主动 1.(能够造成有利局面) initiative 主动作某事 do sth. on one's own initiative; do sth. of one's own accord; 争取主动 try to gain the initiative; contend for the initiative; 主动为人们做好事 be active in doing good to men; 主动求婚[爱尔兰] take the initiative in courtship; 她不愿意主动这么做。 she does not like to do so from her own initiative. 他工作很主动。 he displays great initiative in his work.2.[机械工程] driving; 主动报价 unsolicited offers; 主动导航 active homing; 主动舵 active rudder; main rudder; 主动滑轮 driving pulley; feed pulley; 主动皮带轮 drive pulley; 主动注意 [心] active attention
Similarly to other methods for smart rotor , the most important and difficult problem is the design of the actuator . first , the piezoelectric smart material has been studied and an actuator with piezoelectric stack has been proposed in the mode of parallel connection in electrics and series - wound in mechanics according to the property of the piezoelectric porcelain . second , a 2 - x actuator has been designed with the piezoelectric stack active part according to the triangle theory 本文首先对压电智能材料进行研究,根据压电陶瓷的特点,采用电学并联、力学串联的设计模式,提出一种压电堆主动驱动部件,在此基础上,根据三角形放大原理,设计了推挽式双x放大机构,并将压电堆主动件应用于推挽式双x机构,形成了推挽式双x驱动器。