A Fault Sample Simulation Approach for Virtual Testability Demonstration Test

Virtual testability demonstration test has many advantages,such as low cost,high efficiency,low risk and few restrictions.It brings new requirements to the fault sample generation.A fault sample simulation approach for virtual testability demonstration test based on stochastic process theory is prop...

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Bibliographic Details
Published inChinese journal of aeronautics Vol. 25; no. 4; pp. 598 - 604
Main Authors ZHANG, Yong, QIU, Jing, LIU, Guanjun, YANG, Peng
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.08.2012
Subjects
fault sample
Faults
maintenance
Monte Carlo
Platforms
Samples
Simulation
Statistical analysis
Statistical methods
statistical simulation
stochastic process
Testability
testability demonstration
Tracking
virtual testability test
故障样本
故障模拟
测试性
虚拟
试验测试
间隔时间
随机过程理论
验证试验
virtual testability test
Monte Carlo
testability demonstration
stochastic process
statistical simulation
maintenance
fault sample
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ISSN1000-9361
DOI10.1016/S1000-9361(11)60424-X

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Summary:Virtual testability demonstration test has many advantages,such as low cost,high efficiency,low risk and few restrictions.It brings new requirements to the fault sample generation.A fault sample simulation approach for virtual testability demonstration test based on stochastic process theory is proposed.First,the similarities and differences of fault sample generation between physical testability demonstration test and virtual testability demonstration test are discussed.Second,it is pointed out that the fault occurrence process subject to perfect repair is renewal process.Third,the interarrival time distribution function of the next fault event is given.Steps and flowcharts of fault sample generation are introduced.The number of faults and their occurrence time are obtained by statistical simulation.Finally,experiments are carried out on a stable tracking platform.Because a variety of types of life distributions and maintenance modes are considered and some assumptions are removed,the sample size and structure of fault sample simulation results are more similar to the actual results and more reasonable.The proposed method can effectively guide the fault injection in virtual testability demonstration test.
Bibliography:Virtual testability demonstration test has many advantages,such as low cost,high efficiency,low risk and few restrictions.It brings new requirements to the fault sample generation.A fault sample simulation approach for virtual testability demonstration test based on stochastic process theory is proposed.First,the similarities and differences of fault sample generation between physical testability demonstration test and virtual testability demonstration test are discussed.Second,it is pointed out that the fault occurrence process subject to perfect repair is renewal process.Third,the interarrival time distribution function of the next fault event is given.Steps and flowcharts of fault sample generation are introduced.The number of faults and their occurrence time are obtained by statistical simulation.Finally,experiments are carried out on a stable tracking platform.Because a variety of types of life distributions and maintenance modes are considered and some assumptions are removed,the sample size and structure of fault sample simulation results are more similar to the actual results and more reasonable.The proposed method can effectively guide the fault injection in virtual testability demonstration test.
fault sample testability demonstration virtual testability test stochastic process statistical simulation Monte Carlo maintenance
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ISSN:1000-9361
DOI:10.1016/S1000-9361(11)60424-X