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考虑弹性影响的乘波体飞行动力学特性

向锦武 曾开春 聂璐

向锦武, 曾开春, 聂璐等 . 考虑弹性影响的乘波体飞行动力学特性[J]. 北京航空航天大学学报, 2012, 38(10): 1306-1310.
引用本文: 向锦武, 曾开春, 聂璐等 . 考虑弹性影响的乘波体飞行动力学特性[J]. 北京航空航天大学学报, 2012, 38(10): 1306-1310.
Xiang Jinwu, Zeng Kaichun, Nie Luet al. Elastic effects on flight mechanics of waverider[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(10): 1306-1310. (in Chinese)
Citation: Xiang Jinwu, Zeng Kaichun, Nie Luet al. Elastic effects on flight mechanics of waverider[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(10): 1306-1310. (in Chinese)

考虑弹性影响的乘波体飞行动力学特性

基金项目: 国家自然科学基金资助项目(90916006 )
详细信息
  • 中图分类号: V 212.1

Elastic effects on flight mechanics of waverider

  • 摘要: 针对典型的吸气式乘波体构型高超声速飞行器,研究了结构弹性对纵向静态特性和飞行动力学特性的影响.使用当地流活塞理论给出了高超声速非定常气动力模型,并结合简化的超燃冲压发动机模型及弹性机体结构模型,建立了考虑气动/结构/推进耦合的飞行器非线性纵向动力学模型.基于该模型分析了机体弯曲刚度变化对飞行器定常平飞配平参数、飞行包线以及动力学系统开环零极点的影响.结果表明:机体结构刚度降低将使配平升阻比减小,动稳定性变差,并且当其低于某一临界值时,升降舵配平特性将由正操纵变为反操纵.

     

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出版历程
  • 收稿日期:  2012-03-06
  • 网络出版日期:  2012-10-30

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