A reliability prediction method based on simulation analysis
At present,customers demand more complex and reliable products to be developed with shorter lead times and more cost effectiveness.In the product development lifecycle,the traditional approach to reliability specification has been based on unrealistic reliability prediction by using standards,such as Mil-Hdbk-217 in the specific case of electronics equipment.In China at the product development stage,the reliability prediction is based on GJB 299.Often,the prediction methodology used assumes an exponential failure rate,meaning that random failures and faults are inevitable.Therefore,without the recognition that many failures can be prevented by attention to basic design details.And the traditional reliability prediction method,which is based on the fault logics of product composition units,has inherent limitations,e.g.,it is not relevant to product design parameters.Finding new reliability prediction method to address the challenges that we face during the product development lifecycle is needed.In this paper,first,using the geometric data,material data and structure data of product provided by the geometric digital prototype of the product,we analyses the component reliability of the product by reliability simulation based on physics of failure theory.Then taking the results of reliability simulation and components degradation information as inputs to the functional digital prototype and digital performance prototype,we analyze the product reliability by reliability functional simulation.It is shown that this new reliability prediction method can accurately predict the reliability in the product development process.
Reliability prediction reliability simulation
Luo xuegang
China Aero-Polytechnology Establishment,Beijing,100028,China
国际会议
2014 Asia-Pacific International Symposium on Aerospace Technology(2014亚太航空航天技术学术会议)
上海
英文
1-5
2014-09-24（万方平台首次上网日期，不代表论文的发表时间）