Papers by Author: Liang Wen Wang

Abstract: In this paper, controlling the motion of mass center of robot by different motion laws is discussed to reduce motor’s drive power of robot joint. Firstly, correlation theory is described; obtain that if the (AV) value of motion parameter of robot’ mass center is smaller; the torque of drive motor which needs to drive robot is smaller under the same conditions. Then, in the process of robot ZQROT-I running the straight gait, two typical motion laws are used to control mass motion of robot; motion performance of the robot is analyzed with Adams. Analysis result indicates that control mass motion of robot by the use of motion laws with small (AV) value has certain effect in saving working energy of robot.

Abstract: In the moving process of four-legged walking robot, the robot uses the random 3 foots to support its body, and the rest 1 foot to swing. This process is carried on alternately to complete the robot moved forward. If the robot's foothold position, the independent drive joint variables and the length of leg linkage are inaccurate, the robot's swing leg would deviate from the desired position, which led to the robot will deviate from the target track. The robot's swing leg trajectory is analyzed in this paper. On this basis, the swing leg trajectory accuracy is discussed under the condition that the errors of the robot's foothold position, drive joint variables and leg's linkage length are given. The analysis process is illustrated by an example. The error analysis has significant meaning for four-legged walking robot control .

Abstract: Development of integrated hand-foot function will speed up the practical application of multi-legged robots. If the positions of each foothold, the driven joint variables and length of linkage bar in leg are inaccurate, the arms (swing leg) of the robot are likely to deviate from required positions. In this paper, through the calculation process of the multi-legged walking robot's arm path, we discussed the calculating problem of the arm's position accuracy under the condition that the errors of foothold positions, driven joint variables and leg's linkage bar length are given. Detailed calculation formulas are given, and the analysis process is illustrated by an example.