REXS Specification

The masses of a coupling or rotor can be considered for the natural frequency calculation using the abstract "additional mass" component. Gravitational force also influences the static gearbox calculation. An additional mass can be connected to a shaft or an (FE) casing. The assignment is made via a reference relation.

The additional mass has its own local coordinate system. The coordinate origin (indicated by the "support_vector") specifies the position where the force is applied to the shaft/casing. The moments of inertia of the additional mass component are relative to the axes of the local coordinate system. An (optional) excentricity of the center of the mass can be specified as a position (vector) in the local coordinate system. Refer to the description of the corresponding attributes in the REXS database for details.

<component id="11" type="shaft"> ... </component>

<component id="22" type="gear_casing"> ... </component>

<component id="14" type="additional_mass"> ... </component>

<relation id="32" type="assembly">
	<ref id="11" role="assembly" hint="shaft"/>
	<ref id="14" role="part" hint="additional_mass"/>
</relation>

<relation id="32" type="assembly">
	<ref id="22" role="assembly" hint="gear_casing"/>
	<ref id="16" role="part" hint="additional_mass"/>
</relation>