扁簧式起落架柔性变形的实时状态空间描述

薛志鹏; 贾宏光; 厉明; 马伍元; 李艳辉

doi:10.3788/OPE.20142205.1243

您当前的位置：

首页 >

文章列表页 >

扁簧式起落架柔性变形的实时状态空间描述

微纳技术与精密机械 | 更新时间：2020-08-13

- 扁簧式起落架柔性变形的实时状态空间描述
- Real time description of flexible deformation for leaf spring landing gear by state space method
- 光学精密工程 2014年22卷第5期页码：1243-1250
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所,吉林长春,中国,130033
  2. 中国科学院大学北京,中国,100049
- 作者简介：
- 基金信息：
  
  中国科学院知识创新工程国防科技创新资金资助项目（No.YYYJ-1122）()
- DOI：10.3788/OPE.20142205.1243
  中图分类号： V226;V279
- 收稿日期：2013-08-24，
  
  修回日期：2013-10-09，
  
  纸质出版日期：2014-05-25
- 稿件说明：
移动端阅览
薛志鹏, 贾宏光, 厉明等. 扁簧式起落架柔性变形的实时状态空间描述[J]. 光学精密工程, 2014,22(5): 1243-1250

XUE Zhi-peng, JIA Hong-guang, LI Ming etc. Real time description of flexible deformation for leaf spring landing gear by state space method[J]. Editorial Office of Optics and Precision Engineering, 2014,22(5): 1243-1250
薛志鹏, 贾宏光, 厉明等. 扁簧式起落架柔性变形的实时状态空间描述[J]. 光学精密工程, 2014,22(5): 1243-1250 DOI： 10.3788/OPE.20142205.1243.

XUE Zhi-peng, JIA Hong-guang, LI Ming etc. Real time description of flexible deformation for leaf spring landing gear by state space method[J]. Editorial Office of Optics and Precision Engineering, 2014,22(5): 1243-1250 DOI： 10.3788/OPE.20142205.1243.

摘要

根据无人机地面动力学分析对扁簧式起落架动力学模型的要求，提出了该起落架柔性变形的建模方法。首先，基于模态分析相关理论，通过调整刚度矩阵等效边界约束条件，获得扁簧式起落架的约束模态数据，并采用模态缩减简化模型；然后，采用模态坐标变换解耦振动微分方程，建立状态空间模型描述扁簧式起落架的动力学特性；最后，设计了静力学、动力学仿真测试以及扁簧落震实验对所建扁簧状态空间柔性模型进行验证。结果表明：静力条件下，状态空间模型与有限元软件静力分析结果仅有0.07%的误差，验证了柔性模型计算的准确性；另外，包含柔性状态空间模型的落震仿真模型的仿真步长为1ms，与落震实验结果的误差小于5%，满足飞行仿真的要求。实验显示，提出的柔性建模方法可为多体动力学刚柔混合模型中柔性模型的建立提供参考。

Abstract

According to the requirements of Unmanned Aerial Vehicle(UAV)ground dynamic analysis

a leaf spring landing gear dynamics model was proposed to accurately reflect the dynamic characteristics of leaf spring deformations.On the basis of modal analysis

the leaf spring landing data were obtained by using the finite element method through modifying stiffness matrix and the model was simplified by modal reduction.After dissolving decoupling vibration differential equations by modal coordinate transformation

a state space model was constructed to describe the dynamics of the leaf spring landing gear. Finally

statics

dynamics simulation tests as well as the leaf spring drop experiments were designed to validate the flexible model.These results demonstrate that the results from state-space model and from finite element software static analysis have only 0.07% error under static conditions.The deviation of drop simulation with this model from real drop experiment results is about 5% when its real-time simulation step is 1 ms

which satisfies the flight simulation requirements.

关键词

Keywords

references

MICHAEL R, HATCH.Vibration Simulation Using Matlab and ANSYS[M].Chapman & Hall/CRC, 2001.

GTEBORG.Dynamic Analysis of Railway Bridges Usingthe Mode Superposition Method.Sweden:Chalmers University of Technology, 2007.

黄欢.柔性机械臂的模态综合建模及其动力学分析.浙江:浙江工业大学, 2005. HUANG H.Dynamic Analysis of Flexible Manipulator Arms by Component Mode Synthesis.Zhejiang:Zhejiang University of Technology, 2005.

KURSAT H C, ALLAN E W, IBRAHIM AKINCI I.Deformationbehaviour simulation of an apple under drop case by finiteelement method [J].Journal of Food Engineering, 2011, 104 (2):293-298.

王勇, 王英勋. 无人机滑跑纠偏控制[J]. 系统仿真学报, 2008, 29(5):142-149. WANG Y, WANG Y X.Lateral deviation correction control for UAV taxiing [J].Journal of System Simulation, 2008, 29(5):142-149.(in Chinese)

吴大方, 赵星, 贺小帆, 等. 飞机起落架落震试验中机轮水平冲击载荷测量方法的研究[J]. 机械强度, 2010, 32(5):729-734. WU D F, ZHAO X, HE X F, et al..Study on measurement method of horizontal impact load in aircraft landing gear drop test [J].Journal of Mechanical Strength, 2010, 32(5):729-734.(in Chinese)

厉明, 纪勇, 贾宏光, 等. 基于快速仿真原型的飞行器半物理仿真系统[J]. 光学精密工程, 2008, 16(10):1949-1955. LI M, JI Y, JIA H G, et al..Hardware-in-closed-loop simulation system for aircraftbased on rapid simulation prototype[J].Opt.Precision Eng., 2008, 16(10):1949-1955.(in Chinese)

张志成, 石要武. 利用状态空间模型联合估计波达方向和频率[J]. 光学精密工程, 2011, 19(4):916-921. ZHANG ZH CH, SHI Y W.Estimation of direction-of-arrival and frequency based on state-space model [J].Opt.Precision Eng., 2011, 19(4):916-921.(in Chinese)

王忠素, 翟岩, 梅贵, 等. 空间光学遥感器反射镜柔性支撑的设计[J]. 光学精密工程, 2010, 18(8):1833-1841. WANG ZH S, ZHAI Y, MEI G, et al..Design of flexible support structure of reflector in space remote sensor[J].Opt.Precision Eng., 2010, 18(8):1833-1841.

李建微, 陈国栋. 虚拟针灸系统中的人体皮肤变形研究与实现[J]. 系统仿真学报, 2010, 22(3):656-659. LI J W, CHEN G D.Research and realization on skin deformation for virtual acupuncture system[J].Journal of System Simulation, 2010, 22(3):656-659.(in Chinese)

DOUG L, JAMES, DINESH K P.Dynamic response textures for real deformation simulation with graphics hardware[J].Proceedings of SIGGRAPH, 2002, 6(2002):65-72.

CHEN J X, WANG R L, WU H F.Research of dynamic simulation of machine gun considering elastic tripod mount.Third International Conference on Measuring Technology and Mechatronics Automation, shanghai:ICMTMA, 2011:1072-1074.

浏览量

514

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

双振头超声固结振动装置设计及实验

航空光电平台两轴快速反射镜结构设计

全电推进GEO卫星一箭双星结构模态频率分析

大口径光学元件疵病检测仪的结构设计

模态方法下的悬臂梁/类悬臂梁弹性构件的动力学建模