竹质框架模型受侧向冲击测试及分析

郭金龙; 陈庆军; 郑锦洪; 刘达鑫

doi:10.6052/1000-0879-13-318

竹质框架模型受侧向冲击测试及分析

郭金龙^1, ,,
陈庆军^1,2,3,
郑锦洪¹,
刘达鑫¹

1 华南理工大学土木与交通学院, 广州510641
2 亚热带建筑科学国家重点实验室, 广州510641
3 澳大利亚新南威尔斯大学土木与环境学院CIES 研究中心, 悉尼NSW2052

基金项目: 华南理工大学亚热带建筑科学国家重点实验室自主研究课题项目（2013ZC19）；国家留学基金资助项目.

详细信息

通讯作者:
郭金龙，1988年生，男，博士研究生，主要从事结构动力分析研究.E-mail：jlguo1030@gmail.com

中图分类号: O342
计量
- 文章访问数: 849
- HTML全文浏览量: 12
- PDF下载量: 1134
出版历程
- 收稿日期: 2013-07-28
- 修回日期: 2013-10-19
- 发布日期: 2014-02-14

EXPERIMENT AND ANALYSIS OF A BAMBOO FRAME MODEL UNDER LATERAL IMPACT LOAD

1 School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China
2 State Key Laboratory of Subtropical Building Science, Guangzhou 510641, China
3 Centre for Infrastructure Engineering and Safety, School of Civil and Environmental Engineering, the University of New South Wales, Sydney, NSW 2052, Australia

摘要

摘要: 针对第六届全国大学生结构设计竞赛命题要求设计一个四层缩尺竹质吊脚楼框架，测试其在侧向冲击载荷作用下的加速度响应. 采用有限元软件LS-DYNA，对模型进行模拟分析. 结果表明，有限元计算与加载测试所得的加速度时程曲线吻合较好. 以该模型为基础进行参数分析，结果表明随拉带初始松弛量增大、撞击板质量减小，结构加速度响应增大；相较入射球质量，入射球速度对结构峰值加速度的影响更敏感，随入射球速度增大，结构峰值加速度增大.
- 竹质框架 /
- 侧向冲击 /
- 峰值加速度
Abstract: According to the requirement proposed by the Sixth National Structure Design Contest for college students (NSDCCS), a four-storey bamboo frame model raised floor house is built and experimented under a lateral impact load. The acceleration response is measured.and the FEA software LS-DYNA is used to carry out the finite element analysis to investigate the dynamic mechanism of the frame. The numerical simulation results are in a good agreement with the experimental acceleration time history curves. Furthermore, a parametric analysis is conducted to study the peak of the acceleration. The results indicate that the models with a higher initial relaxation offset of the tension rods or with a lighter contact plate will increase the acceleration of the frame. With regards to the mass of the impact ball, the velocity affects the peak of the acceleration more sensitively, and the peak acceleration increases with the increase of the ball velocity.
- bamboo frame /
- lateral impact /
- peak acceleration

HTML全文

参考文献(14)

1 Batina TJ. A gridless Euler/Navier-Stokes solution algo-rithm for complex aircraft applications. In: 31st AerospaceSciences Meeting & Exhibit, Reno, 1993

2 Morinishi Koji. Gridless type solver-generalized finite dif-ference method. Numerical Fluid Mechanics, 2001, 78: 43-58

3 Kennett DJ, Timme S, Angulo J, et al. An implicit mesh-less method for application in computational fluid dynam-ics. International Journal for Numerical Method in Fluid, 2013, 71(8): 1007-1028

4 Wang Hong, Chen Hongquan, Jacques Periaux. A study ofgridless method with dynamic clouds of points for solvingunsteady CFD problems in aerodynamics. InternationalJournal for Numerical Methods in Fluids, 2010, 64(1): 98-118

5 陈红全. 求解Euler 方程的隐式无网格算法. 计算物理, 2003, 20(1): 9-13 (Cheng Hongquan. Implicit gridless methodfor Euler equations. Chinese Journal of ComputationalPhysics, 2003, 20(1): 9-13 (in Chinese))

6 孙迎丹, 王刚, 叶正寅. AUSM⁺-up 格式在无网格算法中的推广. 空气动力学学报, 2005, 23(4): 511-515 (Sun Ying-dan, Wang Gang, Ye Zhengyin. Extending the AUSM⁺-up scheme into the gridless method. Acta AerodynamicaSinica, 2005, 23(4): 511-515 (in Chinese))

7 王刚, 叶正寅, 蒋超奇等. 高雷诺数下求解NS 方程的无网格算法. 应用力学学报, 2007, 24(3): 348-352 (Wang Gang, Ye Zhengyin, Jiang Chaoqi, et al. Gridless method forNavier-Stokes equations with high Reynolds number. Chi-nese Journal of Applied Mechanics, 2007, 24(3): 348-352(in Chinese))

8 Cai Xiaowei, Tan Junjie, Ma Xinjian, et al. Applicationof hybrid Cartesian grid and gridless approach to movingboundary flow problems. International Journal for Nu-merical Method in Fluid, 2013, 72(9): 994-1013

9 Aaron Katz, Antony Jameson. A comparison of variousmeshless schemes within a unified algorithm. In: 47th AIAA Aerospace Sciences Meeting Including the New Hori-zons Forum and Aerospace Exposition, Florida, 2009

10 Hashemi MY, Jahangirian A. An effcient implicit mesh-lessmethod for compressible flow calculations. InternationalJournal for Numerical Method in Fluid, 2011, 67(6): 754-770

11 Zhou Xing, Xu Houqian. Gridless method for unsteadyflows involving moving discrete points and its applications.Engineering Applications of Computational Fluid Mechan-ics, 2010, 4(2): 276-286

12 周星, 许厚谦. 计算含动边界非定常流动的无网格方法. 力学与实践, 2010, 32(3): 16-21 (Zhou Xing, Xu Houqian. Themeshless method for unsteady flow with moving boundary.Mechanics in Engineering, 2010, 32(3): 16-21 (in Chinese))

13 Sun M, Takayama K. An artificially upstream flux vectorsplitting scheme for the Euler equations. Journal of Com-putational Physics, 2003, 189(1): 305-329

14 Sun M, Takayama K. Conservative smoothig on an adap-tive quadrilateral grid. Journal of Computational Physics, 1999, 150(1): 143-180