摘要
针对锚泊系统多系统耦合、非线性等特点,提出了基于虚拟样机技术的锚泊系统分析方法。将锚链视为悬链线,采用静力分析方法确定锚泊系统的初始状态。通过对锚泊系统动力学及实验数据的分析,将锚泊系统拟合成非线性系统,并在ADAMS环境下以非线性弹簧约束代替锚泊系统,构建海上作业平台的虚拟样机模型。抓斗挖泥船的仿真实例表明,基于虚拟样机技术的锚泊系统分析可为海上作业平台的虚拟仿真提供可靠的分析平台。
A simulation method for dynamic response analysis of mooring system technology is presented according to its characteristics of muhisystem coupling chain is regarded as catenary to get the initial conditions of mooring system through based on virtual prototype and nonlinearity. Anchor its static analysis. Accord- ing to dynamic analysis of mooring system, mooring system is hypothesized as a nonlinear system by using ex- periment data in different conditions, and is simplified to nonlinear spring constraints to construct a virtual prototype model of offshore platform in ADAMS software. Its feasibility of dynamic analysis based on virtual prototype technology is demonstrated by an application example showing the simulation analysis of grab dred- ger. The simulation results show that the simplified model of mooring system provides a reliable analysis plat- form for the virtual simulation of offshore platform.
出处
《湖北理工学院学报》
2012年第6期1-4,共4页
Journal of Hubei Polytechnic University
基金
湖北理工学院青年项目(项目编号:10yjz11Q)
湖北省高校青年教师深入企业行动计划项目(项目编号:XD2010422)
关键词
虚拟样机
锚泊系统
动力学分析
非线性弹簧
virtual prototype
mooring system
dynamic analysis
nonlinear spring grab dredger
