CAJ | 학술논문

叶片作为风力机的重要部件，是极易发生振动的细长弹性体。叶尖小翼虽可增加风力机的输出功率，但必然对叶片的结构强度产生影响。选定叶片的材料参数，应用有限元分析软件ANSYS对带小翼与不带小翼叶片进行模态分析，确定叶片的各阶模态振型、频率、最大变形量及最大应力，并对各阶模态结果进行对比分析，得出在重力预应力作用下叶尖小翼对风力机模态分析结果的影响。
협편작위풍력궤적중요부건，시겁역발생진동적세장탄성체。협첨소익수가증가풍력궤적수출공솔，단필연대협편적결구강도산생영향。선정협편적재료삼수，응용유한원분석연건ANSYS대대소익여불대소익협편진행모태분석，학정협편적각계모태진형、빈솔、최대변형량급최대응력，병대각계모태결과진행대비분석，득출재중력예응력작용하협첨소익대풍력궤모태분석결과적영향。
As an important component of a wind turbine ,the blade is a slender elastic body which is a vulnerable to vibration . Though tip wing lets could increase the output power of a wind turbine ,it will have an impact to structure strength of the blade . Apply the finite element analysis software ANSYS to conduct modal analysis for the blade of a wind turbine which has a small wing or not and has different small wings .Compare various order modal shape ,various order frequency ,various order maximum deformation and various order maximum stress to obtain the impact of small wing of the blade with gravity prestress to modal anal -ysis.