内胀式吊桩器的研究

发布时间：2018-03-29 06:38

本文选题：结构设计　切入点：有限元分析　出处：《哈尔滨工程大学》2011年硕士论文

【摘要】：海洋石油平台、海上风电桩基等大型海上施工单位都需要利用大型管桩做为基本搭建单元。由于海上用设备的大型化,就需要专用起吊设备实现对海洋用管桩的搬运、操作等工作。目前我国各家海洋开发公司所使用设备为从国外高额进口或租赁的,国内在该项技术上尚属空白状态。国外设备中有一类是通过将吊具置于管桩内部,通过自身的外胀作用来夹紧管桩的。本课题来源于海油工程公司级科研项目“内胀式吊桩器国产化研制”。论文的研究目的就是研制出具有我国自主知识产权的这种内胀式吊桩设备,最终产生工程样机以运用于实际,减少我国海上建设施工成本。论文通过对内胀式吊桩器的工况进行详细分析,依据内胀式吊桩器的技术指标,制定了总体设计方案,并且通过分析计算验证了方案的可行性。围绕总体设计方案,对工程样机通过三维建模,设计出可以满足工作要求的具体样机结构。通过各种理论计算辅以ANSYS有限元强度分析及ADAMS动力学分析,验证了所设计结构满足工作要求。论文对内胀式吊桩器关键部件镶嵌压块进行了研发。参照国、内外在嵌入式接触提拉方面的相关成果,制备了具有较高强度、硬度的镶嵌压块。并且通过理论分析验证了所设计镶嵌压块满足工作要求。论文最后通过简化内胀式吊桩器工作状态模型,建立了简易试验装置平台。通过对简易模型的施载,验证了管桩可以被起吊并被夹持住。试验结果为一方面吊具上的镶嵌压块没有发生破损,另一方面镶嵌压块与管桩间也没有发生明显的相对滑动。通过此试验也说明了对于这种带有尖顶使被夹持材料表面发生损伤的接触形式,两接触面之间的静摩擦系数将达到一个比较大的数值。
[Abstract]:Large offshore construction units, such as offshore oil platforms and offshore wind power pile foundations, all need to use large pipe piles as basic building units. Because of the large-scale use of offshore equipment, special lifting equipment is required to carry out the handling of offshore pipe piles. Operation and other work. At present, the equipment used by various marine development companies in our country is imported or leased from abroad at a high amount, but the technology is still blank in China. One type of foreign equipment is by placing the hoist inside the pipe pile. This topic comes from Yu Hai oil engineering company grade scientific research project "the domestic manufacture of the internal expansion type hanging pile device". The purpose of this paper is to develop this kind of independent intellectual property right of our country. Intraspecific swelling-type pile lifting equipment, Finally, engineering prototype is produced to be applied to practice and reduce the construction cost of offshore construction in China. Through the detailed analysis of the working conditions of the inner expansion type pile hoisting device, according to the technical index of the inner expansion type hanging pile device, the overall design scheme is established, and the feasibility of the scheme is verified by analysis and calculation. Through the 3D modeling of the engineering prototype, the concrete prototype structure can be designed to meet the requirements of the work, and through various theoretical calculations with ANSYS finite element strength analysis and ADAMS dynamics analysis, it is verified that the designed structure meets the working requirements. In this paper, the research and development of the inlay block of the key component of the inner expansion type pile hoist is carried out. The relative achievements of the reference country and the inside and outside in the field of embedded contact Czochralski are prepared, which have high strength. Hardness of the inlay block. And through theoretical analysis to verify that the design of inlay block to meet the requirements of the work. In the end of the paper, a simple test device platform is established by simplifying the working state model of the internal expansion type pile hoisting device. It is verified that the pipe pile can be lifted and clamped. The test results show that, on the one hand, there is no breakage of the embossed block on the lifting gear. On the other hand, there is no obvious relative sliding between the inlaid press and the pipe pile. This experiment also shows that the contact form with a pointed roof causes damage to the surface of the clamped material, The static friction coefficient between the two contact surfaces will reach a relatively large value.
【学位授予单位】：哈尔滨工程大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH21

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