[1]State Key Lab of Digital Manufacturing Equipment and Technology;
Huazhong University of Science and Technology;
Wuhan 430074;
China;
[1]State Key Lab of Digital Manufacturing Equipment and Technology;
Huazhong University of Science and Technology;
Wuhan 430074;
China;
[1]State Key Lab of Digital Manufacturing Equipment and Technology;
Huazhong University of Science and Technology;
Wuhan 430074;
China;
[1]State Key Lab of Digital Manufacturing Equipment and Technology;
Huazhong University of Science and Technology;
Wuhan 430074;
China;
[2]WoodruffSchool of Mechanical Engineering;
Georgia Institute of Technology;
Atlanta 30332;
USA;
compliant actuators; direct-drive motors; variable stiffness motors; variable magnetization motors;