Hydraulic power antiresonance isolation device

An anti-resonance, hydraulic technology, applied in the direction of shock absorber, shock absorber-spring combination, spring, etc., can solve the problems of large stiffness value, strong nonlinearity of the main spring, difficult to determine, etc., and achieve small stiffness and deformation range Large, small effect

Inactive Publication Date: 2017-04-26
SHANGHAI JIAO TONG UNIV
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  • Abstract
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Problems solved by technology

[0005] Aiming at the deficiencies in the above-mentioned background technology, the present invention proposes a hydraulic dynamic anti-resonance vibration isolation device, which solves the strong nonlinearity of the m

Method used

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  • Hydraulic power antiresonance isolation device
  • Hydraulic power antiresonance isolation device
  • Hydraulic power antiresonance isolation device

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0029] Please refer to Figure 1-4 , a hydraulic power anti-resonance vibration isolation device, including a hydraulic cylinder, a welded bellows 4, a main mass 12, a base 1, a coil spring 18 and a suspension mass 5, a welded bellows 4, a main mass 12, a base 1, and a suspension mass 5 is arranged coaxially with the hydraulic cylinder; one end of the welded bellows 4 is sealed with a suspension mass 5, and the other end of the welded bellows 4 is connected with the hydraulic cylinder; the main mass 12 is connected with the hydraulic cylinder to drive the hydraulic oil in the hydraulic cylinder Linear reciprocating motion; the base 1 is used to support the hydraulic cylinder; the main mass 12 and the base 1 are connected with a coil spring 18, and t...

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PUM

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Abstract

The invention discloses a hydraulic power antiresonance isolation device. The hydraulic power antiresonance isolation device comprises a hydraulic cylinder, a welding corrugated pipe, a main mass, a base, spiral springs and a suspension mass; the welding corrugated pipe, the main mass, the base, the suspension mass and the hydraulic cylinder are coaxially arranged; the suspension mass is sealed at one end of the welding corrugated pipe; the other end of the welding corrugated pipe is communicated with the hydraulic cylinder; the main mass is connected with the hydraulic cylinder for driving hydraulic oil in the hydraulic cylinder to perform a linear reciprocating motion; the base is used for supporting the hydraulic cylinder; the spiral springs are connected between the main mass and the base; multiple spiral springs are provided, and are uniformly arranged in the peripheral direction of the main mass; and the hydraulic cylinder is a single-piston rod single-acting hydraulic cylinder. Compared with the prior art, the hydraulic power antiresonance isolation device is easy to realize high lever ratio, simple in structure, easy to determine a main spring rigidity value, excellent in spring rigidity linearity, adjustable in parameters and convenient to disassemble.

Description

technical field [0001] The invention relates to the field of vibration isolation of engineering structures, in particular to a hydraulic dynamic anti-resonance vibration isolation device. Background technique [0002] The propeller is the main propulsion device of ships and ships. The spatial inhomogeneity and time inhomogeneity of the incoming flow at the stern of the ship are the two excitation sources for the longitudinal pulsation force at the blade. The spatial inhomogeneity mainly leads to the speed-related blade frequency and its multiple frequency characteristics, which have obvious narrow-band line spectrum characteristics, while the temporal inhomogeneity mainly leads to broadband excitation and induces the natural vibration of the propeller-shaft system, including the propeller natural mode and The first-order longitudinal mode of the shafting. These two kinds of pulsating forces, especially the longitudinal low-frequency components, cause the hull longitudinal ...

Claims

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Application Information

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IPC IPC(8): F16F13/00
CPCF16F13/007
Inventor 刘扭扭董兴建华宏星
Owner SHANGHAI JIAO TONG UNIV
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