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    题名 作者 年代 出处 被引量
1“磁阻力伞”三维数值模拟初步结果显示文摘基于Bush于1958年提出的外加磁场与电离等离子体相互作用产生的电磁力可以增加高速进入黑障区飞行器的阻力,通过三维磁流体力学控制方程(MHD)数值仿真模拟,做了不同磁场强度条件的参数对比和受力分析研究,发现飞行器所受的磁阻力随着磁场强度增强显著增加.当磁场强度为0.4 T时,飞行器所受磁阻力可达25 kN,弓激波也远离飞行器表面.张绍华 赵华 杜爱民 曹馨 2013中国科学:技术科学2013,43,11:4
2Nonlinear vibration of an elastically restrained tapered beam显示文摘This paper presents the analytical simulation of an elastically restrained tapered cantilever beam using the energy balance method(EBM) and the iteration perturbation method(IPM).To assess the accuracy of solutions,we compare the results with the harmonic balance method(HBM).The obtained results from EBM and IPM are in excellent agreement with HBM results.The results show that both methods can be easily extended to other nonlinear oscillations and it can be predicted that both methods can be found widely applicable in engineering and physics.KARIMPOUR S. GANJI S.S. BARARI A. IBSEN L.B. DOMAIRRY G. 2012Science China(Physics,Mechanics & Astronomy)2012,55,10:2
33-D numerical calculation of magnetic drag parachute显示文摘The concept of using an externally applied magnetic field to add the drag force of a hypersonic reentry vehicle during the blackout was proposed by Bush in 1958.The increased drag force is caused by electromagnetic force that is introduced by interaction between the applied magnetic field and the weakly ionized airflow around the reentry vehicle.We investigated the influences of magnetic field intensities on the drag forces of a reentry vehicle by three dimensional(3-D)magnetohydrodynamics(MHD)simulation.The results showed that the drag fore exerted on the vehicle reached 25 kN when the magnetic field was 0.4 T.The drag force increased with the enhanced intial magnetic field.The bow shock was also pushed far away from the vehicle when the magnetic field was strengthened.ZHANG ShaoHua ZHAO Hua DU AiMin CAO Xin 2013Science China(Technological Sciences)2013,56,8:2
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