Simulation analysis method for bonding strength of central control screen of vehicle machine
A technology of bonding strength and simulation analysis, applied in design optimization/simulation, special data processing applications, geometric CAD, etc., can solve problems such as unfavorable analysis, long test cycle, high cost, etc., to save test cost, shorten design cycle, Effects that are easy to analyze
Pending Publication Date: 2022-03-25
四川启睿克科技有限公司
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to propose a simulation analysis method for the bonding strength of the central control panel of the vehicle and machine, which solves the problems of high cost and long test period in the strength verification scheme of the structure of the central control panel of the vehicle and machine in the prior art, and cannot The debonding process of the adhesive strip was observed during the test, which is not conducive to further analysis
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[0029] Such as figure 1 As shown, the simulation analysis method for the bonding strength of the car-machine central control panel in this embodiment includes the following implementation steps:
[0030] (1) Import the 3D geometric model of the central control panel of the car and clean it up:
[0031] In this step, the 3D geometric model of the central control panel of the car is imported into the SpaceClaim software for model cleaning, including drawing the center surface of metal components such as the main engine shell and bracket structure, converting them into shell elements, and cleaning small chamfers in the structure, Geometric features such as small rounded corners, small holes, small faces, and footprints, while simplifying PCB components with complex shapes and not focused attention into solid bodies with regular shapes.
[0032] (2) Establish the finite element model of the impact load on the central control panel of the car, and then export the K file:
[0033]...
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The invention relates to an automobile part design simulation technology, discloses a simulation analysis method for bonding strength of a central control screen of a vehicle machine, and solves the problems that a strength verification scheme for a central control screen structure of the vehicle machine in the prior art is high in cost and long in test period, the debonding process of an adhesive tape in the test process cannot be observed, and further analysis is not facilitated. The method comprises the following steps: importing a three-dimensional geometric model of the central control screen of the in-vehicle infotainment system, and carrying out model cleaning on the three-dimensional geometric model; establishing a finite element model of the impact load on the central control screen of the in-vehicle infotainment system, and then exporting a K file; editing the K file, and selecting a contact algorithm to simulate a connection relationship between the components; submitting the K file for calculation and solution, and obtaining a vehicle-mounted information machine energy curve after the solution succeeds; and judging the rationality of the calculation result, if the calculation result is reasonable, obtaining the maximum equivalent stress cloud picture and numerical value of the VHB adhesive tape, and comparing the maximum equivalent stress cloud picture and numerical value with the tensile test result of the VHB adhesive tape base material to obtain an analysis result.
Description
technical field [0001] The invention relates to a design simulation technology of auto parts, in particular to a method for simulation analysis of bonding strength of a central control panel of a vehicle. Background technique [0002] During the driving process of the vehicle, especially when encountering some safety accidents, the auto parts will be stimulated by the impact from the body. Under these impact loads, the auto parts are prone to strength damage and affect their normal work. Among them, the screen and the middle frame of the central control panel of the car are bonded together by VHB adhesive strips. The adhesive strips are prone to debonding under impact loads, resulting in the separation of the screen and the middle frame, causing appearance damage and even affecting its performance. [0003] At present, product designers usually use test methods to verify the strength of the control screen structure of the car. For the bonding strength between the screen and ...
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IPC IPC(8): G06F30/15G06F30/23G06F111/10
CPCG06F30/15G06F30/23G06F2111/10
Inventor 蒋晓琴周鸿刘凝瑶莫洵
Owner 四川启睿克科技有限公司