基于可靠性理论的包装振动试验方法改进  

Improvement of Test Method for Vibration in Packaging Based on Reliability Theory

作　　者：江春冬[1] 李海龙[1] 杜太行[1] 武玉维[1] 

机构地区：[1]河北工业大学,天津300130

出　　处：《包装工程》2015年第5期16-20,共5页Packaging Engineering

基　　金：河北省青年基金(F2014202264)

摘　　要：目的基于可靠性理论改进包装件的振动试验方法。方法通过界定产品平均寿命、试验截止时间和失效数,研究了样本大小对整个试验可靠程度的影响,以及改变包装阻尼与振动频率对试件振动幅值的影响。结果保证包装产品的可靠性有必要明确样本的大小,样本过小将不能完全体现该批产品的可靠程度;样本过大,虽然能充分体现该批产品的可靠程度,但试验费用将大大提高。随着产品样本的增大,使用者的风险降低。结论在包装件振动试验中融入可靠性理论,并在试验标准中加入失效率验证程序和失效率等级等内容,提高了包装件的可靠性。To improve the test method for vibration of packaged products based on reliability theory. By defining the average product life expectancy, test end time and failure number, the paper investigated the effect of sample size on the entire test reliability, and the influence of change of the packaging damping and vibration frequency on the vibration amplitude of the specimen. It was necessary to determine the sample size in order to ensure the reliability of the packaged products. If the sample size was too small, the reliability of this batch of samples could not be fully reflected. If the sample size was too large, although the reliability of this batch of products could be fully reflected, the test cost would be largely increased. With the increase of product samples, the user＇s risk decreased. The reliability of the packaged products was increased by integration of reliability theory into the vibration test of packaged products as well as the introduction of failure rate verification procedure and failure rate level into the test standards.

关 键 词：可靠性理论 振动试验 失效判据 可靠性等级 失效率 

分 类 号：TP485.3[自动化与计算机技术]