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推力矢量喷管设计与气动特性分析研究 被引量:6
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作者 陈玲玲 杨青真 李岳峰 《科学技术与工程》 北大核心 2012年第6期1304-1307,共4页
二元矢量喷管结构简单,隐身特性好,在多种隐身飞机上得到了应用。发展了一种"圆转方"二元喷管型面设计方法,基于此方法设计了二元喷管和两型矢量喷管。一型通过二元喷管壁面几何偏转实现,另一型由塞式中心体偏转实现。数值模... 二元矢量喷管结构简单,隐身特性好,在多种隐身飞机上得到了应用。发展了一种"圆转方"二元喷管型面设计方法,基于此方法设计了二元喷管和两型矢量喷管。一型通过二元喷管壁面几何偏转实现,另一型由塞式中心体偏转实现。数值模拟了"圆转方"喷管以及这两型矢量喷管的内外流场。对其推力系数、流量系数、有效推力矢量角等性能参数进行了计算和分析对比,给出了对二元矢量喷管设计具有参考价值的推力矢量角的影响因素及其影响规律。 展开更多
关键词 圆转方二元喷管 推力矢量 几何偏转 中心体偏转 数值模拟
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Comparison Between Two Solutions Based on the Relationship of Load-deflection Character of a Large Deflection Rubber Circular Plate
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作者 段浩 胡宗武 +1 位作者 杨赪石 黎佑铭 《Journal of Shanghai Jiaotong university(Science)》 EI 2003年第1期67-70,共4页
The rubber circular plate is considered as a kind of membrane. Based on the character that there exists no bending moment inside a membrane, the geometric behavior of the rubber circular plate in expanding state was d... The rubber circular plate is considered as a kind of membrane. Based on the character that there exists no bending moment inside a membrane, the geometric behavior of the rubber circular plate in expanding state was described with the aid of a group of mathematic method. The relationship between deflection and load was attained by means of calculating stress and strain inside the curved surface of rubber plate. Meantime, based on Hencky method, the relationship between deflection and load was attained and considered as the Hencky solution. The different results given rise by the two different resolving methods were compared. The deviation results from the Hencky method was discussed, and a kind of correcting method was put forward. 展开更多
关键词 rubber circular plate large deflection LOAD geometric character immediate numerical solution Hencky solution
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