摘要升降装置是组成自升式海洋平台的关键部分。升降装置安装在平台主体和桩腿的交接处，它的作用是实现海洋平台主体在桩腿之间的上下来回相对运动、或者是把海洋平台主体固定在桩腿的某一高度位置。自升式海洋平台的升降系统在平台升降过程中承担整个平台的大部分重量和工作载荷，它的性能对平台的正常工作起着非常重要的作用[1-2]。目前在国外最为先进的升降系统是齿轮齿条式升降系统，该升降系统具有对井位准、升降灵活、和可连续升降等优点。82310

本文研究的齿轮齿条传动系统机构是升降系统核心组成部分，它的结构安全的重要程度不言而喻。鉴于此，本文基于Pro/E和Adams针对设计出的升降装置模型进行仿真运动及动力学分析，对升降装置的六小齿轮与齿条啮合进行动态接触分析，对齿轮齿条进行仿真后，进入solver模块，可以得到小齿轮转速、小齿轮和齿条接触的径向力、切向力。通过Pro/E建立三维模型虚拟样机的设计和Adams动力学仿真分析的方法，更容易将问题解决在设计阶段，节省现实设计经费，缩短设计周期。

毕业论文关键词：齿轮齿条；升降装置； Pro/E三维建模； 动力学仿真

Abstract The lifting device is a key part self-elevating offshore platform。 Lifting devices mounted on the platform body and leg junction, its role is to achieve the main offshore platform in the upper and lower leg back and forth between the relative motion, or the offshore platform fixed to the body in a pile height legs。 Self-elevating offshore platform lift system and work load to bear most of the weight of the platform lift platform during its normal working platform performance plays a very important role。 At present, overseas most advanced lift system is rack and pinion lifting system, the lifting system having wells registration, lifting flexible, and continuous lifting and so on。

  In this paper, rack and pinion transmission mechanism is the core component of the lifting system, the importance of its structural safety is self-evident。 Therefore, this paper based on Pro / E and Adams to simulate motion and dynamics analysis for the design of the lifting device model, six small gear meshing with the rack lifting devices for dynamic contact analysis, simulation after rack and pinion, enter solver module, the rotational speed can be obtained pinion, the pinion and the rack contact radial force, tangential force。 3D model of virtual prototype by Pro / E design and Adams dynamics simulation analysis method is easier to solve the problem at the design stage, saving funds realistic design and shorten the design cycle。

Keywords：Rack and pinion;  Lifting device;   Pro/e three-dimensional modeling;   Dynamic Simulation

目  录

第一章  绪论 1

1。1研究背景 1

1。2我国自升式海洋平台发展概况 2

1。3自升式海洋平台市场发展历程与现状 4

1。4自升式海洋平台未来发展趋势 5

第二章  自升式海洋平台齿轮齿条升降模型的建立 8

2。1 PRO的建模基础 8

2。2齿轮参数化模型建立 9

2。3模型装配 14

第三章  ADAMS的理论基础 17

3。1 ADAMS的仿真基础 17

3。2 ADAMS接触理论 19

第四章 齿轮齿条升降系统的动力学分析