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A Design Method of Window Frame Structure Based on Fine Equivalent Model of Car Door Seal

An equivalent model and structural design technology, applied in design optimization/simulation, geometric CAD, special data processing applications, etc.

Active Publication Date: 2020-06-02
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditional design methods obviously cannot meet the requirements of modern automobile design

Method used

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  • A Design Method of Window Frame Structure Based on Fine Equivalent Model of Car Door Seal
  • A Design Method of Window Frame Structure Based on Fine Equivalent Model of Car Door Seal
  • A Design Method of Window Frame Structure Based on Fine Equivalent Model of Car Door Seal

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Embodiment Construction

[0045] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0046] like figure 1 As shown, a window frame structure design method based on the fine equivalent model of the door seal includes the following steps:

[0047] S1: Car door seal segmentation and CLD curve acquisition: Segment the edge of the window frame of the car door into a straight line segment and a corner segment, and perform three-dimensional compression finite element analysis on the sealing strips at the straight line segment and corner segment respectively, and obtain the sealing strip of each segment The compression-displacement curve and the stiffness coefficient of each...

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Abstract

The invention relates to a window frame structure design method based on a car door sealing fine equivalent model. The method is characterized by comprising the steps that S1, a window frame edge of a car door is segmented into a straight segment and a turning segment, and a compression-displacement curve and stiffness coefficients of all sealing strips are obtained; S2, the car door sealing fine equivalent model is established; S3, compression displacement of equivalent spring units is obtained according to clearance between a car door window frame and a door frame side wall, and the deformation amount of the window frame is obtained based on stiffness coefficients of all the equivalent spring units and the corresponding compression displacement; and S4, an optimal stiffness value and an optimal pre-bending amount value of the window frame are obtained according to the deformation amount of the window frame. Compared with the prior art, smaller stiffness meeting a sealing requirement can be obtained, redundant stiffness obtained through a concentrated load method can be remarkably compressed, a more reliable reference can be provided for design of the car window pre-bending amount including a sealing fine reaction, and light minimum car door stiffness optimal design is supported.

Description

technical field [0001] The invention relates to the field of digital design and manufacture of a car door sealing system, in particular to a window frame structure design method based on a fine equivalent model of car door sealing. Background technique [0002] Door stiffness has a great influence on vehicle safety and comfort. Among them, the stiffness and deformation of the window frame determine the matching state of the window glass and the guide groove seal, and are closely related to the NVH performance of the vehicle. NVH is the abbreviation of three English words, namely Noise (noise), Vibration (vibration) and Harshness (sound). Vibration roughness can also be commonly understood as roughness). At present, the increasingly developed expressway network has greatly increased the speed of vehicles. However, the resulting high-speed fluid-solid coupling effect greatly affects the matching state of the door and the body. The high-speed wind pressure has the largest ou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/23G06F30/15
CPCG06F30/15G06F30/23
Inventor 朱文峰李春宇
Owner TONGJI UNIV
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