一种漂浮式风机叶尖气隙数值模拟方法

By calculating the aerodynamic loads, mooring system tension, and six-degree-of-freedom motion of the floating wind turbine, and combining dynamic mesh updates, the shortest distance between the lowest point of the blade disk and the free surface is calculated in real time. This solves the problem of insufficient tip air gap prediction for floating wind turbines and improves the safety assessment of the blades.

CN117610445BActive Publication Date: 2026-07-17SHANGHAI JIAOTONG UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI JIAOTONG UNIV
Filing Date
2023-10-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Currently, there are few research methods for predicting the tip air gap of floating wind turbines, which is insufficient to meet the safety assessment requirements of wind turbine blades in marine environments.

Method used

By calculating the aerodynamic loads, mooring system tensions, and six-degree-of-freedom motion of a floating wind turbine under the combined action of wind, waves, and current, and combining this with dynamic deformable mesh updates, the shortest distance between the lowest point of the blade disk and the free surface is calculated in real time to obtain the tip air gap time history data.

Benefits of technology

It provides data references for the design and optimization of floating wind turbines, and improves the ability to assess the safety of blades in harsh marine environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明提供了一种漂浮式风机叶尖气隙数值模拟方法,所述方法包括:计算漂浮式风机在风浪流联合作用的工况中受到的气动载荷;基于计算得到的总载荷,根据六自由度运动计算公式得到漂浮式风机发生六自由度运动的位移、速度和加速度;基于动态变形网格实现结构物运动导致的网格变形更新,求解更新后流场的自由面分布、速度和压力分布;基于漂浮式风机的六自由度运动,计算风机叶片盘面最低点坐标的时历变化,实时计算该点距离自由面网格节点的最近距离,计算得到叶尖气隙时历数据。本发明方法可用于为漂浮式风机的工程设计和性能优化提供数据参考,具有较高的工程应用价值。
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