Analyzing missile electric system reliability
Analyzing missile electric system reliability
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导弹电气系统可靠性分析
DOI：
10.1109/tai.1956.6367173
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发表时间：
1956
期刊：
影响因子：
--
通讯作者：
B. J. Wilson
中科院分区：
文献类型：
--
作者：
B. J. Wilson
导弹电气系统的性能可靠性可以用施加在系统设备上的电压和频率的稳态值来定义。这种观点强调提供电力的辅助功能，而不是电子设备的主要功能，如信号放大或控制响应。其他故障产生参数，如操作环境，老化和生产差异必须通过定义来识别。至少在假设中，这些参数可以被归类为次要因素，从而将注意力集中在早期设计阶段最严重的问题上。负荷设备的性能可靠性在所谓的黑盒水平上进行评估。在这个过程中，主电源连接到输入端;性能在输出端测量。不同输入条件下的测试结果提供了描述输入-输出关系的信息。在讨论中，电输入条件的变化仅限于电压，但也可以通过相同的过程扩展到频率。从这些结果中，统计计算得出设备的可能性能值。类似的过程给出发电机或其他电源的可能性能，在这种情况下，输出是电压。这些测试取代了传统的电路分析和测试，并说明了在非常复杂的设备中无法准确预测的性能分散。因此，在无法进行环境测试的试验板设备上，可能会获得后续生产线设备预期的近似性能。要彻底执行该方法，需要为构成整个系统的每个设备或至少被认为是最关键的设备提供单个原型模型。这种试验没有明确考虑到构成设备包件的各个组成部分。它们的设计允许确定所有复杂系统的性能可靠性，系统或设备故障量最少。最后，在统计独立的假设下，设备的可靠性系列乘以确定整个系统的可靠性。
The performance reliability of a missile electric system may be defined in terms of steady-state values of voltage and frequency applied to the system equipment. This viewpoint stresses the auxiliary function of furnishing electric power as contrasted to the prime functions of electronic equipment such as signal amplification or control response. Other failure-producing parameters such as operational environments, aging, and production differences must be recognized by the definition. Hypothetically at least, these parameters may be classified as secondary factors, thus bringing attention to focus on problems most acute in early design stages. Performance reliability of load equipment is evaluated at the so-called blackbox level. In this process, the prime electric source is connected to the input; performance is measured at the output. The test results from varying input conditions furnish information to describe the input-output relationships. In the discussion, variations on electric input conditions are confined to voltage but may be extended to frequency as well by an identical procedure. From these results, statistical calculations derive values of probable performance for equipments. A similar process gives probable performance of generators or other sources, the output in this case being electric voltage. These tests replace conventional circuit analysis and testing, and account for performance dispersion that cannot be predicted with accuracy in equipment of great complexity. Hence, approximations of performance expected from subsequent production-line equipment may be obtained on breadboard equipment that cannot be submitted to environmental testing. To carry out the method thoroughly requires a single prototype model for each of the equipments that make up the entire system, or at least those that are considered most critical. Such tests do not consider explicitly the individual component parts which make up the equipment package. They are designed to permit determination of performance reliability of over-all complex systems with the least amount of system or equipment breakdown. Finally, under assumptions of statistical independence, equipment reliabilities are serially multiplied to determine over-all system reliability.