Theoretical formulas were established by overall analysis to the progressive rate springs with variablearm length, and their results were obtained by experiment test.
通过对变撑臂渐硬性钢板弹簧的全面研究，推导出理论计算公式；通过试验测试，得到了试验结果。
2
Control of a flexible robot arm with variable sections is studied.
研究了柔性变截面滑移式机械手臂的控制。
3
When the arm runs to the upper and lower two limit position, respectively press the lower limit switch, cut off the main control circuit, variable amplitude motor parking, to limit the role.