基于平行四边形环链的旋转开合板式结构
俞锋(
),许贤,罗尧治*()
),许贤,罗尧治*()
Rotary retractable plate structures with parallelogram closed-loop chains
Feng YU(),Xian XU,Yao-zhi LUO*()
),Xian XU,Yao-zhi LUO*()
图 2. 平行四边形环链和对应的板单元
Fig.2. Parallelogram closed-loop chains and corresponding plate elements
