原文传递
Modeling and simulation of Aircraft Nose Landing Gear Emergency Lowering Using Co-simulation Method
| 题名： | Modeling and simulation of Aircraft Nose Landing Gear Emergency Lowering Using Co-simulation Method |
| 正文语种： | 中文 |
| 作者： | Yin Yin |
| 关键词： | nose landing gear emergency lowering co-simulation damping force impact load |
| 摘要： | This paper builds dynamical models and hydraulic system models of retraction/lowering of some regional aircraft nose landing gear respectively based on the software LMS VL motion and AMESim.The simulation analysis result was proved to be credible by checking with that of ground test.The peak oil return pressure with the critical damping force can be obtained by analyzing the hydraulic damping characteristic of actuator cylinder during landing gear emergency lowering based on methods of estimation and co-simulation.The results indicate that the damping characteristic of actuator cylinder plays an important role in emergency lowering.Only when the damping force breaks through the critical value,can the landing gear succeed in emergency lowering and being locked.However,the little damping force will result in great impact load while lowering.Thus,damping force should be changed only when emergency lowering. |
| 会议日期： | 201306 |
| 会议举办地点： | 青岛 |
| 会议名称： | 2013年LMS中国用户大会 |
| 出版日期： | 2013-05-31 |
| 母体文献： | 2013年LMS中国用户大会论文集 |
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