The numerical analysis on impact caused by the fracture of specimen to Facility for Advanced Structural Testing(FAST)
LI Guo-qiang1,WANG Peng2,SUN jian-yun2
1. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092,China
2. College of Civil Engineering, Tongji University, Shanghai, China
3. China State Construction Technical Center, Beijing 101300,China
The Facility for Advanced Structural Testing (FAST) is planned to be constructed by China State Construction Engineering Corporation Ltd (CSCEC). The maximum allowable value of vertical force is 10800t. It is necessary to consider the impact caused by the sudden fracture of the specimen. This paper simply introduces the design of FAST and isolation system. It focus on the finite element simulation of the impact cause by the sudden fracture of specimen. Using the transient dynamic analysis method by Ansys, the paper use the load step to simulate sudden fracture of the specimen. Time-history curve of X,Y,Z direction of the isolator and the isolator’s force in Z direction can be used as the evaluation index for the impact effect. Through changing the unloading time of load step, the paper compares the effects of unloading time on simulation of impact caused by sudden fracture, and check the requirement of displacement and force of the isolator. It finally give some suggestions about the unloading time of the load step to simulate fracture of the specimen.
李国强1,王鹏2,孙建运2 . 试件断裂对万吨级多功能结构试验系统隔振层影响的数值分析[J]. 振动与冲击, 2016, 35(5): 216-221.
LI Guo-qiang1,WANG Peng2,SUN jian-yun2. The numerical analysis on impact caused by the fracture of specimen to Facility for Advanced Structural Testing(FAST). JOURNAL OF VIBRATION AND SHOCK, 2016, 35(5): 216-221.
[1] 王平安,王杰贤,精密仪器工作台的隔振设计[J].西安建筑科技大学学报,1999,31(3):263-267
WANG Pingan, WANG Jiexian. The design of isolation vibration for precision instrument table[J]. J.Xi' an Univ. of Arch. &Tech. 1999,31(3):263-267
[2] 翁俊.隔振系统振动的传递特性分析及振动评价研究[D].哈尔滨:哈尔滨工业大学,2012:2-5
WENG Jun. Study on Transmission Characteristics and
Vibration Evaluation of Vibration Isolation System[D]. Harbin Engineering University, 2012:2-5
[3] 李银川,方开翔,隔振器参数对船舶动力机械系统隔振性能的影响分析[J].江苏科技大学学报(自然科学版),2006,20(5):10-14
LI Yinchuan, FANG Kaixiang. Effects of Isolation Parameters on Performance of Vibration Isolation
System for Power Machinery in Ship[J]. Journal of Jiangsu University of Science and Technology (Natural Science Edition),2006,20(5):10-14
[4] 刘永明,沈荣瀛, 严济宽. 多层隔振系统冲击响应研究[J].噪声与振动控制, 1996( 3) : 2- 8.
LIU YongMing, SHEN RongYing, YAN JiKuan. Research on Response caused by the Impact of Multilayer Vibration Isolation[J]. Noise and Vibration Control. 1996( 3) : 2- 8.
[5] 庞剑,严济宽,具有刚度非线性双层隔振系统的冲击响应[J].武汉造船.1993(5):1-5
PANG Jian, YAN JiKuan, Response caused by the Impact of double-layer Vibration Isolation System[J].Wuhan Ship building. 1993(5):1-5
[6] 陶懿,周海亭,双层隔振系统冲击响应数值模拟方法的研究[J].噪声与振动控制.2005(3):3-7
TAO Yi, ZHOU HaiTing, Research on Numerical Simulation Calculation of Shock Response in Double-Layer Vibration Isolation System[J]. Noise and Vibration Control.2005(3):3-7
[7] 王新敏,工程结构数值分析[M].北京:人民交通出版社,2007:519-530
WANG XinMin, Numerical analysis of structure[M].Beijing: China Communications Press, 2007:519-530
[8]赵应龙,何琳,黄映云,船舶浮筏隔振系统冲击响应的时域计算[J].噪声与振动控制,2005,2:15-19
ZHAO YingLong, HE Lin, HUANG YingYun, The Computation of Shock Response of Marine Floating Raft Shock-resistant System in the Time Domain.2005,2:15-19
[9] 张秀辉,ANSYS有限元分析从入门到精通[M].北京:机械工业出版社,2012:340-343
ZHANG XiuHui, Learning ANSYS from beginning to professional[M]. Beijing: Machinery Industry Press, 2012:340-343
[10]张志,张兆会,橡胶双层减振与隔振系统冲击响应研究[J].噪声与冲击,2013,32(23):126-130
ZHANG Zhi, ZHANG ZhaoHui, Schock Response of a rubber double-deck vibration isolation system[J]. JOURNAL OF VIBRATION AND CHECK , 2013,32(23):126-130