The calculation material contains the necessary formulas and data for designing SCHWINGMETALL mounts. All requisite design and calculation data are summarized below. The calculation examples refer to spring mounts executed with SCHWINGMETALL products.
Formulas, units and terms
| Symbols | Unit | Term |
| a | m/s2 | Acceleration |
| a0 | m/s2 | Input acceleration |
| aR | m/s2 | Net/residual acceleration |
 |
Acceleration standardized with gravitational acceleration a/g | |
| c | m/s | Speed of noise |
| c | N/mm | Spring rate |
| cV | Nm/Grad, Nm/rad |
Spring rate |
| d | dB | Isolation |
| D | Degree of damping, Lehr's damping ratio | |
| Drel | Relative Damping | |
| E | N/mm2 | Elasticity modulus |
| f | Hz | Frequency |
| fe | Hz | Natural frequency |
| ferr | Hz | Excitation frequency |
| F | N, kN | Force, impact force |
| Ferr | N | Excitation force |
| Fü | N | Transmitted force |
| g | 9,81 m/s2 | Acceleration due to gravity |
| H | Shore A | Elastomer hardness |
| K | Creep | |
| m | kg | mass |
| M | Nm | moment |
| n | Number (of bearings, time decades) | |
| p | Impedance leap | |
| R | Reflected structure-borne sound intensity | |
| s | mm, cm | Spring deflection |
| s0 | mm, m | Amplitude |
| s0 Stoß | mm, m | impact amplitude |
| s6 | mm | Initial deflection after 6 seconds |
| δs | mm | Increase in spring deflection |
| t | s | Time, load duration |
| t0 | s | Impulse time |
| T | Transmission ratio | |
| v | m/s | Speed/velocity |
| v | Stiffening factor | |
| V | Dynamic magnifier | |
| W | Nm | Energy, work absorption |
| Z | Pax s/m | Impedance leap |
| α | ° (Grad) | Angle of torsion |
| δ | ° (Grad) | Phase angle |
| η | Degree of isolation | |
| ν | °C | Temperature |
| Λ | logarithmic decrement | |
| V | min-1 | Vibration frequency |
| V e | min-1 | natural vibration frequency |
| V err | min-1 | Excitation vibration frequency |
| ρ | g/cm | Density |
| σ | N/mm2 | Compressive strain |
| ψ | comparative damping | |
| ω | s-1 | Radian frequency |