CAJ | 학술논문

为减少轮毂质量，改善轮毂应力状况，以1．5 MW水平轴直驱定浆风力机轮毂为研究对象，通过极限载荷分析、工程实体建模、有限元网格划分以及静力学强度分析，得出原轮毂的最大应力值，并以整体减小壁厚的方法对轮毂进行优化设计，用ANSYS软件对不同壁厚减小值下的轮毂做强度分析比较，得到轮毂壁厚减小6 mm时相对最优，使轮毂质量及极限最大应力显著减小，节省了轮毂材料，达到了预期目标。
위감소륜곡질량，개선륜곡응력상황，이1．5 MW수평축직구정장풍력궤륜곡위연구대상，통과겁한재하분석、공정실체건모、유한원망격화분이급정역학강도분석，득출원륜곡적최대응력치，병이정체감소벽후적방법대륜곡진행우화설계，용ANSYS연건대불동벽후감소치하적륜곡주강도분석비교，득도륜곡벽후감소6 mm시상대최우，사륜곡질량급겁한최대응력현저감소，절성료륜곡재료，체도료예기목표。
In order to reduce the quality of the hub and improve the hub stress conditions , this article researches 1.5MW horizon-tal axis direct-drive wind turbine hub .Through limit load analysis , solid modeling , mesh generation and static strength analysis , the maximum stress value of the original hub is obtained .Then for optimizing the design of the hub by reducing the wall thickness , ANSYS software is used to conduct strength analysis and comparison for the different reducing value of wall thickness , a relative optimal value of reducing the wall thickness is attained , the mass and the limited maximum stress of the hub are significantly reduced with material saved and desired objectives achieved .