Seal strip rebound curve analysis method

A technology of curve analysis and sealing ribs, which is applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of inability to analyze, predict and predict the rebound performance, and achieve the improvement of design accuracy and work efficiency, Performance and structure optimization, the effect of reducing test cost

Active Publication Date: 2018-03-06
CHONGQING CHANGAN AUTOMOBILE CO LTD
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Problems solved by technology

[0003] The invention provides a method for analyzing the rebound curve of sealing ribs, which solves the problem of relying on mechanical equipment and experience to analyze the rebound performance of finished sealing ribs, but cannot analyze, predict and predict the rebound performance of the sealing ribs in the design stage The problem

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Embodiment Construction

[0030] The present invention is further elaborated in conjunction with the accompanying drawings.

[0031] Such as figure 1 As shown, the analysis method of the springback curve of the sealing rib, the specific steps are as follows:

[0032] Step 1: Determination of the structural parameters of the sealing rib: According to the structural parameters, geometric parameters and material properties of the sealing rib cross-section structure, the modeling parameters of the sealing rib structure are preliminarily determined. Such as figure 2 , 3 , 4 and 5, which represent the cross-sectional structure of full-reinforced structure, semi-reinforced structure, "O"-type non-metallic and "T"-type non-metallic sealing ribs, respectively.

[0033] The second step: establish a geometric model based on parameter drive: the root modeling parameters are input as variables to establish a geometric model; when any parameter in the model is changed, other modeling parameters also refer to the...

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Abstract

The invention relates to a seal strip rebound curve analysis method. The seal strip rebound curve analysis method includes the specific steps of 1, determining structural parameters of a seal strip; 2, establishing a geometric model according to parameter driving; 3, subjecting the model to initial topologization; 4, dividing grids according to parameter driving; 5, restraining and loading conditions; 6, submitting finite element calculation after a finite element model is established, and reading and storing vertical displacement of rigid plane pressure head and action force of the corresponding placement; 7, generating a seal strip rebound curve. The seal strip rebound curve analysis method has the advantages that a stress process and a corresponding deformation status of the seal stripare simulated and recorded to obtain the rebound curve of the seal strip and complete prediction of the seal strip rebound performance; the seal strip rebound curve analysis method achieves a 'once-through design pair' of the seal strip without analyzing the rebound performance of a seal strip finished product through mechanical equipment and experience traditionally, and optimizes the performanceand the structure of the seal strip in a design phase purposefully, so that the design correct rate and the working efficiency are both increased while the test cost is reduced.

Description

technical field [0001] The invention relates to a method for analyzing the performance of sealing ribs, in particular to a method for analyzing the rebound curve of sealing ribs. Background technique [0002] The rebound characteristic of the sealing rib is a main special performance index to characterize the dynamic sealing performance, which reflects the deformation characteristic of the elastic internal energy released freely after the rubber material is compressed and reaches the state of entropy balance. Rubber materials have relatively typical viscoelastic properties, and the change of its parameters will go through a certain time course. When the contact pressure between the sealing rib and the sealing surface is too small or a gap is generated, it is easy to cause seal failure. At present, the technical status at home and abroad is to use a compression deformation testing machine or a rebound curve testing machine to test to obtain a rebound curve. The existing tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/17G06F30/23
Inventor 司庆九闵龙沈惠贤卿辉斌谭海徐发扬郑建军
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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