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首页> 外文期刊>Journal of the aeronautical society of India >ELASTIC RESPONSE OF LIFTING TYPE REENTRY VEHICLES UNDER CLOSED LOOP CONTROL
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ELASTIC RESPONSE OF LIFTING TYPE REENTRY VEHICLES UNDER CLOSED LOOP CONTROL

机译：闭环控制下的提升式再入车辆的弹性响应

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Present paper discusses the modeling, dynamics and closed loop aeroservoelastic analysis of a typical lifting type reentry vehicle. A linear aeroservoelastic formulation for a lifting type reentry vehicle is presented, which is based on the reduced order modeling approach, using the principle of superposition. The aeroservoelastic problem is formulated in the time domain by converting frequency domain unsteady aerodynamic loads, using pure lag-pole based rational function approximation. Second order actuator and third order sensor models are included in the closed loop control architecture, that uses full state feedback pole placement technique (for level-1 flying qualities) to arrive at control gains. The study brings out the effect of closed loop command on the elastic response of a typical lifting type reentry vehicle.
机译：本文讨论了典型的提升式再入飞行器的建模，动力学和闭环气弹塑性分析。提出了一种用于降落式再入飞行器的线性气动弹性公式，该公式基于叠加原理，基于降阶建模方法。通过基于纯滞后极点的有理函数逼近，通过转换频域中的非稳态气动载荷，在时域中提出了气动弹性问题。闭环控制架构中包含二阶执行器和三阶传感器模型，该模型使用全状态反馈极点放置技术（针对1级飞行质量）来获得控制增益。该研究揭示了闭环指令对典型的提升型再入飞行器的弹性响应的影响。

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    Ashok Joshi; Prasanna M Mujumdar; G. R. R. Chari;

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    Department of Aerospace Engineering Indian Institute of Technology Bombay Powai, Mumbai-400 076, India;

    Department of Aerospace Engineering Indian Institute of Technology Bombay Powai, Mumbai-400 076, India;

    PSLV Project Vikram Sarabhai Space Centre (VSSC) Department of Space, ISRO Post Thiruvananthapuram-695 022, India;

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