Experimental investigation on the effectiveness of laminated rubber bearings to isolate metro generated vibration

Pan, Peng; Shen, Shifei; Shen, Zhenjiang; Gong, Ruzhi

doi:10.1016/j.measurement.2017.07.019

Cited by 49 publications

(15 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Enrique [17] took the experimental method to investigate the two-phase flow-induced vibration in pipes, they found that dynamic pipe response increases with increasing mixture velocity and void fraction, what is more, the hydrodynamic mass parameter is proportional to mixture density. Zhou [18] and Pan [19] focused experimental research on a vibration isolation platform for momentum wheel assembly and laminated rubber bearings to isolate metro generated vibration respectively. Kaiming Bi [20] proposed properly selected viscoelastic materials and constraining layers vibrations of above-ground pipelines can be effectively mitigated.…”

Section: Introductionmentioning

confidence: 99%

Experiment Investigate on the Effectiveness of Flexible Pipes to Isolate Sea-Water Pump Generated Vibration

et al. 2020

View full text Add to dashboard Cite

Vibration control is important in maintaining the silence of the underwater vehicle. Among the many methods of vibration control, isolation is by far the most efficient approach. However, as one of the major vibration sources in underwater vehicle, the vibration isolation of the sea-water pump has not been well explored. The sea-water pipe is the primary vibration transmit path from the sea-water pump to the housing. In order to realize the vibration isolation of the sea-water pump, the sea-water pipe must have certain flexibility and damping. In this study, scaled model tests were carried out to investigate the isolation effectiveness of flexible pipes in isolated sea-water pump. Specifically, three types of flexible pipes, i.e., double layer metal bellows (DLMB), rubber pipes (RP) and bellows coated rubber (BCR) were designed and tested. Tests were carried out under the operation rotate speeds of the sea-water pump. Our results show that compared with single layer metal bellows (SLMB), the isolation effectiveness of DLMB and BCR were significant and stable in high frequency regions. The optimal pipe can be chosen for different vibration reduction requirements in practical engineering.

show abstract

Section: Introductionmentioning

confidence: 99%

Experiment Investigate on the Effectiveness of Flexible Pipes to Isolate Sea-Water Pump Generated Vibration

et al. 2020

View full text Add to dashboard Cite

show abstract

“…For the first problem, elastomeric bearings and steel helical springs are two popularly used vertical vibration isolators. [ 6–8 ] However, their suppression effectiveness for subway‐induced horizontal vibrations has rarely been studied. Using in situ measurements, Talbot and Hunt, [ 9 ] Sanayei et al, [ 10 ] and Sheng et al [ 11 ] explored the negative influences caused by subway‐induced horizontal vibrations.…”

Section: Introductionmentioning

confidence: 99%

Base isolation of buildings for subway‐induced environmental vibration: Field experiments and a semi‐analytical prediction model

Sheng

Shi

Shan

et al. 2020

Structural Design Tall Build

View full text Add to dashboard Cite

This paper presents a new three-directional isolator and a new prediction model for base isolation method of buildings to improve the comfort of occupants under subway-induced environmental vibration. The mechanical properties of the isolator were tested in a laboratory. The results indicated that the stiffness values can satisfy the isolation requirements for environmental vibrations by increasing the thickness of rubber layers, and the sliding bottom is beneficial for protecting the new isolator from instability failures under earthquakes. The suppression effectiveness of the new isolator for three-directional subway-induced environmental vibrations was then investigated via field experiments with a full-scale building. Further, the tri-axial comfort of occupants inside the building is enhanced significantly. Finally, using the measured data from the field experiments as an input, the new prediction model was proven to be effective for evaluating the vertical vibration levels of the base-isolated building. As the new prediction model only includes a few of the most influential floor slabs, the modeling workload and computational cost of the prediction analysis are eased. Therefore, the new isolator and the prediction model are beneficial for improving the service performances of the base isolation method, especially for the buildings near subway transportation and in seismic areas.

show abstract

“…The stiffness and damping of the rubber damper both decreased with increases of the excitation amplitude. Pan et al [17] studied the vibration isolation effect of laminated rubber bearings for subway vibration and found that the greater the thickness of the rubber bearings, the more significant the vibration isolation effect. Tang et al [18] established a nonlinear dynamic model of a rubber isolator.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Model and Response Analysis of Bionic Hydraulic Pipeline Based on Vascular Physiological Structure

et al. 2019

View full text Add to dashboard Cite

A bionic hydraulic pipeline (BHP) with a three-layer structure is designed innovatively on the basis of an animal's biological mechanism. Its intermediate layer is rubber material and the middle layer is the same as the middle layer of the blood vessels at the outlet of a cheetah's heart and has good viscoelasticity. This is used to absorb the flow pressure pulsation of the hydraulic system. Besides, a dynamic model of a BHP and the effect of absorption pulsation are further studied. It includes a rubber material model and the FSI (fluid-structure interaction) dynamic equation of the relationship between the liquid and rubber material. For rubber materials, the Mooney-Rivlin model is selected to describe the dynamic characteristics. After testing the stress and strain data through experiments, C 10 and C 01 of the rubber material are obtained. After determining the constitutive model of rubber and its parameters, the FSI model of the BHP is established. The natural frequency of the BHP is obtained when we solve the model with Matlab. Furthermore, to evaluate the accuracy of the model, hammer mode experiments are performed. They show that the accuracy of the model's evaluation is within 5%. On this basis, the length and thickness of the rubber layer and the pressure of the flow in the pipeline are changed. The vibration of the pipeline is analyzed and utilized by ANSYS. On the experimental rig, a BHP with different lengths and thicknesses of silicon film was manufactured and installed at the high-pressure outlet of the axial piston pump, and then the vibration of the outer wall of the pipeline was tested. The results show that the BHP has an obvious absorption effect on the flow pulsation of the axial piston pump outlet.

show abstract

Experimental investigation on the effectiveness of laminated rubber bearings to isolate metro generated vibration

Cited by 49 publications

References 14 publications

Experiment Investigate on the Effectiveness of Flexible Pipes to Isolate Sea-Water Pump Generated Vibration

Experiment Investigate on the Effectiveness of Flexible Pipes to Isolate Sea-Water Pump Generated Vibration

Base isolation of buildings for subway‐induced environmental vibration: Field experiments and a semi‐analytical prediction model

Dynamic Model and Response Analysis of Bionic Hydraulic Pipeline Based on Vascular Physiological Structure

Contact Info

Product

Resources

About