海洋平台起重机起升机构液压故障仿真研究

发布时间：2019-05-21 22:12

【摘要】：海洋平台起重机是海洋平台中进行石油开采必不可缺的辅助设备,一般每个海洋平台都要有一台海洋平台起重机。在海洋平台起重机液压系统出现故障时,往往会使得海洋平台起重机不能作业。然而,海洋平台起重机液压系统故障原因较为复杂,常规的维修方法是：海洋平台起重机液压系统出现故障时,驻守人员电话报告给陆地总部,然后由总部派遣技术人员到平台上进行调研,之后回到陆地编制对应的维修方案。这种维修方法往往耗时耗力,而且效果还不一定能尽人意。而现场调研技术人员参差不齐,这又直接影响了技术方案实施的成功率。如果在陆地总部派遣技术人员前往海洋平台前,就可以通过一种有效的方法来预先判断液压系统故障的可能成因,然后现场调研就会更加有针对性,并且可以携带对应的故障诊断设备到现场,这将会大大提高海洋平台起重机液压系统故障维修的成功率。本文基于AMESim软件建立了海洋平台起重机起升机构的仿真模型,通过现场试验验证了仿真模型的正确性；在验证后的仿真模型基础上进行了海洋平台起重机液压系统故障研究,得出了实际液压系统故障诊断数据库的样本,为海洋平台起重机液压系统的维修和诊断提供了理论依据,同时还为海洋平台起重机液压故障诊断专家系统的开发打下了基础。另外,本文还介绍了一种基于仿真的海洋平台起重机液压系统故障排查方法,并与常规维修方法对比,阐明了新方法的效率和优点,为实际海洋平台起重机液压系统的故障维修提供了一种手段。最后,本文总结了三类海洋平台起重机机构的通用液压仿真模型,为各类起重机机构液压系统的建模提供了一种比较高效的仿真建模方法。本文的故障仿真方法对于确定海洋平台起重机液压系统故障机理和开发液压系统故障诊断专家系统等具有较重要意义；应用案例也进一步证明了该方法的科学性；同时本文提出的起重机液压机构通用仿真模型建模方法的高效性也在工程实际中得到证明。
[Abstract]:Offshore platform crane is an indispensable auxiliary equipment for oil exploitation in offshore platform. Generally, each offshore platform should have an offshore platform crane. When the hydraulic system of offshore platform crane fails, it often makes the offshore platform crane unable to work. However, the causes of hydraulic system failure of offshore platform crane are more complex. The conventional maintenance methods are as follows: when the hydraulic system of offshore platform crane fails, the stationed personnel report to the land headquarters by telephone. Then the headquarters sends technical personnel to the platform to carry on the research, then returns to the land to compile the corresponding maintenance plan. This maintenance method is often time-consuming and labor-consuming, and the effect is not necessarily satisfactory. However, the field investigation and technical personnel are uneven, which directly affects the success rate of the implementation of the technical scheme. If the technical personnel are sent to the offshore platform at the land headquarters, the possible cause of hydraulic system failure can be pre-judged by an effective method, and then the field investigation will be more targeted. And the corresponding fault diagnosis equipment can be brought to the site, which will greatly improve the success rate of hydraulic system fault maintenance of offshore platform crane. In this paper, the simulation model of lifting mechanism of offshore platform crane is established based on AMESim software, and the correctness of the simulation model is verified by field test. On the basis of the verified simulation model, the fault research of hydraulic system of offshore platform crane is carried out, and the sample of fault diagnosis database of actual hydraulic system is obtained, which provides a theoretical basis for the maintenance and diagnosis of hydraulic system of offshore platform crane. At the same time, it also lays a foundation for the development of hydraulic fault diagnosis expert system for offshore platform crane. In addition, this paper also introduces a fault detection method of offshore platform crane hydraulic system based on simulation, and compares it with the conventional maintenance method, and expounds the efficiency and advantages of the new method. It provides a means for fault maintenance of hydraulic system of offshore platform crane. Finally, this paper summarizes the general hydraulic simulation model of three kinds of offshore platform crane mechanism, and provides a more efficient simulation modeling method for the modeling of hydraulic system of all kinds of crane mechanism. The fault simulation method in this paper is of great significance for determining the fault mechanism of hydraulic system of offshore platform crane and developing the expert system of hydraulic system fault diagnosis, and the application case further proves the scientific nature of the method. At the same time, the efficiency of the general simulation model modeling method of crane hydraulic mechanism proposed in this paper has also been proved in engineering practice.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH21

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