Mechanical properties evaluation based on least squares for actuators system

The advantages and disadvantages of mechanical properties evaluation methods were analyzed. The main evaluation factors of mechanical properties of pneumatic and electric actuators system were given, and three ways of acquiring actuator system evaluation factor data were listed. A method of mechanical properties combination weight evaluation for actuator systems based on least squares was proposed. Firstly, two kinds of attribute weights of actuators system mechanical properties were obtained with information entropy theory and analytic hierarchy process (AHP) theory. Then the combination weights of actuators system were obtained with least squares method, and the comprehensive evaluation values of actuators system were calculated for selecting the most excellent solution. Finally the new evaluation method authentication was carried out with the specific examples. Results show that, as a case of pneumatic and electric actuators system under the specific conditions, the mechanical properties of pneumatic actuator system are better than that of electric actuator system with the combination weight mechanical properties evaluation method, and the result fits the on-site conditions. The standard deviation of the new method for actuators system is smaller than that of information entropy and AHP-fuzzy comprehensive evaluation (AHP-FCE).