惯性导航系统设备加速寿命试验和寿命预测方法研究

发布时间：2018-05-25 23:47

本文选题：惯性导航 + 加速寿命试验　；参考：《电子科技大学》2014年硕士论文

【摘要】：随着科技的进步和人类文明的发展,惯性技术已经被广泛地应用于武器装备、民用器械等方面。作为这一技术承载体的惯性导航系统设备则是主要的代表产品之一,其特点是可靠性高,能在复杂的环境中进行正常的工作,且寿命长,可以不借助外界信号进行自主导航定位。目前对于这一代惯性导航系统设备的寿命预测并没有权威的答案。本文的目的正在于用适当的方法对某型号惯性导航系统设备进行寿命预测,给出一个合理的寿命值。但是,受限于惯性导航系统设备的高成本和核心部件的保密性,以及测试时间不能太长符等客观现实,传统寿命试验无法对其进行寿命评估。而此时加速寿命试验则非常适用。加速寿命试验通过提高产品工作环境的应力水平,从而达到加速产品失效,缩短试验时间,提高试验效率之目的。本文围绕惯性导航系统设备的加速寿命试验及其寿命预测方法等问题开展研究,其主要内容如下:(1)对惯性导航系统设备的结构、工作原理、失效模式及失效机理等进行研究,结合试验和经验数据,找出惯性导航系统设备中存在的薄弱环节。(2)开展惯性导航系统参数长期稳定性误差模型分析,确立多套待试验惯性导航系统,部分惯性导航系统进行加速退化试验,其他惯性导航系统则自然老化,完成了数据的收集。(3)确定了惯性导航系统设备的加速寿命试验类型、试验应力水平和试验方案,完成了试验并进行了加速寿命试验数据分析,运用合理的计算方法计算出了某型号惯性导航系统设备的寿命值。本文的研究成果为惯性导航系统的寿命评估,和新一代装备平台的研制提供参考。
[Abstract]:With the progress of science and technology and the development of human civilization, inertial technology has been widely used in weapons, civil equipment and so on. The inertial navigation system equipment, which is the carrier of this technology, is one of the main representative products. It is characterized by its high reliability, its ability to perform normal work in complex environments, and its long life span. Autonomous navigation and positioning can be carried out without the help of external signals. There is no definitive answer to life prediction for this generation of inertial navigation system equipment. The purpose of this paper is to predict the life of a certain type of inertial navigation system and give a reasonable life value. However, limited by the high cost of inertial navigation system equipment and the confidentiality of the core components, and the test time can not be too long, the traditional life test can not evaluate its life. The accelerated life test is very suitable. The accelerated life test can accelerate the failure of the product, shorten the test time and improve the test efficiency by raising the stress level in the working environment. In this paper, the accelerated life test and life prediction methods of inertial navigation system equipment are studied. The main contents are as follows: 1) the structure, working principle, failure mode and failure mechanism of inertial navigation system equipment are studied. Combined with test and experience data, find out the weak link in the equipment of inertial navigation system. (2) analyze the error model of inertial navigation system parameter long-term stability, and establish many sets of inertial navigation system to be tested. Some inertial navigation systems perform accelerated degradation tests, while other inertial navigation systems naturally age. The data collection is completed. The accelerated life test types, test stress levels and test schemes of inertial navigation system equipment are determined. The test was completed and the data of accelerated life test were analyzed. The life of a certain type of inertial navigation system equipment was calculated by using reasonable calculation method. The research results in this paper provide a reference for the life evaluation of inertial navigation system and the development of new generation equipment platform.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN96

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