Table 3 Calculated and test results of stiffness of the ASs under no load.
From: Stiffness analysis and structural optimization design of an air spring for ships
Description | 8Â T | 15Â T | 30Â T | Description | 8Â T | 15Â T | 30Â T | |
|---|---|---|---|---|---|---|---|---|
Calculated result | \(K_{Z}^{p}\) (kN/mm) | 0 | 0 | 0 | \(K_{H}^{p}\) (kN/mm) | 0 | 0 | 0 |
\(K_{Z}^{b}\) (kN/mm) | 0.79 | 0.98 | 1.23 | \(K_{H}^{b}\) (kN/mm) | 7.05 | 8.27 | 9.49 | |
KZ (kN/mm) | 0.79 | 0.98 | 1.23 | KH (kN/mm) | 7.05 | 8.27 | 9.49 | |
Test result | KZ (kN/mm) | 0.81 | 1.07 | 1.28 | KH (kN/mm) | 7.36 | 9.12 | 9.88 |
Calculation error | KZ | 2.5% | 8.4% | 3.9% | KH | 4.2% | 9.3% | 3.9% |
