CAJ | 학술논문

为放大超磁致伸缩致动器的位移，设计了位移传递机构以叠加致动器中超磁致伸缩棒和筒的输出。针对该致动器中棒和筒的径向磁场分布，基于有限元法建立了磁场强度的计算电磁学模型，并利用 ANSYS 软件进行了仿真。通过仿真得到棒和筒上任一点磁场强度值，选取多个截面的磁场强度进行平均计算，得到近输出端、近底座端和中间部位三处不同位置的磁场径向分布规律及位移传递机构相对磁导率对它的影响。研究结果对于位移传递机构材料选择具有重要的意义。
위방대초자치신축치동기적위이，설계료위이전체궤구이첩가치동기중초자치신축봉화통적수출。침대해치동기중봉화통적경향자장분포，기우유한원법건립료자장강도적계산전자학모형，병이용 ANSYS 연건진행료방진。통과방진득도봉화통상임일점자장강도치，선취다개절면적자장강도진행평균계산，득도근수출단、근저좌단화중간부위삼처불동위치적자장경향분포규률급위이전체궤구상대자도솔대타적영향。연구결과대우위이전체궤구재료선택구유중요적의의。
To magnify the displacement of giant magnetostrictive actuator, a displacement transmission mechanism is designed to overlay the output of giant magnetostrictive rod and canister. Electromagnetic calculation model is established based on finite element method and magnetic field distribution is simulated by ANSYS software. Magnetic field strength at any point inside the material and average value of magnetic field strength of diferent sections is obtained. And resultantly radial field distribution at three different positions (near output end, near base end and middle part) and influence of permeability on them is obtained. The result is of important significance for the selection of mechanism body material.