Improved Design and Performance Test of Viscoelastic Assembled Shock Absorber
Journal: Architecture Engineering and Science DOI: 10.32629/aes.v5i4.3212
Abstract
In order to reduce the overall vulcanization cost of the viscoelastic shock absorber and prevent the premature cracking of its adhesive layer, the viscoelastic shock absorber was improved and designed. A new type of viscoelastic assembled shock absorber suitable for cold adhesive bonding was made by adding grooves to the steel plate and increasing the lateral pressure with bolts. Then, the mechanical properties of the new assembled shock absorber were tested under different working conditions to study its energy dissipation characteristics and failure mode. The storage modulus and loss factor of the viscoelastic damping material were calculated through the force- displacement hysteresis curve, and the influence of the device structure, lateral pressure, loading frequency and displacement amplitude on the mechanical properties of the shock absorber were obtained. The test results show that adding grooves to the steel plate and increasing the lateral pressure of the shock absorber can improve the ability of the shock absorber to dissipate vibration energy. Moreover, the greater the displacement amplitude and loading frequency, the more energy dissipated. Therefore, by adopting appropriate external conditions and reasonable internal structure, the energy dissipation performance of the damping material can be fully utilized and the shock absorption effect of the shock absorber can be greatly improved.
Keywords
viscoelastic material; viscoelastic assembled shock absorber; performance test; lateral pressure; bonding failure
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[4] Yuan Jianzheng，Li Jian. Applications of viscoelastic damper in structure design and earthquake resistant reinforcement[J]. Guangdong Architecture Civil Engineering, 2009, 16(6): 52-54.
[5] Zhou Yun, Wu Congxiao, Deng Xuesong. Develop- ment, research and application of lead viscoelastic damper[J]. Engineering Mechanics, 2009, 26(S2): 80-90.
[6] Martinez- Agirre M, Elejabarrieta M J. Characterization and modeling of viscoelastically damped sandwich structures[J]. International Journal of Mechanical Sciences, 2010, 52(9): 1225-1233.
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Copyright © 2025 Qing Liu, Xingyuan Qin, Qun Yao, Tingyan Li, Rulian Yu, Jie Zhang, Fenzong Li, Ghazi Moqbel Qaid Ahmed Alzouba
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