论文部分内容阅读
为减小阀用超磁致伸缩致动器的体积,提出一种新型超磁致伸缩致动器,设计了其关键部件,最后通过实验分析了其静、动态特性。该新型超磁致伸缩致动器采用非磁性不锈钢套筒安装超磁致伸缩筒料和棒料的结构进行位移传递。设计了以碟簧为核心的预压机构、超磁致伸缩棒料和筒料、位移传递套筒、驱动线圈等超磁致伸缩致动器关键部件。实验表明,该致动器在工作区段最大输出位移可达100μm,且在低频驱动(0～200 Hz)下动态特性良好。该新型超磁致伸缩致动器可以在保证与传统超磁致伸缩致动器低频输出特性基本一致的前提下减小了自身体积。
In order to reduce the volume of Giant Magnetostrictive Actuator, a new type of Giant Magnetostrictive Actuator is designed and its key components are designed. Finally, the static and dynamic characteristics of Giant Magnetostrictive Actuator are analyzed experimentally. The new Giant Magnetostrictive Actuator uses a non-magnetic stainless steel sleeve to mount the Giant Magnetostrictive Barrel and Bar Structure for displacement transfer. The key components of the giant magnetostrictive actuator, such as the pre-compression mechanism with the disc spring as the core, the giant magnetostrictive rod material and the cylinder material, the displacement transfer sleeve and the driving coil, are designed. Experiments show that the actuator has a maximum output displacement up to 100μm in the working section and a good dynamic performance at low frequency (0-200 Hz). The new giant magnetostrictive actuator can reduce its own volume under the premise of ensuring the low frequency output characteristic of the conventional giant magnetostrictive actuator.