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- The semi-active control of helicopter ground resonance by using magneto-rheological (MR) damper has been investigated in this thesis. 本文研究了应用磁流变阻尼器的直升机“地面共振”半主动自适应控制问题。
- helicopter ground resonance 直升机地面共振
- Simulation calculations show the effectiveness of suppressing “ground resonance” of helicopter by the methods mentioned. 仿真计算表明了这些方法对抑制直升机“地面共振”的有效性。
- The method of eigenvalue analysis is used to investigate the ground resonance stability of the helicopter rotor/body coupled system with two connections of dampers. 采用特征分析法计算了两种减摆器连接形式的直升机地面共振稳定性。
- An analytical method of ground resonance dynamic stability countering the helicopters with ski landing gears is provided. 针对滑橇式起落架直升机,提供了一种“地面共振”动力稳定性分析的方法。
- Optimal Output Feedback Control for "Ground Resonance" of Helicopter 直升机“地面共振”的输出反馈最优控制
- The shipwrecked sailors were rescued by helicopter. 遭遇海难的水手已经被直升机救起。
- The fox went to ground under a rocky escarpment. 狐狸钻进了石崖下面的洞里。
- The helicopter had off when we got here. 当我们到达时,直升机已经起飞了。
- We were whirled away in a helicopter. 直升机迅速把我们运走。
- The helicopter hovered over the house. 直升飞机停留在那房子上空。
- The ground was covered with ferns. 地面上长满了羊齿植物。
- Food is being lifted in by helicopter. 食品正用直升机空运进来。
- The helicopter landed with Joe at the controls. 直升飞机在乔的操纵下降落。
- He lifted a pail of water from the ground. 他把一桶水从地上提了起来。
- Rachel who died last week was still above ground. 雷切尔上星期去世，现在还没安葬。
- "Helicopter" is clipped to "copter". "Helicopter"可被缩略成"copter"。
- The criminal escaped by a helicopter. 罪犯乘直升机逃走了。
- This car really comes into its own on rough ground. 这辆汽车在颠簸的路上才真正显示出它独特的性能。
- They put some wreathes on the ground. 他们把一些花环放在地上。
