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A calculation method for assembling performance of outer sealing strip of car windowsill

A calculation method and sealing strip technology, which is applied in the calculation field of the assembly performance of the outer sealing strip of the window sill of a car, can solve the problems of unsuitable assembly performance of the sealing strip, improve design quality and efficiency, improve calculation efficiency, and save development costs Effect

Pending Publication Date: 2019-02-05
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

Due to the different structures of the sealing strips, the modeling method and the treatment of boundary conditions have certain limitations, and the analysis method is not suitable for the calculation of the assembly performance of the sealing strips on the outside of the car window sill

Method used

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  • A calculation method for assembling performance of outer sealing strip of car windowsill
  • A calculation method for assembling performance of outer sealing strip of car windowsill
  • A calculation method for assembling performance of outer sealing strip of car windowsill

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the content of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] According to attached figure 1 As shown in the flow diagram of the calculation method for the assembly performance of the outer sealing strip of the car window sill, a calculation method for the assembly performance of the outer sealing strip of the car window sill includes the following steps:

[0040] (1) Use the 3D modeling software UG to establish the 3D geometric model 1 of the outer sealing strip of the car window sill, and create a 3D geometric model 1 on the 3D geometric model 1 figure 2 The geometric plane 2 is shown, and the geometric plane 2 is perpendicular to the feature line on the 3D geometric model 1; the 3D geometric model 1 is split through the geometric plane 2, and the result is as follows image...

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Abstract

The invention discloses a calculation method for assembling performance of outer sealing strip of car window sill, which comprises the following steps: 1) establishing a three-dimensional geometric model and carrying out volume splitting; 2) generating a cross-sectional plane of the sealing strip by using the split three-dimensional geometric model; 3) establish a material constitutive model of that sealing strip accord to the material test; 4) divide that transverse plane into finite element mesh and setting element type; 5) Create a rigid body plane and ignore the deformation of the door sheet metal and define its outer contour curve as a rigid body plane. 6) establish a two-dimensional finite element model for that assembly performance analysis of the sealing strip, and generate an input file which can be recognized by the solver; 7) submit that input file to the solver to obtain the simulation result file, and utilize the post-processing module to process and extract the relevant data and save the drawing. The invention greatly improves the calculation efficiency, more accurately simulate the actual loading situation of the outer sealing strip of the car window sill, and the structure type of the analyzable sealing strip is more than the existing calculation method.

Description

technical field [0001] The invention relates to the field of automotive sealing system components, in particular to a method for calculating the assembly performance of a window sill outer sealing strip of a car based on a finite element method. Background technique [0002] As an important part of the car sealing strip system, the outside sealing strip of the car window sill is installed between the door sheet metal and the window glass. The outer sealing strip of the car window sill is also a mosaic type sealing strip, which has a clamping structure and a barb structure and is embedded on the flange of the door sheet metal. Therefore, during the assembly process, an external force is required to assemble the sealing strip to the expected installation position, and this external force is called the insertion force. For the convenience of assembly, it is often expected that the insertion force should be as small as possible. After the assembly is completed, in order to pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/23G06F30/15G06F30/17
Inventor 李旻谭孟上官文斌
Owner SOUTH CHINA UNIV OF TECH
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