform topology...

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Abstract

The invention discloses a multi-objective optimization design method for a wheel, relates to the technical field of vehicle engineering and aims at solving the problems that the optimization space is limited and automatic optimization design is not carried out through joint transferring of calculation software with various properties due to the fact that only limited performance of the vehicle is analyzed and optimized and parametric modeling is lost at present. The method comprises the steps of topological optimization of a wheel fatigue test, combined topological optimization modeling, fatigue performance analysis, impact performance analysis, aerodynamic performance analysis and multi-objective optimization. Five working conditions of a dynamic bending fatigue test of the wheel, a dynamic radial fatigue test, an impact test of an impact hammer opposite to a spoke, an impact test of the impact hammer opposite to a window and air dynamics analysis of the wheel are set; the properties, such as the strength, the rigidity, the vibration characteristic, the fatigue life, the fatigue life security coefficient, the impact performance, the air dynamic property and the lightweight performance of the wheel are comprehensively considered; various performance parameters are calculated through finite element software emulation; and optimization design is carried out on the wheel by setting the performance parameters to be constraint conditions or objective functions.

Description

technical field [0001] The invention relates to the technical field of vehicle engineering, in particular to a multi-objective optimal design method for wheels. Background technique [0002] The wheel is the most important bearing and safety component in the driving system of the car. It belongs to the unsprung mass. It can move in all directions and rotate around the center of the wheel during work. Due to the action of dynamic load, its comprehensive performance directly affects the economy, power, maneuverability, comfort, braking and driving safety of the car. [0003] Researchers at home and abroad have made a lot of achievements in the performance analysis and optimization methods of wheels, but the current research and optimization methods are all based on the analysis and research of the limited performance of the wheels, without the strength, stiffness, vibration characteristics, and fatigue life of the wheels. , impact performance, aerodynamics and light weight, e...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/23Y02T90/00
Inventor 王登峰张帅汪勇
Owner JILIN UNIV
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