发行时间：2015.10.06
总页数：8
编辑：
综保科技
摘要：
chapter 9
motors in space
all momentum devices require a spin motor of some type to actuate the rotor spin axis. cmgs also require a motor on the gimbal axis. the torque and speed requirements for the gimbal motor design are typically much different from those for the rotor. these issues, among others, motivate the following discussion of motors commonly employed in spaceborne momentum devices. the objective of this chapter is to familiarize the reader with some of the key considerations with th...
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