# Compromised Vibration Isolator of Electric Power Generator Considering Self-Excitation and Basement Input

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## Abstract

**:**

## 1. Introduction

## 2. Theoretical Linear Model of Supported Electric Power Generator

## 3. Evaluation Indices for Vibration Isolator

## 4. Dynamic Simulation of Supported Power Plant Model

## 5. Compromise Strategy of Vibration Isolator

## 6. Conclusions

## Author Contributions

## Funding

## Data Availability Statement

## Acknowledgments

## Conflicts of Interest

## References

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**Figure 1.**Image of the electric power generator [20].

**Figure 2.**Image of vibration isolator [20].

**Table 1.**Specification of theoretical power plant model [20].

Variable | Value |
---|---|

${M}_{p}$(kg) | 6070 |

${M}_{M}$ (kg) | 6900 |

${M}_{B}$ (kg) | ${10\times M}_{p}$ |

${K}_{p}$ (kN/m) | 940 (1 Hz), 1050 (30 Hz), 1245 (60 Hz), 1881 (90 Hz), 4399 (120 Hz) |

${K}_{M}$ (kN/m) | $\left(5\times {10}^{6}\right)\times {K}_{p}$ |

${K}_{B}$ (kN/m) | ${{10}^{-1}\times K}_{p}$ |

${C}_{p}$ (Nsec/m) | 603 (1 Hz), 376 (30 Hz), 216 (60 Hz), 184 (90 Hz), 158 (120 Hz) |

${C}_{M}$ (Nsec/m) | $\left(1.5\times {10}^{6}\right)\ast {C}_{p}$ |

Case | Value |
---|---|

I | ${C}_{M}\xf710$, ${K}_{M}\xf710$ |

II | ${C}_{M}\xf710$, ${K}_{M}\times 10$ |

III | ${C}_{M}\times 10$, ${K}_{M}\xf710$ |

IV | ${C}_{M}\times 10$, ${K}_{M}\times 10$ |

Case | $\mathbf{Ratio}\mathbf{of}\mathbf{the}\mathbf{First}\mathbf{Performance}\mathbf{Index}\left({\mathit{I}}_{1}\right)$ | ||||
---|---|---|---|---|---|

1 (Hz) | 30 (Hz) | 60 (Hz) | 90 (Hz) | 120 (Hz) | |

I | - | 3.2 | 1.6 | 1.4 | 1.6 |

II | - | 3.2 | 1.7 | 1.5 | 1.6 |

III | - | 3.2 | 1.6 | 1.4 | 1.6 |

IV | - | 3.2 | 1.6 | 1.4 | 1.6 |

Case | $\mathbf{Ratio}\mathbf{of}\mathbf{the}\mathbf{Sec}\mathbf{ond}\mathbf{Performance}\mathbf{Index}\left({\mathit{I}}_{2}\right)$ | ||||
---|---|---|---|---|---|

1 (Hz) | 30 (Hz) | 60 (Hz) | 90 (Hz) | 120 (Hz) | |

I | 1.3 | 1.0 | 1.2 | 1.5 | 2.0 |

II | 1.3 | 0.9 | 0.9 | 0.8 | 0.8 |

III | 1.3 | 1.0 | 1.0 | 1.0 | 1.0 |

IV | 1.3 | 1.0 | 1.0 | 1.0 | 1.0 |

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**MDPI and ACS Style**

Park, Y.W.; Kim, T.-W.; Kim, C.-J.
Compromised Vibration Isolator of Electric Power Generator Considering Self-Excitation and Basement Input. *Inventions* **2023**, *8*, 40.
https://doi.org/10.3390/inventions8010040

**AMA Style**

Park YW, Kim T-W, Kim C-J.
Compromised Vibration Isolator of Electric Power Generator Considering Self-Excitation and Basement Input. *Inventions*. 2023; 8(1):40.
https://doi.org/10.3390/inventions8010040

**Chicago/Turabian Style**

Park, Young Whan, Tae-Wan Kim, and Chan-Jung Kim.
2023. "Compromised Vibration Isolator of Electric Power Generator Considering Self-Excitation and Basement Input" *Inventions* 8, no. 1: 40.
https://doi.org/10.3390/inventions8010040