深圳亿博检测振动测试测试机构致力于振动测试,老化测试,跌落测试等各类可靠性测试服务。
欢迎拨打检测热线 135-7084-7473
扫码咨询

深圳亿博检测机构(EBOTEST)

135-7084-7473

液晶电视的可靠性试验研究

浏览次数: | 2020-05-27 17:27

  液晶电视的可靠性试验研究

  摘 要: 本文以液晶电视产品为研究对象,在对市场同类产品失效分析的基础上对公司开发的产品进行可靠性试验方法的研究,旨在获得产品可靠性指标的同时,建立一套系统的,合理的适合公司开发的液晶电视产品的加速寿命试验方案,从而更好地对所开发的产品进行质量控制。介绍了可靠性研究的发展历史和国内外可靠性发展现状,可靠性研究的主要内容以及家用电器可靠性的发展。利用工业工程方法,通过对市场上液晶电视产品的失效情况的统计分析,结合公司产品的可靠性现状,建立液晶电视可靠性故障树,为其可靠性试验设计提供依据。

  为了验证所设计的加速试验方案的可行性和合理性,试验分两组同时展开。

  一组是在正常应力下进行的寿命试验,另一组是在加速应力下进行的寿命试验,前者是为验证后者而进行的试验。正常应力试验和加速寿命试验除了试验应力不同之外,其余完全一样:样品从同一批次产品中抽取,试验步骤和失效判据等都相同,因而,理论上每组试验样品的寿命分布类型相同。

  加速寿命试验采用温度加速因子,同时利用定数截尾结束试验。采用阿伦尼斯加速统计模型,首先假设产品服从指数或威布尔寿命分布,然后根据试验数据对产品进行指数分布检验和威布尔分布检验。

  试验数据分别采用点估计和区间估计的方法进行处理。通过对加速寿命试验数据的处理,外推其正常应力下的可靠性寿命值,然后再将其和正常应力下的试验数据进行比对,从而验证加速试验方案是否可行。

  RESEARCH ON RELIABILITY TESTING OF

  LCD TV

  ABSTRACT

  This thesis takes the LCD TV products as the object of study. Based on the failure analysis of the kindred products in the market, the thesis will carry on the research of the reliability test for the products which the company currently developed. The aim for the research is to set up a reasonable, systemic solution which can accelerate the life-time testing of LCD TV products. At the same time, we can get the reliability indicators. That will better strengthen the quality control for the developed products. The thesis also introduce the history, present situation, main content & development of the reliability research for those home electric appliance. kekaoxing.com. By using the industry & engineering method, statistic analysis for those failure LCD

  TV products and combine the reliability situation for the company’s products, this thesis set up a fault tree for the LCD TV. That will provide the foundation of the reliability testing.

  So as to verify the feasibility & rationality of the accelerating test, the test will be proceeded by two groups. One is the life-time testing under the normal stress while the other one is the life-time testing under the accelerated

  stress situation. The former one is performed to verify the latter one. The normal stress test is the same as the accelerated life-time test except the stress test. It is to say the samples will be taken from the same batch products. And the test procedure & the criterion of failure is the same as well. So, theoretically speaking, the life-time distribution pattern for each sample should be same.

  The accelerated life-time test will be finished by using the temperature accelerated factor and definite truncation. Adopting the Arlen Ness accelerating statistics pattern, firstly assume the products obey the indicator or Weibull life distribution, then start the indicator distribution test and Weibull distribution test by the test data.

  The test data is processed by the methods of point estimation & interval estimation. By the process of the accelerating life-time test data, we can get the reliability life-time factor under normal stress. Then compare it with the test data under normal stress, that can verify the feasibility of the accelerated

  EBO介绍

  深圳市亿博科技有限公司(EBO)是服务全球的检验、鉴定、测试和认证机构,帮助众多行业和企业提供一站式的产品检测认证解决方案。EBO的服务能力覆盖照明、安防、化工、机械、消费品、汽车、医疗保健等多个行业的供应链上下游,提供安规检测,EMC检测,有害物质检测,环境安全检测,性能检测,电子电器产品可靠性与失效分析,材料可靠性与失效分析,金属材料、非金属材料分析,纺织品、鞋类、皮革检测,玩具检测,食品包装和接触材料检测、认证与培训,货物适运鉴定等多项综合检测与认证服务。EBO拥有众多优秀且专业的测试和认证工程师,可为广大厂商提供认证申请、标准咨询、测试、技术支持、对策、获得认证等“一站式”服务。


本文连接:http://www.zhendongceshi.com/zxzx/16.html



相关文章
  • 振动可靠性测试
  • 2015年加速应力和可靠性测试
  • 关于智能家居可靠性设计准则
  • 明年平板占LED晶片需求将达24%



  • 此文关键词:可靠性,液晶电视,试验研究,加速寿命试验