Study of the Lifetime Testing of Spherical Rubber Isolators
| Autor: | Zhang Xingyun, Zenghui Peng, Shaoxin Wang, Chengliang Yang, Quan-Quan Mu, Hao Li, Ping Su |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Technology
Materials science QH301-705.5 QC1-999 Quantitative Biology::Tissues and Organs 02 engineering and technology complex mixtures Acceleration 0203 mechanical engineering Natural rubber medicine General Materials Science Biology (General) QD1-999 Instrumentation rubber isolator Fluid Flow and Transfer Processes business.industry Physics Process Chemistry and Technology Isolator technology industry and agriculture General Engineering Stiffness Structural engineering Engineering (General). Civil engineering (General) Physics::Classical Physics 021001 nanoscience & nanotechnology accelerated lifetime test Computer Science Applications body regions Condensed Matter::Soft Condensed Matter Vibration Chemistry Nonlinear system 020303 mechanical engineering & transports visual_art Harmonic visual_art.visual_art_medium harmonic and random vibrations Random vibration TA1-2040 medicine.symptom 0210 nano-technology business psychological phenomena and processes |
| Zdroj: | Applied Sciences Volume 11 Issue 15 Applied Sciences, Vol 11, Iss 6667, p 6667 (2021) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11156667 |
| Popis: | This study aims to identify the fatigue lifetime of a thin-walled hollow spherical rubber isolator subjected to harmonic and random vibrations. Firstly, the nonlinear characteristics of the rubber materials are tested and analyzed through vibration experiments. The relationship among the nonlinear stiffness, nonlinear damping, and relative displacement amplitude is established. Secondly, an accelerated lifetime experiment under random excitation is carried out. The correlation between the root-mean-squared acceleration response of the random vibration system and the stiffness attenuation of the rubber isolator is established and modeled. A lifetime prediction method for rubber isolators is proposed based on the model. Finally, the influence of different loads on the lifetime of the rubber isolator is investigated. These methods provide an additional rationale for the further theoretical research and practical engineering application of rubber damping systems. |
| Databáze: | OpenAIRE |
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