Random dynamic responses of solar array under thermalstructural coupling based on the isogeometric analysis

被引：3

作者：

Ma, Juan ^{[1
,2
]}

Dai, Changping ^{[1
,2
]}

Wang, Bo ^{[1
,2
]}

Beer, Michael ^{[3
]}

Wang, Anyi ^{[1
,2
]}

机构：

[1] Xidian Univ, Res Ctr Appl Mech, Sch Electromech Engn, Xian 710071, Peoples R China

[2] Xidian Univ, Shaanxi Key Lab Space Extreme Detect, Xian 710071, Peoples R China

[3] Leibniz Univ Hannover, Inst Risk & Reliabil, Fac Civil Engn & Geodet Sci, Callinstr 34, D-30900 Hannover, Germany

来源：

ACTA MECHANICA SINICA | 2023年 / 39卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Random field parameters; Isogeometric analysis; Non-uniform rational B-spline; Thermal-structural coupling; Random dynamic responses; STOCHASTIC FINITE-ELEMENT; INDUCED VIBRATION; RANDOM-FIELDS; FAILURE MODE; SIMULATION; FORMULATION; SPACECRAFT; SPLINES; PLATES; BEAMS;

D O I：

10.1007/s10409-023-22338-x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The spacecraft experiences changes of light region periodically and will be seriously affected by the thermal stress caused by the solar radiation. Based on the isogeometric analysis, the random dynamic responses of solar array with random field parameters under thermal-structural coupling are addressed. Firstly, the heat conduction differential equation and vibration differential equation of the solar array are obtained based on the geometric model constructed with non-uniform rational Bspline. The differential equations under thermal-structural coupling are then solved by using Newmark-beta method to obtain the structural temperature field and the random dynamic responses. Finally, the influences of different random field parameters on structural dynamic response are investigated.

引用

页数：12

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