Damper White Noise

Material 0 - ViscousDamper

ops.uniaxialMaterial('ViscousDamper',matTag(),Kd,Cd,ad)

Passed reset() test

Passed restore() test

Material 1 - BilinearOilDamper

ops.uniaxialMaterial('BilinearOilDamper',matTag(),Kd,Cd)

Passed reset() test

Passed restore() test

Material 2 - ViscousMaterial

ops.uniaxialMaterial('Viscous',matTag(),Cd,0.8)

Passed reset() test

Passed restore() test

Material 3 - DamperMaterial

ops.uniaxialMaterial('Elastic',-2,Cd),                           ops.uniaxialMaterial('Damper',matTag(),-2)

Passed reset() test

Passed restore() test

Material 4 - ElasticMaterial

ops.uniaxialMaterial('Elastic',matTag(),0,Cd)

Passed reset() test

Passed restore() test

Material 5 - Maxwell

ops.uniaxialMaterial('Maxwell',matTag(),Kd,Cd,0.8,10)

Passed reset() test

Passed restore() test

Material 6 - UniformDamping

ops.damping('Uniform',matTag(),0.05,0.01,10.0)

Failed reset() at 5000 timesteps – max diff = 1565.4869853424211

Failed restore() at 5000 timesteps – max diff = 1564.4636532804793

I work on problems related to modeling and nonlinear structural analysis. If these problems are relevant to a current professional project, feel free to reach out.