计算物理
計算物理
계산물리
Chinese Journal of Computational Physics
2015年
5期
514-522
,共9页
马智博%殷建伟%李海杰%刘全
馬智博%慇建偉%李海傑%劉全
마지박%은건위%리해걸%류전
数值模拟%不确定度量化%校准%可靠性认证
數值模擬%不確定度量化%校準%可靠性認證
수치모의%불학정도양화%교준%가고성인증
numerical simulation%uncertainty quantification%calibration%reliability certification
当存在众多不确定输入因素时,不确定度的传递分析往往导致对数值模拟不确定度的过高估计。利用校准行为能够消减系统级数值模拟中认知不确定度的客观机制,提出一个综合利用已有系统级试验对比信息和新增建模与模拟传递信息的不确定度量化方法,结合一个虚拟试验的例子对该方法进行展示和验证。
噹存在衆多不確定輸入因素時,不確定度的傳遞分析往往導緻對數值模擬不確定度的過高估計。利用校準行為能夠消減繫統級數值模擬中認知不確定度的客觀機製,提齣一箇綜閤利用已有繫統級試驗對比信息和新增建模與模擬傳遞信息的不確定度量化方法,結閤一箇虛擬試驗的例子對該方法進行展示和驗證。
당존재음다불학정수입인소시,불학정도적전체분석왕왕도치대수치모의불학정도적과고고계。이용교준행위능구소감계통급수치모의중인지불학정도적객관궤제,제출일개종합이용이유계통급시험대비신식화신증건모여모의전체신식적불학정도양화방법,결합일개허의시험적례자대해방법진행전시화험증。
Propagation analysis often overrate uncertainty of numerical simulation, especially as many uncertain inputs exist. Taking advantage of the reality that calibration can reduce epistemic uncertainty of system?level numerical simulation, a method for uncertainty quantification is offered synthetically using comparison information based on available test data and additional propagation information of modeling and simulation. An example with virtual test is displayed in which the method is demonstrated and validated.