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Failure Rate Characteristics Analysis under Ground Mobile and Ground Fixed Environments  

Yun, Hui-Sung (Maintenance Technology Research Center, Consolidated Maintenance Depot, ROK Army)
Jeong, Da-Un (Maintenance Technology Research Center, Consolidated Maintenance Depot, ROK Army)
Yoon, Jong-Sung (Maintenance Technology Research Center, Consolidated Maintenance Depot, ROK Army)
Lee, Seung-Hun (Maintenance Technology Research Center, Consolidated Maintenance Depot, ROK Army)
Publication Information
Journal of Applied Reliability / v.11, no.3, 2011 , pp. 293-303 More about this Journal
Abstract
Reliability Prediction using MIL-HDBK-217F has some restrictions due to its one modeling basis. One of the restrictions is caused by selecting one operating environment of a system, which is chosen regardless of its detailed conditions, e.g., external impact and vibration. Especially, an equipment, which is installed on a mobile vehicle though its movement is quasi-static, is controversial to designate its environment as ground mobile($G_M$), rather than ground fixed($G_F$). In this paper, failure rates were compared, which are computed using several moving time rates to total operating time. RiAC-HDBK-217Plus was used as the basic calculation model. In addition, $G_F$ conditioned failure rate was evaluated by comparing with that under $G_M$ environment but fixed state.
Keywords
MIL-HDBK-217F; RiAC-HDBK-217Plus; Moving Time Rate; Ground Mobile Enviornment; Ground Fixed Environment;
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