上海航天
上海航天
상해항천
AEROSPACE SHANGHAI
2012年
3期
54-58
,共5页
夏青%王远达%韩慧伶%孙鹏
夏青%王遠達%韓慧伶%孫鵬
하청%왕원체%한혜령%손붕
可靠性评估%随机应力%鲁棒设计优化%加速退化试验
可靠性評估%隨機應力%魯棒設計優化%加速退化試驗
가고성평고%수궤응력%로봉설계우화%가속퇴화시험
Reliability verification%Stochastic stress%Robust design optimization%Accelerated degradation testing
在随机应力条件下建立加速退化模型,设计加速退化试验并估计模型参数,用数学近似方法推导了可靠性均值和方差的计算模型,分别作为鲁棒优化设计模型的约束与目标函数。燃烧室可靠性设计算例结果表明：该方法不仅使系统设计达到可靠性要求,而且有较高的稳健性,有一定的工程实际意义。
在隨機應力條件下建立加速退化模型,設計加速退化試驗併估計模型參數,用數學近似方法推導瞭可靠性均值和方差的計算模型,分彆作為魯棒優化設計模型的約束與目標函數。燃燒室可靠性設計算例結果錶明：該方法不僅使繫統設計達到可靠性要求,而且有較高的穩健性,有一定的工程實際意義。
재수궤응력조건하건립가속퇴화모형,설계가속퇴화시험병고계모형삼수,용수학근사방법추도료가고성균치화방차적계산모형,분별작위로봉우화설계모형적약속여목표함수。연소실가고성설계산례결과표명：해방법불부사계통설계체도가고성요구,이차유교고적은건성,유일정적공정실제의의。
The accelerated degradation model was established and the accelerated degradation test was designed to estimate model parameters under the stochastic stress in this paper. The expressions of mean and variance of reliability which were constraints and design objective of robust design optimization model were devised using mathematics approximation method. The computational example of some chamber showed that the method could make the system design reach the requirement of the reliability and was robustness, which was valuable in engineering.
