Key;
Laboratory;
of;
Modem;
Complex;
Equipment;
Design;
and;
Extreme;
Manufacturing,;
Ministry;
of;
Education,;
Central;
South;
University,;
Changsha;
410083,;
China;
School;
of;
Mechanical;
and;
Electrical;
Engineering,;
Central;
South;
University,;
Changsha;
410083,;
China;