The force center theory and the design method with the theory is established for bi axial self synchronous shaker with elliptic plane movement.
建立了双轴自同步平动椭圆振动筛的力心理论和利用力心理论设计的方法。
This paper gives two kinds of calculation methods of natural frequency of a mass-even elliptic column which oscillates in miniamplitude on a plane, obtains two formulas of natural frequency.
本文给出了匀质椭圆柱体在平面上作无滑动的微幅摆动之固有频率的两种计算方法，得到两个固有频率的计算公式。
This paper presents some equations of adjoint motion for spacecrafts moving in elliptic orbit of different plane.
本文给出在非共面椭圆轨道上运行的航天器的伴随运动方程。
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