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首页> 外文会议>Asian conference on multibody dynamics;ACMD 2010 >Dynamic Analysis and Design Method Study on the Combinedboom System of Portal Crane
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Dynamic Analysis and Design Method Study on the Combinedboom System of Portal Crane

机译：门式起重机combindboom系统的动力学分析与设计方法研究

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摘要

As a main handling device the portal crane is widely used in port, railroad, etc.The crane handling procedure is mainly carried out through its combined-boom system luffing or swing .In general, in order to reduce drive power and improve the operational performance, the luffing trajectory should meet the design requirement. At the same time, structure stress should be secured in the whole process of handling the cargo. Recently, to deal with more heaver and further cargo, the portal crane is becoming more large-scale. So that the large-scale components such as jib elastic deformation effect on large displacement motion cannot be ignored longer. In addition to the structure high speed motion in the process of handling also make the structure dynamic behaviors spending more obvious, specially in the condition of luffing combined with swing. However, the problem for this dynamic behavior brings about to physical design sometimes has no method to solve according to the conventional analysis algorithm and dynamics method. To reduce the deviation caused by the common analysis, design and analysis method based on the multibody is put forward in this thesis. According to the method, the result on the luffing trajectory and stress-time history are analyzed easily. So that it ensure the efficiency and increase the accuracy of the initial design according to the conventional design and analysis method.
机译：门式起重机是主要的搬运设备，广泛用于港口，铁路等领域。起重机的搬运过程主要是通过组合动臂系统的变幅或摆动来进行的，通常是为了降低驱动功率并提高运行性能。 ，变幅轨迹应符合设计要求。同时，在装卸货物的整个过程中应确保结构应力。最近，为了处理更多的杂物和更多的货物，门式起重机正在变得越来越大型。因此，悬臂等弹性变形对大位移运动的影响不容忽视。除了结构在处理过程中的高速运动外，还使结构的动力学行为花费更加明显，特别是在变幅与摆动相结合的情况下。但是，这种动态行为的问题给物理设计带来了问题，而根据常规的分析算法和动力学方法，有时却没有解决的方法。为了减少通用分析引起的偏差，本文提出了基于多体的设计分析方法。根据该方法，可以轻松地分析变幅轨迹的结果和应力时间历史。从而保证了按照常规设计和分析方法的效率，并提高了初始设计的准确性。

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