Electronical and Mechanical System Modeling of Robot Dynamics Using a Mass/Pulley Model

محورهای موضوعی : journal of Artificial Intelligence in Electrical Engineering

عطالله رجب پور ¹ ()
امیر زارعی ² ()
آرزو رجب پور ³ ()
فاطمه احمدی ⁴ ()

تاریخ دریافت : 1394/05/01 تاریخ پذیرش : 1394/05/01 تاریخ انتشار : 1392/08/10

کلید واژه: Mass matrix, inertia matrix, MP model, pulley, differential transmission, mechanical system representation, robot dynamics, impedance, equivalent electric circuit,

چکیده مقاله :

The well-known electro-mechanical analogy that equates current, voltage, resistance, inductance and capacitance to force, velocity, damping, spring constant and mass has a shortcoming in that mass can only be used to simulate a capacitor which has one terminal connected to ground. A new model that was previously proposed by the authors that combines a mass with a pulley (MP) is shown to simulate a capacitor in the general case. This new MP model is used to model the off-diagonal elements of a mass matrix so that devices whose effective mass is coupled between more than one actuator can be represented by a mechanical system diagram that is topographically parallel to its equivalent electric circuit model. Specific examples of this technique are presented to demonstrate how a mechanical model can be derived for both a serial and a parallel robot with both two and three degrees of freedom. The technique, however, is extensible to any number of degrees of freedom

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