半潜式钻井平台系统VRML仿真关键技术研究

摘要

为深入研究半潜式钻井平台结构和功能,建立其仿真系统具有重要意义.按照实际比例建立了钻井平台、钻机井架、绞车、天车、顶驱、游车等的零件及其装配体三维模型,并装配出钻井平台系统模型.在此基础上,研究了半潜式平台系统仿真技术中虚拟现实下VRML文件优化,采用了预优化处理、基于面片数的优化、基于节点复用的优化、基于数据精度的优化以及基于文件压缩的优化等不同的优化技术,设计出半潜式深水钻井平台系统VRML虚拟仿真模型以及系统完整总体结构.%In order to do further research about the structure and function of the semi-submersible drilling platform,the establishment of its simulation system has very important practical significance.According to the actual geometry,the parts and the assembly 3D model were established including the drilling platform,derrick,winch,crown block,top drive,traveling block.The drilling platform system model is assembled,too.Base on these,the VRML file optimization of the semisubmersible platform system simulation technology in the virtual reality was studied.The different optimization techniques were adopted,including the preliminary optimization,the optimization based on the patch number,the optimization of node reuse,the optimization based on data accuracy and based on the file compression.The VRML virtual simulation modeling of the semi-submersible drilling platform and the complete general structure of the system were provided.