Power Flow in a Two-Stage Nonlinear Vibration Isolation System with High-Static-Low-Dynamic Stiffness
The manuscript concerns the power flow characterization in a two-stage nonlinear vibration isolator comprising three springs, which are configured so that each stage of the system has a high-static-low-dynamic stiffness. To demonstrate the distinction of evaluation for vibration isolation using powe...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/1697639 |
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| _version_ | 1832567154904399872 |
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| author | Ze-Qi Lu Dong Shao Hu Ding Li-Qun Chen |
| author_facet | Ze-Qi Lu Dong Shao Hu Ding Li-Qun Chen |
| author_sort | Ze-Qi Lu |
| collection | DOAJ |
| description | The manuscript concerns the power flow characterization in a two-stage nonlinear vibration isolator comprising three springs, which are configured so that each stage of the system has a high-static-low-dynamic stiffness. To demonstrate the distinction of evaluation for vibration isolation using power flow, force transmissibility is used for comparison. The dynamic behavior of the isolator subject to harmonic excitation, however, is of interest here. The harmonic balance method (HBM) could be used to analyze the frequency response curve (FRC) of the strong nonlinear vibration system. A suggested stability analysis to distinguish the stable and the unstable HBM solutions is described. Increasing both upper and lower nonlinear stiffness could bend the first resonant peak to the left. The isolation range in the power and the force transmissibility plot could be extended to the lower frequencies when the nonlinear stiffness is increased, but the rate of roll-off for the power transmissibility is twice the rate for the force transmissibility at each horizontal stiffness setting. An explanation for this phenomenon is given in the paper. |
| format | Article |
| id | doaj-art-2077e87a498844ee895b8c00a9e51881 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-2077e87a498844ee895b8c00a9e518812025-02-03T01:02:14ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/16976391697639Power Flow in a Two-Stage Nonlinear Vibration Isolation System with High-Static-Low-Dynamic StiffnessZe-Qi Lu0Dong Shao1Hu Ding2Li-Qun Chen3Shanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai, ChinaShanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai, ChinaShanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai, ChinaShanghai Institute of Applied Mathematics and Mechanics, Shanghai University, Shanghai, ChinaThe manuscript concerns the power flow characterization in a two-stage nonlinear vibration isolator comprising three springs, which are configured so that each stage of the system has a high-static-low-dynamic stiffness. To demonstrate the distinction of evaluation for vibration isolation using power flow, force transmissibility is used for comparison. The dynamic behavior of the isolator subject to harmonic excitation, however, is of interest here. The harmonic balance method (HBM) could be used to analyze the frequency response curve (FRC) of the strong nonlinear vibration system. A suggested stability analysis to distinguish the stable and the unstable HBM solutions is described. Increasing both upper and lower nonlinear stiffness could bend the first resonant peak to the left. The isolation range in the power and the force transmissibility plot could be extended to the lower frequencies when the nonlinear stiffness is increased, but the rate of roll-off for the power transmissibility is twice the rate for the force transmissibility at each horizontal stiffness setting. An explanation for this phenomenon is given in the paper.http://dx.doi.org/10.1155/2018/1697639 |
| spellingShingle | Ze-Qi Lu Dong Shao Hu Ding Li-Qun Chen Power Flow in a Two-Stage Nonlinear Vibration Isolation System with High-Static-Low-Dynamic Stiffness Shock and Vibration |
| title | Power Flow in a Two-Stage Nonlinear Vibration Isolation System with High-Static-Low-Dynamic Stiffness |
| title_full | Power Flow in a Two-Stage Nonlinear Vibration Isolation System with High-Static-Low-Dynamic Stiffness |
| title_fullStr | Power Flow in a Two-Stage Nonlinear Vibration Isolation System with High-Static-Low-Dynamic Stiffness |
| title_full_unstemmed | Power Flow in a Two-Stage Nonlinear Vibration Isolation System with High-Static-Low-Dynamic Stiffness |
| title_short | Power Flow in a Two-Stage Nonlinear Vibration Isolation System with High-Static-Low-Dynamic Stiffness |
| title_sort | power flow in a two stage nonlinear vibration isolation system with high static low dynamic stiffness |
| url | http://dx.doi.org/10.1155/2018/1697639 |
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