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基于双曲正弦函数的拓扑优化在热传导结构设计中的应用 被引量:2
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作者 薛红军 陶才勇 党思娜 《航空工程进展》 CSCD 2020年第3期370-379,共10页
电子设备的热传导结构设计是解决飞机电子设备热防护问题的有效方法,基于经验的传统设计方法存在设计周期长,获得的结果性能并不一定优等问题,因此将拓扑优化应用在飞机电子设备散热设计中,能够快速获取较优的结构布局。建立基于双曲正... 电子设备的热传导结构设计是解决飞机电子设备热防护问题的有效方法,基于经验的传统设计方法存在设计周期长,获得的结果性能并不一定优等问题,因此将拓扑优化应用在飞机电子设备散热设计中,能够快速获取较优的结构布局。建立基于双曲正弦函数(sinh函数)插值模型的热传导拓扑优化数学模型,将该模型的算法应用于二维、三维热传导算例,并通过MATLAB编程进行算法实现;该模型与SIMP模型和RAMP模型进行对比,并应用于机载LRM模块导热拓扑优化设计。结果表明:基于sinh函数的插值模型较SIMP插值模型精确,较RAMP插值模型的迭代次数少,能更好地解决热传导结构拓扑优化设计问题。 展开更多
关键词 拓扑优化 sinh函数 传热模型 热传导结构 飞机电子设备
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Representations and Classification of Traveling Wave Solutions to sinh-Grdon Equation 被引量:4
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作者 LIU Cheng-Shi 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第1期153-158,共6页
Two concepts named atom solution and combinatory solution are defined. The classification of all single traveling wave atom solutions to sinh-Gordon equation is obtained, and qualitative properties of solutions are di... Two concepts named atom solution and combinatory solution are defined. The classification of all single traveling wave atom solutions to sinh-Gordon equation is obtained, and qualitative properties of solutions are discussed. In particular, we point out that some qualitative properties derived intuitively from dynamic system method are not true. Finally, we prove that our solutions to sinh-Gordon equation include all solutions obtained in the paper [Z.T. Fu, et al., Commun. Theor. Phys. (Beijing, China) 45 (2006) 55]. Through an example, we show how to give some new identities on Jacobian elliptic functions. 展开更多
关键词 traveling wave solution atom solution exact solution sinh-GSrdon equation elliptic function
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Exact Jacobian Elliptic Function Solutions to sinh-Gordon Equation 被引量:3
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作者 FU Zun-Tao LIU Shi-Kuo LIU Shi-Da 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第1期55-60,共6页
In this paper, two transformations are introduced to solve sinh-Gordon equation by using the knowledge of elliptic equation and Jacobian elliptic functions. It is shown that different transformations are required in o... In this paper, two transformations are introduced to solve sinh-Gordon equation by using the knowledge of elliptic equation and Jacobian elliptic functions. It is shown that different transformations are required in order to obtain more kinds of solutions to the sinh-Gordon equation. 展开更多
关键词 Jacobian elliptic function TRANSFORMATION sinh-Gordon equation
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