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燃烧对液柱射流外弹道射程的增益分析研究
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作者 李小军 盖希强 +2 位作者 李伟 卢薇 谢长友 《弹箭与制导学报》 北大核心 2020年第4期132-135,共4页
为了研究燃烧射流的外弹道特性,通过借鉴液柱射流以及刚体抛物运动等现有理论,建立了燃烧对液柱射流外弹道射程的增益计算模型,进行了以黄皂粉、橡胶为稠化介质的两种油料的燃烧喷射、不燃烧喷射实验,并对两种油料喷射射程燃烧增益计算... 为了研究燃烧射流的外弹道特性,通过借鉴液柱射流以及刚体抛物运动等现有理论,建立了燃烧对液柱射流外弹道射程的增益计算模型,进行了以黄皂粉、橡胶为稠化介质的两种油料的燃烧喷射、不燃烧喷射实验,并对两种油料喷射射程燃烧增益计算值与实际测量值进行了比较分析,验证了燃烧对液柱射流射程增益计算模型的合理性,该模型能够为研究提升喷射火焰射流类燃烧武器射程提供理论参考依据。 展开更多
关键词 燃烧 液柱射流 外弹道 射程增益
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Transition Stage Control of Tail Sitter Aircraft Based on Guardian Maps
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作者 ZHANG Yong CHEN Xinyi 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI CSCD 2020年第2期322-331,共10页
To deal with the high nonlinearities and strong couplings in the transition stage of tailsitter aircraft,an adaptive gainscheduling controller is proposed by combining the guardian maps theory and H∞control theory.Th... To deal with the high nonlinearities and strong couplings in the transition stage of tailsitter aircraft,an adaptive gainscheduling controller is proposed by combining the guardian maps theory and H∞control theory.This method is applied to track the flightpath angle of the transition stage of tailsitter aircraft,and compared with the linear quadratic regulator(LQR)method based on traditional gain scheduling.Simulation results show that the controller based on the guardian maps theory can autonomously schedule the appropriate control parameters and accomplish the stable transition.Besides,the proposed method shows better tracking performance than the LQR method based on traditional gain scheduling. 展开更多
关键词 tailsitter aircraft transition stage guardian maps adaptive gainscheduling controller
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