2. Benchmark solution

2.1. Calculation method

The co-localized harmonic response at point A is calculated by a direct method, frequency by frequency. So, frequency by frequency:

• we define a viscoelastic material whose properties are interpolated from the data of;

• the assembled mass and hysteretic stiffness matrices are calculated;

• we solve the dynamic equation on a physical basis (operator DYNA_LINE_HARM [U4.53.11]).

2.2. Reference quantities and results

The tests are carried out on the frequency response co-localized to point A at 1 Hz, 100 Hz, and 500 Hz.

2.3. Uncertainty about the solution

Digital solution.