飞机主起落架构型对道面力学响应的影响

张献民; 董倩; 吕耀志

doi:10.3969/j.issn.0258-2724.2014.04.018

飞机主起落架构型对道面力学响应的影响

doi: 10.3969/j.issn.0258-2724.2014.04.018

基金项目:

国家自然科学基金资助项目（51178456）

中央高校基本科研业务费专项资金资助项目（3122013P002）

计量
- 文章访问数: 1108
- HTML全文浏览量: 85
- PDF下载量: 608
- 被引次数: 0
出版历程
- 收稿日期: 2013-09-12
- 刊出日期: 2014-08-25

Mechanical Responses of Pavement under Aircrafts with Different Main Landing Gears

摘要

摘要: 为给飞机和跑道的优化设计提供参考和理论依据，基于弹性层状体系理论，建立了水泥混凝土跑道的三维有限元模型；选取了2组荷载水平相当、主起落架构型差异明显的飞机，对比分析了飞机主起落架构型变化对跑道全宽度位移、应变、板底拉应力以及土基响应深度的影响.模拟结果表明：当荷载相同时，主起落架上机轮总数越多，水泥混凝土道面板位移峰值、板底最大拉应力越小，起落架构型差异导致的道面板位移峰值相差13%左右，板底拉应力相差达35%；起落架间距越小，荷载作用区位移曲线越平缓，荷载作用区拉应变越小，土基响应深度越大，起落架构型变化导致的荷载作用区拉应变相差12%，土基响应深度相差14%；主起落架构型变化对距离荷载作用位置较远区域的竖向位移基本无影响.
- 主起落架构型 /
- 有限元模型 /
- 动荷载系数 /
- 弯沉曲线 /
- 拉应力 /
- 土基响应深度
Abstract: In order to provide a theoretical basis for the optimal design of aircraft and pavement, a finite element model of runway was established based on the elastic layered theory to analyze the mechanical responses caused by changing main landing gears. Two sets of aircrafts with the same loads level but different in main landing gear configurations were chosen. The simulation results show that the change of main landing gear configurations influences dramatically on mechanical responses in loading areas. In the condition that aircraft loads are equal, increasing of the total number of wheels on main landing gears will decrease vertical displacement peaks and tensile stresses on panel bottom, the difference of vertical displacement peaks is up to 13% and the difference of tensile stresses on panel bottom is up to 35%. When the spacing between main landing gears is small, displacement curves for the loading areas are gentle and strains in the loading areas are small, but response depth on soil base is large. The difference of strains is up to 12% and the difference of response depth on soil base is up to 14%. The change of the configurations has little effect on vertical displacements far away from loading areas.
- configuration of main landing gear /
- finite element model /
- dynamic load coefficient /
- deflection curve /
- tensile stress /
- response depth on soil base

HTML全文

参考文献(20)

PHAM V L, ZHAO J, GOO N S. Landing stability simulation of a 1/6 lunar module with aluminum honey-comb dampers[J]. International Journal of Aeronautical and Space Sciences, 2013, 14(4): 356-368.

NIE H, QIAO X, GAO Z J. Dynamic behavior analysis for landing gear with different types of dual-chamber shock struts[J]. Chinese Journal of Aeronautics: English Edition, 1991(4): 235-244.

LEE T W. Dynamic response of landing gears on rough repaired runway[J]. Society of Automotive Engineers Transactions, 1991, 100(Sect1 pt 2): 2569-2578.

HWANG J H, KIM J S. On the approximate solution of aircraft landing gear under nonstationary random excitations[J]. KSME International Journal, 2000, 4(9): 968-977.

KHAPANE, PRASHANT D. Simulation of asymmetric landing and typical ground maneuvers for large transport aircraft[J]. Aerospace Science and Technology, 2003, 7(8): 611-619.

晋萍,聂宏. 起落架着陆动态仿真分析模型及参数优化设计[J]. 南京航空航天大学学报,2003,35(5), 498-502. JIN Ping, NIE Hong. Dynamic simulation model and parameter optimization for landing gear impact[J]. Journal of Nanjing University of Aeronautics & Astronautics, 2003, 35(5): 498-502.

牟让科,罗俊杰. 飞机结构弹性对起落架缓冲性能的影响[J]. 航空学报,1995,16(2): 205-208. MOU Rangke, LUO Junjie. Effect of aircraft structure flexibility on the shock-absorber behavior of landing gears[J]. Acta Aeronautica Et Astronautica Sinica, 1995, 16(2): 205-208.

魏小辉. 飞机起落架着陆动力学分析及减震技术研究[D]. 南京:南京航空航天大学航空宇航学院,2005.

赵永翔. 应变疲劳可靠性分析的新进展与展望[J]. 机械工程学报,2001,37(11): 1-6. ZHAO Yongxiang. New progress and prospect on the strain-based fatigue reliability analysis[J]. Chinese Journal of Mechanical Engineering, 2001, 37(11): 1-6.

顾长鸿,盛一兴,张树林. 飞机起落架上位锁机构可靠性分析[J]. 北京航空航天大学学报,1995,21(4): 18-23. GU Changhong, SHENG Yixing, ZHANG Shulin. Analysis of mechanism reliability of landing gear up-lock system[J]. Journal of Beijing University of Aeronautics & Astronautics, 1995, 21(4): 18-23.

冯蕴雯,国志刚,宋笔锋. 如何确保飞机起落架收放锁系统的可靠性[J]. 西北工业大学学报,2005,23(2): 171-175. FENG Yunwen, GUO Zhigang, SONG Bifeng. Exploring how to ensure reliability of lock system of retracting-lowering landing gear[J]. Journal of Northwestern Polytechnical University, 2005, 23(2): 171-175.

龙江,张铎. 飞机应急放起落架的机构运动可靠性研究[J]. 机械强度,2005,27(5): 624-627. LONG Jiang, ZHANG Duo. Research on motion process reliability of landing gear during emergency extending[J]. Journal of Mechanical Strength, 2005, 27(5): 624-627.

中国民航机场建设集团公司. MHJ 5004—2009 民用机场水泥混凝土道面设计规范[S]. 北京:人民交通出版社,2009.

黄立葵,盛灿花. 车辆动荷系数与路面平整度的关系[J]. 公路交通科技,2006,23(3): 27-30. HUANG Likui, SHENG Chanhua. Relationship between vehicle dynamic amplification factor and pavement roughness[J]. Journal of Highway and Transportation Research and Development, 2006, 23(3): 27-30.

吕耀志,董倩,胡春飞,等. 跑道动荷载与国际平整度指数关系研究[J]. 中外公路,2013,33(3): 74-77. LV Yaozhi, DONG Qian, HU Chunfei, et al. Study on the relationship between dynamic load and international roughness index[J]. Journal of China & Foreign Highway, 2013, 33(3): 74-77.

翁兴中,蔡良才. 机场道面设计[M]. 北京:人民交通出版社,2007: 189.

周正峰,凌建明. 基于ABAQUS的机场刚性道面结构有限元模型[J]. 交通运输工程学报,2009,9(3): 39-44. ZHOU Zhengfeng, LING Jianming. Finite element model of airport rigid pavement structure based on ABAQUS[J]. Journal of Traffic and Transportation Engineering, 2009, 9(3): 39- 44.

仇敏玉,俞亚南. 道路行车荷载影响深度分析[J]. 岩土力学,2010,31(6): 1822-1826. QIU Minyu, YU Yanan. Analysis of influence depth for roads induced by vehicle load[J]. Rock and Soil Mechanics, 2010, 31(6): 1822-1826.

黎冰,高玉峰,魏代现,等. 车辆荷载的影响深度及其影响因素的研究[J]. 岩土力学,2005,26(增刊1): 310-313. LI Bing, GAO Yufeng, WEI Daixian, et al. Research on influential depth of vehicle loads and its influencing factors[J]. Rock and Soil Mechanics, 2005, 26(Sup.1): 310-313.

李洪亮,王晓华,沈可. 天津滨海新区重载交通工作区深度的分析[J]. 土木工程学报,2011,44(增刊1): 158-161. LI Hongliang, WANG Xiaohua, SHEN Ke. Analysis of the working depth of the heavy vehicle loads in Tianjin Binhai New Area[J]. China Civil Engineering Journal, 2011, 44(Sup.1): 158 -161.

施引文献

附加材料(0)

访问统计

点击查看大图

计量

文章访问数: 1108
HTML全文浏览量: 85
PDF下载量: 608
被引次数: 0

飞机主起落架构型对道面力学响应的影响

doi: 10.3969/j.issn.0258-2724.2014.04.018

计量

出版历程

Mechanical Responses of Pavement under Aircrafts with Different Main Landing Gears

计量

出版历程

目录