Add quadratic inertial terms in IGA (gyroscopic and centrifugal effect). The gyro effect could be neglected in many cases where the beam has slow rotations, but the centrifugal term was really needed for the case of beams with center of mass being offset from centerline, as when using ChInertiaCosseratInertiaAdvanced. Note that for the moment those quadratic terms are added to the internal forces, hence they contribute to the K and R stiffness and damping tangent matrices, in detail the gyroscopical effect might change the K matrix adding some unsymmetry - this is the reason why in rotordynamics the K and R change as speed ramps up evein in linearized models, where the eigenvalues split in forward whirl/backward whirl modes in the Campbell diagrams that consider gyroscopical effects.
Add quadratic inertial terms in IGA (gyroscopic and centrifugal effect). The gyro effect could be neglected in many cases where the beam has slow rotations, but the centrifugal term was really needed for the case of beams with center of mass being offset from centerline, as when using ChInertiaCosseratInertiaAdvanced.
Note that for the moment those quadratic terms are added to the internal forces, hence they contribute to the K and R stiffness and damping tangent matrices, in detail the gyroscopical effect might change the K matrix adding some unsymmetry - this is the reason why in rotordynamics the K and R change as speed ramps up evein in linearized models, where the eigenvalues split in forward whirl/backward whirl modes in the Campbell diagrams that consider gyroscopical effects.

Milad-Rakhsha/chrono,projectchrono/chrono,Milad-Rakhsha/chrono,projectchrono/chrono,rserban/chrono,projectchrono/chrono,rserban/chrono,dariomangoni/chrono,dariomangoni/chrono,Milad-Rakhsha/chrono,Milad-Rakhsha/chrono,dariomangoni/chrono,dariomangoni/chrono,Milad-Rakhsha/chrono,rserban/chrono,projectchrono/chrono,projectchrono/chrono,rserban/chrono,projectchrono/chrono,dariomangoni/chrono,Milad-Rakhsha/chrono,dariomangoni/chrono,rserban/chrono,rserban/chrono,rserban/chrono