An optimization method for the layout design of aerodynamic struts in the back door of automobiles

Abstract

The invention relates to the technical field of automobile structure design optimization methods, in particular to an automobile back door aerodynamic strut layout design optimization method. Set the gas strut optimization area; screen the gas strut optimization area based on the set gas strut manufacturability conditions, and obtain the manufacturability optimization area that meets the gas strut manufacturability conditions; based on the set low temperature initial closure The force condition screens the manufacturing optimization area to obtain the low-temperature closing optimization area that meets the low-temperature initial closing force condition; the low-temperature closing optimization area is screened based on the set room temperature opening and closing conditions to obtain the room temperature optimization area that meets the room temperature opening and closing conditions; Based on the set force value range of the gas strut, the self-closing potential energy of the back door and the operating force of the back door, the room temperature optimization area is screened, the final optimization area is obtained to obtain the optimal solution, and the optimal design parameters are obtained based on the optimal solution. The method of the invention is extremely simple and efficient, and has great popularization value.

Description

technical field [0001] The invention relates to the technical field of an automobile structure layout design optimization method, in particular to an automobile back door pneumatic strut layout design optimization method. Background technique [0002] The operability of the back door is an important part of the convenience of opening and closing parts of passenger cars. It directly affects the important factors of customer purchase and subsequent brand recognition. Major OEMs have devoted a lot of energy to research and improve the operation of products. Comfort, to enhance the competitiveness of its products. Therefore, it is urgent to establish a key technology to improve customer control comfort and perception experience, and enhance product soft power and brand image. [0003] Traditional rear door maneuverability optimization idea: according to the CAS surface of the modeling output, arrange the gas struts, and then calculate the maneuverability according to the EXCEL ...

AI Technical Summary

Problems solved by technology

[0004] According to this method, there are two disadvantages: 1. The optimal solution cannot be obtained by EXCEL calculation, and the optimization direction is not clear. Exhaustive + empirical layout is adopted, which affects the shape, body structure and man-machine layout, and the adjustment target and direction are not clear; 2. The layout efficiency is low, and the operability is adjusted and optimized while testing. If the target is not met, the time to change the best plan will be delayed

Images