Gyristor

Fig. 1.10 Virtual inertia s and gyristors resulting from a transformation of the 1-elements to the body-fixed frame in the example of Fig. 1.7...

Note that if the constraint would be elastic, the gyristors (GR) would stay in the model and represent the fictitious forces like the centrifugal force (in case of a rigid constraint, the corresponding velocity and thus the corresponding power is zero, such that the contribution becomes irrelevant for the behavior). 

If it is wished to establish the inertia in the non-inertial reference system, the translational inertia must be transformed through the MTF representing the change of coordinates from to Vq. This transformation results in an inertia that is equal to the translational inertia and an asymmetric gyristor with a matrix of coeflBcients of expression (9.14), as can be seen in Fig. 9.9 ... 

As with the mass matrix, the gyristor can be modeled as a ring of onedimensional MGYs because its constitutive matrix is antisymmetric. In this case, the MGY is modulated by the angular moment Zjj as Fig. 9.11 and [5, 6] show. 

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