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工程力学  2015 

基于拓扑优化技术的升力面结构颤振抑制设计

DOI: 10.6052/j.issn.1000-4750.2013.07.0660

Keywords: 升力面,颤振抑制,拓扑优化,简化模型,模态分析

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Abstract:

导弹在高速飞行的过程中,会出现升力面颤振问题,可在短时间内导致导弹结构破坏甚至解体。为了改善升力面颤振特性,并让设计过程更加科学和高效,结合拓扑优化技术,开发了相应的优化程序应用于导弹升力面结构颤振抑制设计,获得比原始设计方案拥有更大颤振临界速度的升力面结构。所设计的方法具有如下优点:相比传统的配重等方法,从拓扑优化的新思路高效、准确地获得新构型;将拓扑优化的前沿技术应用到改善飞行器升力面颤振特性的实际工程问题上;将颤振这种复杂的流固耦合问题从结构动力学问题逐步简化为静力学模型,用拓扑优化方法解决。

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