深水勘察船基盘被动升沉补偿系统的设计研究

摘要

在深水勘察船升沉运动时,为使牵引基盘钢丝绳的拉力保持在一定的范围,设计了基盘被动升沉补偿系统.介绍了基盘被动升沉补偿系统的方案和工作原理,建立了基盘被动升沉补偿系统的数学模型,分析了钢丝绳对分析部件的拉力.对补偿系统中的滑轮组倍率、液压缸直径、液压缸行程和蓄能器总容积这4个主参数进行了分析设计,并分析了补偿系统中钢丝绳对基盘的拉力.最后针对具体的勘察船升沉运动和作业水深的设计条件以及钢丝绳对基盘的拉力范围的设计要求,通过对补偿系统中的一些设计参数的取值,对补偿系统中的主参数进行了设计计算,并对设计的补偿系统中钢丝绳对基盘的拉力进行了仿真.仿真结果表明,钢丝绳对基盘的拉力达到了设计要求.这为相关设计人员对基盘被动升沉补偿系统的设计提供了理论指导.%This paper focused on the passive heave compensation system for base plate used in the deep-water exploration ship. The passive heave compensation system for base plate was utilized to keep the tension in the wire rope within certain range when the deep-water exploration ship was heaving with the sea wave. The scheme and the working principle of passive heave compensation system for base plate were presented. The mathematic models on the passive heave compensation system were constructed. The tension of the wire rope pulling the study unit was analyzed. The main parameters including the ratio value of the pulley group, the diameter of the compensation cylinder, the stroke of the compensation cylinder and the total volume of the accumulator in the passive heave compensation system were analyzed and expressed. Finally according to the design conditions of the specific heave motion of the deep-water exploration ship, the specific operation water depth and design requirements of the tension of the wire rope pulling base plate in the passive heave compensation system, the specific main parameters of passive heave compensation were calculated and the tension of the wire rope pulling base plate was simulated through some known parameters. The simulation result verifies the tension meets the design requirements. This provides an important theoretical guidance for actual designing of passive heave compensation device for base plate used in deep-water exploration ship.