Analysis of coupled vibration between a long span steelbox baskethandle arch bridge and vehicle by cosimulation based on ANSYS and SIMPACK(PDF)
长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]
- Issue:
- 2019年05期
- Page:
- 68-77
- Research Field:
- 桥梁与隧道工程
- Publishing date:
Info
- Title:
- Analysis of coupled vibration between a long span steelbox baskethandle arch bridge and vehicle by cosimulation based on ANSYS and SIMPACK
- Author(s):
- HUANG Yongming; HE Xuhui; ZOU Yunfeng; SHI Kang; ZUO Taihui; LI Lingyao
- (1. 〖JP2〗School of Civil Engineering, Central South University, Changsha 410075, Hunan, China; 2. National Engineering〖JP〗 Laboratory for High Speed Railway Construction, Central South University, Changsha 410075, Hunan, China; 3. China Merchants Chongqing Communications Technology Research & Design Institute Co., Ltd, Chongqing 400067, China)
- Keywords:
- bridge engineering; steelbox baskethandle arch bridge; coupled vibration; cosimulation; multibody dynamics; field measurement
- PACS:
- -
- DOI:
- -
- Abstract:
- To efficiently solve the characteristics of coupled vibration between a long span steelbox baskethandle arch bridge and vehicle, and consider the nonlinear characteristics of spring damping train system and wheelrail contact, an efficient method for solving complex vehiclebridge coupling systems was proposed, based on making full use of the advantages of ANSYS and SIMAPCK software platform. ANSYS was considered as preprocessing of the method, to establish a refined finite element model of the long span steelbox baskethandle arch bridge. The Lanczos method was used to model analysis, and the HBMAT command was used to extract the key modal information of the bridge as the key input file. The train contact with the wheel rail was established in SIMPACK platform. By reading the key inputs data of ANSYS files on SIMPACK, the dynamic model of the vehiclebridge coupling analysis was established. The finite element interface module (Flex Modal) in SIMPACK was used to construct a virtual rigid body implementation with negligible quality to achieve the coupling of train and bridge. Finally, the dynamic response data of the Xijiang Bridge of Nanguang Railway was used as an example, and the reliability of the method was verified by comparing the calculated value with the measured value. The results show that the cosimulation based on ANSYS and SIMPACK is an effective method to study the coupling vibration between vehicle and bridge. The periodic excitation caused by the unsmoothness of the track or the snake motion of wheel may induce lateral resonance, however, the possibility of vertical resonance is small. In addition, because of the lateral amplitude of the bridge is greatly influenced by unbalance loading of vehicle, the lateral amplitude under singleline vehicle is larger than that of doubleline vehicle. The vertical comfort index and acceleration may not increase monotonically with the running speed due to the influence of excitation frequency. Furthermore, the derailment coefficient, rate of wheel load reduction, vertical comfort index and acceleration are mainly affected by the vertical vibration caused by live load, while the lateral comfort index and acceleration are greatly affected by unbalance loading of vehicle. The results of the study can provide a reference for the design of similar bridge in the future. 2 tabs, 12 figs, 28 refs.
Last Update: 2019-10-16