【作者】 李俊；

【导师】 黄良沛； 张浩；

【作者基本信息】 湖南科技大学 ， 工程硕士（专业学位）， 2017， 硕士

【摘要】 随着现代化工业以及海洋技术的飞速发展和日趋完善,对机械设备的制动性能要求越来越高。液压盘式制动装置运行状态正常与否直接关系到海洋绞车和其拖行设备的安全,因此研究其制动性能的好坏具有重要现实意义与价值。本文首先对海洋绞车液压盘式制动系统的分类以及工作原理进行研究,得到浮动式制动器的结构设计要求。针对海洋绞车的特殊运行要求以及相关参数,设计了一种浮动式液压盘式制动器;对于海洋绞车的不同工况作业,设计了两级制动系统液压站。并运用AMESim仿真软件建立盘式刹车系统的仿真模型,分析其在正常工作、紧急制动和柔性制动三种工况下,制动缸油压、刹车片的位移和速度变化曲线,验证了设计的液压系统的合理性。针对海洋绞车和制动器的设计要求,建立海洋绞车以及制动器的动力学模型和虚拟样机模型。利用SolidWorks、UG等三维作图软件建立精确的机械设备的三维实体模型,分别建立了海洋绞车滚筒以及制动器的三维模型,并以parasolid文件格式导入到ADAMS中建模,添加相关运动副、接触力以及驱动等。再通过ADAMS/Control模块将ADAMS与AMESim有机结合起来,将机械系统导入控制系统及液压系统分析软件AMESim中,从而进行联合仿真。由于绞车在下放或者提升的过程中,会遇到随时停车的状况,因此模拟其在空载和额定负载状态下,仿真得到在紧急制动和柔性制动过程中针对不同的角速度,海洋绞车的制动时间变化以及制动力矩的变化,并与理论数据进行比较,验证了针对该海洋绞车液压制动系统联合仿真的可行性。最后,本文通过搭建的海洋绞车控制与监测系统,通过实验得到不同工况下制动器的制动性能以及测得制动力矩的大小,将实验数据的结果与仿真结果相比较,验证了所设计的液压制动系统的准确性,同时表明联合仿真对于该系统的设计具有重要的研究价值。更多还原

【Abstract】 With the rapid development and perfection of modern industry and marine technology,the braking performance of mechanical equipment is also getting higher and higher.Hydraulic disc brakes are very important components in ocean winches,and their operation status is directly related to the safety of marine winches and towing equipment.Firstly,the classification and working principle of the hydraulic disc brake system of the marine winch are studied,and the structural design require ments of the floating brake are obtained.A floating hydraulic disc brake is designed according to the special operation requirements and related parameters of the marine winch.The two stage braking system hydraulic station is designed for different operation conditions of the marine winch.And use AMESim simulation software to establish simulation model of disc brake system,analysis of the normal work,emergency braking and flexible braking under three conditions,the displacement and velocity curve of brake cylinder,hydraulic brake,verify the rationality of the design of the hydraulic system.According to the design requirements of ocean winches and brakes,the dynamic models and virtual prototype models of ocean winches and brakes are established.The 3D model by using Solid Works and UG software to establish the three-dimensional mapping of mechanical equipment accurately,the 3D model of marine winch drum and brake are established,and the Parasolid file format into the ADAMS model,add the relevant k inematic pair,contact force and driving etc..Then through the ADAMS/Control module,ADAMS and AMESim are combined organically,and the mechanical system is introduced into the control system and the hydraulic system analysis software AMESim,so that the joint simulation can be carried out.Because in the process of decentralization or lifting winch,will meet the stop condition,so the simulation of the load in no-load and rated condition,simulation in emergency braking and flexible braking process according to different angular velocity,braking time changes and changes in ocean winch brake torque,and compared with the theoretical data,verification the feasibility for the co simulation of marine winch hydraulic braking system.Finally,this paper sets up the marine winch control and monitoring system,through the experiment of braking performance under different conditions are measured and the brake braking torque of the size,the experimental data the results are compared with simulation results,to verify the accuracy of the hydraulic braking system design,at the same time that the co simulation has important research value for the design of the system.更多还原