A vibration isolation device and a rail vehicle using the device

Abstract

The invention relates to a vibration isolation device and a rail vehicle using the device, including one or more vibration damping components arranged between the vehicle equipment and the vehicle body; the vibration damping components include a support bearing part for supporting the The vehicle-mounted equipment and the vehicle body carry vibration-damping components; the energy dissipation part is used to dissipate energy through response resonance to bending waves and vertical elastic waves and internal friction and heat generation. The present invention realizes the stability of the vibration isolation device by supporting the bearing part, adopts the energy dissipating part to dissipate the elastic wave response resonance formed in the low frequency range and internal friction heat generation, and realizes the vibration isolation effect.

Description

technical field [0001] The invention relates to a vibration isolation and noise reduction device for low frequency bands, in particular to a vibration isolation device and a rail vehicle using the device. Background technique [0002] Rail transit has the advantages of punctuality, large passenger capacity, green energy saving, and convenience. It has increasingly become the first choice for people to commute and travel in the middle and long distances. However, the low-frequency vibration and noise generated by rail transit vehicles during driving greatly affect the comfort of passengers. Low-frequency mechanical waves and noise have strong penetrating power during transmission and are difficult to attenuate, causing harm to the body. These low-frequency noise and vibration mainly come from Vehicle equipment excites vibration, and the equipment installation space is extremely limited, within 50mm. [0003] Traditional vibration isolators are divided into active vibration i...

AI Technical Summary

Problems solved by technology

However, the low-frequency vibration and noise generated by rail transit vehicles during driving greatly affect the comfort of passengers. Low-frequency mechanical waves and noise have strong penetrating power during transmission and are difficult to attenuate, causing harm to the body. These low-frequency noise and vibration mainly come from Vehicle equipment excites vibration, and the equipment installation space is extremely limited, within 50mm

[0003] Traditional vibration isolators are divided into active vibration isolators and passive vibration isolators. Active vibration isolators have the disadvantages of high cost, large size, high working environment requirements, and active energy consumption; Poor and the vibration isolation frequency does not meet the design requirements, and the use of traditional vibration isolators to achieve low-frequency vibration isolation requires low natural frequency of the vibration isolator, which means that the structural stiffness of the vibration isolator is low, and it is necessary to balance the vibration isolation effect and system stability of the system sex

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