Effects of random vibration in the useful life of printed circuit

被引:0
|
作者
Cardona J.P. [1 ]
Leal J.J. [2 ]
Vásquez J.C. [3 ]
机构
[1] Dpto. de Ciencias básicas, Facultad de Ingeniería Bogotá, Univ. Cooperativa de Colombia, Avenida Caracas 37-63, Bogotá
[2] Dpto. De Ciencias básicas, Facultad de Ingeniería, Univ. Nacional de Colombia, Carrera 32 No. 12-00 Chapinero, Via Candelaria, Palmira Valle del Cauca
[3] Departamento de Tecnología, Universidad Pedagógica Nacional, Av. Calle 72 No 11 86, Bogotá
来源
Informacion Tecnologica | 2016年 / 27卷 / 06期
关键词
Mechanical flexing; Printed circuit board; Random vibration; Useful life;
D O I
10.4067/S0718-07642016000600024
中图分类号
学科分类号
摘要
In this article the percentage theoric reduction in the lifetime of the printed circuit in hours of continuous operation on the components that are located at the point where the card suffers its maximum deflection is determined, when is subjected to different levels of random vibration. Electronic devices are often used under extreme vibration conditions and as a result of them connections of electronic components suffer damage and the device performance decreases its useful life. To apply the theory, a printed circuit of a video recorder, installed in the cab of a vehicle of massive transport without vibration isolation was analyzed. The vehicle was put in motion and different values of random vibration were recorded and then they are used to forecast the effects in the useful life of the printed circuit board. It is concluded that the reduction in the useful life under these conditions is considerable, so it is suggested to design and build a vibration isolation system for the case studied.
引用
收藏
页码:237 / 248
页数:11
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