Analysis and Research of Moving Simulation Improvement Algorithms Based on Two-body Floating System

Maoning Jia, Puyang Li, Wenhui Zhang
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Abstract

The effective utilization of wave energy is one of the important means to solve the shortage ofresources. The dual hydraulic PTO floating system (floating system hereinafter), is an important device for converting wave energy. The system is mainly composed of an energy extraction system (PTO system), float, and vibrator. Under the action of wave energy, the floater and vibrator of the floating body system move relatively, which drives the PTO system to generate electricity. Many researchers have studied the motion characteristics ofa floating body system in a heave state and calculated the energy conversion characteristics accordingly. In practice, the floating body system heaves and pitches due to wave energy. We propose an improved motion simulation algorithm for the Double Floating Body System based on the original researchers. The improved motion simulation algorithm adds the floating body’s pitch motion state, considers the floating body’s motion under both heave and pitch, and further analyzes the power conversion characteristics based on the motion characteristics.
基于二体漂浮系统的运动仿真改进算法分析与研究
波浪能的有效利用是解决资源短缺的重要手段之一。双液压PTO浮动系统(以下简称浮动系统)是一种重要的波浪能转换装置。该系统主要由能量提取系统(PTO系统)、浮子和振动器组成。在波浪能的作用下,浮体系统的浮子和振子进行相对运动,带动PTO系统发电。许多研究者研究了浮体系统在升沉状态下的运动特性,并计算了相应的能量转换特性。在实践中,由于波浪能,浮体系统起伏和倾斜。在原有研究成果的基础上,提出了一种改进的双浮体系统运动仿真算法。改进的运动仿真算法增加了浮体的俯仰运动状态,考虑了浮体在升沉和俯仰下的运动,并基于运动特性进一步分析了动力转换特性。
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