Design and Dynamic Analysis of Fixture Behaviour Used for Vibration Testing of some Automotive Components

7th International Conference on Advanced Materials and Structures

Bârgu, A.B.^1 ; Simoiu, D.^1 ; Gozman-Pop, C.^1 ; Vldaia, D.^1 ; Berce, L.C.^1 ; Bereteu, L.^1

Mechanics and Materials Strength Department, Politehnica University Timioara, Bd. Mihai Viteazul, nr. 1, Timioara

300222, Romania^1

关键词: Aging products;    Automotive component;    Car manufacturers;    Design and dynamics;    Destructive tests;    Modal parameters;    Steering wheel;    Vibration testing;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/416/1/012023/pdf
DOI  :  10.1088/1757-899X/416/1/012023

来源: IOP

【 摘 要 】

The purpose of this paper is to develop a project for fixtures used in the automotive industry for fixing of certain components such as side airbags, curtain airbags, driver airbag, airbags in the seats airbags knee protection, devices for securing the seat belts, steering wheels, in order to test to vibration. Due to the multitude of elements which are in continuous movement on the vehicle or the high forces that occur during vehicle running, mechanical vibrations phenomena are produced. These cause aging products mounted on the car, lead to fatigue of materials, and to lower initial mechanical properties and finally the complete destruction of subassemblies. To prevent such situations, car manufacturers always ask before approval to make the simulation of vibration and then to recover destructive tests and prepare a report of the simulation correctly. Therefore, after carrying out the project it will be 1odelled by applying the Finite Element Method (FEM), and then using Finite Element Analysis (FEA) to determine modal parameters. A fixture for the locking of the seat belt socket is the object of the analysis in this paper.