基于虚拟样机技术的岸桥车梁耦合振动仿真  

Container crane trolley-boom coupling vibration simulation based on virtual prototype

作　　者：童民慧[1,2] 邱惠清[1] 卢凯良[2] 

机构地区：[1]同济大学机械与能源工程学院,上海201804 [2]上海海事大学物流工程学院,上海201306

出　　处：《计算机应用》2016年第A01期192-195,共4页journal of Computer Applications

基　　金：国家863计划项目(2009AA043000)

摘　　要：岸桥上小车与大梁存在耦合相互作用,小车的运行速度受到极大的限制,一旦速度超过限制岸桥就会产生一系列的安全问题。采用计算机虚拟样机技术,对体积庞大、小车运行速度高,结构耦合振动特性明显岸桥进行仿真模拟,求得其耦合振动响应才能对其进行有效控制。运用理论分析和实验的方法对岸桥结构的动态特性进行分析,采用车梁耦合理论分析和实测相结合的方法研究岸桥结构的耦合振动。基于车梁耦合结构的振动响应分析理论进行了深入的探讨,建立岸桥车梁耦合的振动响应谱。运用虚拟样机技术进行计算机仿真分析与结构动态测试,获得结构在车梁耦合下的动态响应数据;根据结构的振动数据,找出影响小车速度提高的各项因素,为岸桥向更大前伸距、更高速度和装卸效率发展提供理论依据。There exists a coupling interaction between the trolley and the girder on the quay container crane（ QC）,which limits considerably the trolley traveling speed,because a range of safety hazards may be caused to the QC,once the speed limit is exceeded.Computerized virtual prototype technology was employed to simulate the QC with large volume,high trolley speed,and evident vibration.Only when the coupled vibration response is found can it be possible to control effectively.The QC structure was analyzed for its dynamic characteristics using theoretic analysis and test methods whereas the QC structure was analyzed for its coupled vibration combining trolley-girder coupling theory with actual measurement.An in-depth discussion was made about vibration response analysis theory based on trolley-girder coupling structure,and QC-trolley-girder coupled vibration response spectra were created.Virtual prototype technology was used to make computerized simulation,and structural dynamic testing method was used to find the dynamic response data under trolley-girder coupling condition.With structural vibration data,different factors were identified to influence a higher trolley speed,so that theoretical references were offered to help bank-bridges to get a larger outreach,a higher speed,and a greater loading and unloading efficiency.

关 键 词：岸桥 虚拟样机 动态响应 车梁耦合 高速小车 耦合振动 弹性体梁 

分 类 号：U653.921[交通运输工程—港口、海岸及近海工程]