Products: ABAQUS/Standard ABAQUS/CAE
Benefits: Natural frequency extraction and steady-state dynamic analysis now include Coriolis effects induced by steady-state rolling, and the effect of fluid flow on acoustic waves, improving the accuracy and fidelity of these analyses. You can use the new “lift equation” to specify the orientation of reinforcing fibers in the uncured state of the tire. The convergence characteristics of steady-state transport analyses with inertia loading have been improved for high rolling speeds.
Description: In a rolling structural-acoustic system, such as a tire, the motion affects the vibration dynamics of the system through changes in effective inertia, damping, and stiffness of both the solid and acoustic media. In ABAQUS these effects are analyzed through the use of the steady-state transport feature, and subsequent natural frequency extraction or steady-state dynamic analyses. For the solid media the transport-induced changes in the inertia due to Coriolis effects have been included in this release. For the acoustic media the transport-induced changes are also included, using an interface that is independent of the steady-state transport feature so that fluid-only acoustic problems can be analyzed.
The new “lift equation” can be used to specify the orientation of the reinforcing fibers. Both the keyword and ABAQUS/CAE interfaces have been enhanced.
Property module: SectionCreate: Shell, Homogeneous or Composite: Rebar Layers: select Lift equation-based Section