PSI - Issue 58

Victor Rizov et al. / Procedia Structural Integrity 58 (2024) 150–156 V. Rizov / Structural Integrity Procedia 00 (2019) 000–000

154

5

U 3 4     V B B B B ) ( 3 4

u dV B B 3 4

.

(20)

We solve the integrals involved in (18), (19) and (20) by MatLab. Then formula (17) is used to calculate U  . 3. Numerical results

0.600

1  s

m,

Numerical results are obtained and presented in this section of the paper. We assume that

0.400

0.6 1   ,

0.6 2   ,

0.7 4   ,

2  s

3  a F N,

0.6

3  

m,

0.300  l m,

0.010  h m,

,

0.7

0.7

5  

6  

and

.

Q G E E / ratio (curve 1 – at

/ 1 1  Q G D D

0.5

/ 1 1  Q G D D

1.0

Fig. 2. The damping energy versus

, curve 2 – at

and curve 3 –

/ 1 1  Q G D D

2.0

at

).

The results obtained clarify the influence of various factors on the damping phenomenon in the non-linear viscoelastic frame structure at different temperatures.

2 / l s ratio (curve 1 – at

/ 2 2  Q G D D

0.5

/ 2 2  Q G D D

1.0

Fig. 3. The damping energy versus

, curve 2 – at

and curve 3 – at

/ 2 2  Q G D D

2.0

).