Finite element analysis method for telescopic electric pedal
An analysis method and technology of electric pedals, which are applied in combustion engines, electric digital data processing, internal combustion piston engines, etc., can solve the problems of inability to evaluate the performance of pedals, and achieve the effects of ensuring performance, shortening cycle time, and reducing costs
Pending Publication Date: 2022-02-01
CHINA FIRST AUTOMOBILE
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Problems solved by technology
[0008] The technical problem to be solved by the present invention is to overcome the problem in the prior art that the performance of the pedal cannot be evaluated in the product design stage, and to provide a finite element analysis method for the telescopic electric pedal
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specific Embodiment approach
[0069] In the following, a specific embodiment of the present invention will be described in more detail. See Figure 2 to Figure 5 . The specific implementation is as follows:
[0070] Step1: Establish a local body data model based on the body data.
[0071] Setp2: Establish the human foot model, as shown in Figure 2.
[0072] Described people's foot adopts solid unit to establish sole model, two-dimensional unit establishes upper, solid unit establishes foot model, if sole adopts two-dimensional grid grid modeling, sole and upper are separated during motion, and sole adopts Solid When unit modeling, there will be no detachment phenomenon during the movement process, that is, the modeling of the sole with solid units is more accurate. The sole and upper material parameters are designed according to the rubber parameters, and the foot material is designed according to the steel material.
[0073] Setp3: Establish the grid model of the pedal and the pedal mechanism based o...
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The invention belongs to the technical field of reliability and durability of automobile accessories, and relates to a finite element analysis method for a telescopic electric pedal. The method comprises the steps of establishing a vehicle body model; establishing a telescopic pedal and pedal movement mechanism model; establishing a human foot finite element model; analyzing and calculating the strength of the telescopic pedal; applying boundary conditions according to the strength working condition, analyzing and calculating the actual stress conditions of the pedal mechanism and the vehicle body under the strength working condition, carrying out finite element analysis calculation on the pedal mechanism and the vehicle body under the strength working condition, obtaining a stress nephogram under the strength working condition, and then comparing the analysis result with the material yield strength; and performing structure optimization on the part which does not meet the material yield strength according to a comparison result. The method can accurately predict the strength insufficiency risk of the vehicle body and the pedal mechanism at the early stage of pedal development, guarantees the reasonable design and optimization space, avoids the strength insufficiency phenomenon in the later pedal use process, shortens the development period, reduces the development cost, and improves the user use performance and brand quality evaluation.
Description
technical field [0001] The invention belongs to the technical field of reliability and durability of automobile accessories, and relates to a finite element analysis method of a telescopic electric pedal. Background technique [0002] In the development process of telescoping pedals, whether the performance of the pedals and the performance of the connecting parts with the body can meet the requirements is the unanimous concern of engineers. However, the performance of pedals is usually evaluated by testing, which will result in a long development cycle and high development costs. Therefore, it is attempted to use finite element analysis for calculation and risk assessment before the trial product is released, which will shorten the development cycle and reduce Development costs. At present, most of the pedaling performance analysis of the brake pedal and the boarding pedal adopts rigid unit loading. Due to the rigidity of the rigid unit, the finite element analysis results...
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IPC IPC(8): G06F30/15G06F30/23G06F111/04G06F119/14
CPCG06F30/15G06F30/23G06F2111/04G06F2119/14Y02T10/40
Inventor 杜伟娟于保君张雨马明辉王月李景潭刘启龙马书元徐安杨
Owner CHINA FIRST AUTOMOBILE