Parallel Robot and Mechatronic System Laboratory of Hebei Province;
Yanshan University;
Qinhuangdao 066004;
China;
Key Laboratory of Advanced Forging&Stamping Technology and Science of Ministry of National Education;
Yanshan University;
Qinhuangdao 066004;
China;
Constraint-synthesis method; Deployable mechanism; Ring truss antenna; Screw theory; Type synthesis;