| DYNAMIC OPTIMIZATION OF THERMAL STRUCTURE |
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| 作者姓名： | Chen Jifeng Duan Degao |
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| 作者单位： | Chen Jifeng; Duan Degao(8-th Dep，Northwestern Polytechnical University，Hi'an，China，710072)Wang Jingen(3-rd Dep，Air Force Missiie Institute，Shaanxi，China，7 1 3800) |
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| 摘 要： | ＤＹＮＡＭＩＣＯＰＴＩＭＩＺＡＴＩＯＮＯＦＴＨＥＲＭＡＬＳＴＲＵＣＴＵＲＥＣｈｅｎＪｉｆｅｎｇ；ＤｕａｎＤｅｇａｏ（８－ｔｈＤｅｐ，ＮｏｒｔｈｗｅｓｔｅｒｎＰｏｌｙｔｅｃｈｎｉｃａｌＵｎｉｖｅｒｓｉｔｙ，Ｈｉ＇ａｎ，Ｃｈｉｎａ，７１００７２）Ｗａｎｇ...
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DYNAMIC OPTIMIZATION OF THERMAL STRUCTURE |
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| Chen Jifeng, Duan Degao.DYNAMIC OPTIMIZATION OF THERMAL STRUCTURE[J].Chinese Journal of Aeronautics,1994(3). |
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| Authors: | Chen Jifeng Duan Degao |
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| Abstract: | he temperature distnbution on the surface of a flight vehicle and the va-riation of the modulus of elasticity with respect to temperature are considered. The minimum weight structural design with constraints on frequency, on the coordinates ofmodal nodes and on the upper and lower bounds of the design vanables are studied us-ing Kuhn-Tucker conditions as optimal cntenon. The vanation of the flrst three ordernatural frequencies, modal shapes and minimum structural weight vs temperature gra-dient are discussed. It is pointed out that it is imperative to take into account the effectof aerodynamic heating on structural dynamic optimization. Calculation example showsthat the method obtained is feasible and efficient. |
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| Keywords: | thermal stresses dynamic structural analysis structural design optimization |
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