A simulation research of the mechatronic inerter based on active control

It is known in the theory of electromechanical analogy, the “mass-spring-damper” in mechanical networks is corresponded to “capacitor-inductor-resistor” in electrical networks. There is a device called inerter is corresponded to the capacitor completely because it conquers the nature restriction of mass, what´s more, it is significant to improve the ratio of the inerter´s inertance to its mass for mechanical networks synthesis. This paper designed a mechatronic inerter based on a frame which consists of a ball screw, a DC motor and a control circuit series in the armature, adjusting magnitude and direction of current in armature by PID controller makes the property of inerter came true, at the same time, the inertance get raised. Finally, the feasibility of the mechatronic inerter´s design will get verified by simulation and analysis.