CN105909723A - Anti-collapse multi-layer metal corrugated pipe solid-liquid mixed vibration isolator - Google Patents

Anti-collapse multi-layer metal corrugated pipe solid-liquid mixed vibration isolator Download PDF

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Publication number
CN105909723A
CN105909723A CN201610408519.2A CN201610408519A CN105909723A CN 105909723 A CN105909723 A CN 105909723A CN 201610408519 A CN201610408519 A CN 201610408519A CN 105909723 A CN105909723 A CN 105909723A
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China
Prior art keywords
corrugated pipe
vibration isolator
compressible
pipe container
elastic rubber
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Pending
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CN201610408519.2A
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Chinese (zh)
Inventor
鲁正
李坤
张泽楠
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Tongji University
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Tongji University
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Priority to CN201610408519.2A priority Critical patent/CN105909723A/en
Publication of CN105909723A publication Critical patent/CN105909723A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/023Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2222/00Special physical effects, e.g. nature of damping effects
    • F16F2222/12Fluid damping

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Combined Devices Of Dampers And Springs (AREA)

Abstract

The invention relates to an anti-collapse multi-layer metal corrugated pipe solid-liquid mixed vibration isolator. The vibration isolator comprises a corrugated pipe container, hydraulic oil, compressible elastic rubber units and circular sticking patches, wherein the corrugated pipe container is loaded with a solid-liquid mixed medium composed of the hydraulic oil and the compressible elastic rubber units; the compressible elastic rubber units can be filled with air, pressurized gas or be vacuumized; and the circular sticking patches are welded to the top end and the bottom end of the corrugated pipe container to seal the corrugated pipe container. The vibration isolator has good vibration isolation performance and can effectively improve the anti-collapse capacity of structures. The vibration isolation effect can be adjusted by changing the number of the compressible elastic rubber units, and meanwhile the problem of oil leakage is avoided by adopting multiple layers of corrugated pipes. Alloy materials used for making the corrugated pipes has the multiple advantages of oil resistivity, corrosion resistance, heat resistance, lowest aging and the like.

Description

Anti-collapse solid-liquid mixed vibration isolator with multi-layer metal corrugated pipes
Technical Field
The invention relates to a collapse-resistant multi-layer metal corrugated pipe solid-liquid hybrid vibration isolator, and belongs to the technical field of hydraulic vibration isolation and collapse resistance.
Background
The vibration control technology is mainly classified into passive control, semi-active control and active control. In practical engineering, compared with other two schemes, passive control is widely researched and applied due to the advantages of simple and convenient operation, low cost and the like.
In recent years, the liquid-solid mixed medium vibration isolator also draws certain attention as a novel vibration control means, and particularly has obvious advantages in the aspect of low-frequency heavy-load vibration isolation. The traditional liquid-solid hybrid vibration isolator is composed of a hydraulic oil cylinder, hydraulic oil, an elastic unit, a piston and the like, has good vibration isolation performance, and has the problems of short fatigue life, unit aging, oil leakage and the like. To solve these problems, the present invention introduces an alloy bellows structure, the alloy material is obviously free from aging problems and has longer fatigue life. The problem of oil leakage is solved through the welded seal of the top and the bottom of the corrugated pipe container. Circular patches are welded on two sides of the corrugated pipe unit body, and air, pressurized gas or vacuum can be filled in the compressible elastic rubber unit body.
The invention has good vibration isolation performance, can effectively improve the collapse resistance of the structure, can adjust the vibration isolation effect by changing the number of the compressible elastic rubber unit bodies, avoids the problem of oil leakage by adopting a plurality of layers of corrugated pipes, and has various advantages of oil resistance, corrosion resistance, heat resistance, difficult aging and the like.
Disclosure of Invention
In order to solve the problems of short fatigue life, unit aging, oil leakage and the like of the conventional vibration isolator, the invention aims to provide the multilayer metal corrugated pipe type solid-liquid hybrid vibration isolator. The vibration isolator has the advantage of good vibration isolation performance of the traditional vibration isolator, solves the problems of short fatigue life, aging of rubber units, leakage of oil and the like of the traditional vibration isolator, and improves the collapse resistance of the structure.
The technical scheme adopted by the invention for solving the technical problems is as follows: the collapse-resistant multilayer metal corrugated pipe solid-liquid mixed vibration isolator comprises a corrugated pipe container, hydraulic oil, compressible elastic rubber units and circular patches, wherein a solid-liquid mixed medium consisting of the hydraulic oil and the compressible elastic rubber units is filled in the corrugated pipe container, the whole corrugated pipe container is filled with the solid-liquid mixed medium, any one of air, pressurized gas or vacuum is filled in the compressible elastic rubber units, and the circular patches are welded at the top end and the bottom end of the corrugated pipe container to completely seal the corrugated pipe container; the rigidity of the hybrid vibration isolator is divided into a linear section and a nonlinear section, the rigidity is provided by the corrugated pipe container and the compressible rubber unit body together at the beginning, after a critical point is reached, the rigidity of the hybrid vibration isolator is provided by the multilayer corrugated pipe container, the critical point is that the elastic restoring force of the compressible rubber unit body is balanced with the internal gas pressure of the compressible rubber unit body, so that the rigidity of the hybrid vibration isolator is determined by the corrugated pipe container and the compressible rubber unit body together, and the position of the critical point is related to the property of the compressible rubber unit body.
In the invention, the compressible elastic rubber unit body is filled with air, pressurized gas or vacuum, so that the compressible performance is realized, and hydraulic oil is almost incompressible.
In the invention, the number of the compressible elastic rubber unit bodies can be adjusted, thereby changing the rigidity of the vibration isolator, adjusting the vibration isolation effect of the vibration isolator and improving the performance of the vibration isolator.
The anti-collapse multi-layer metal corrugated pipe container has the advantages that the anti-collapse multi-layer metal corrugated pipe structure is introduced, the round patches are welded at the two ends of the top and the bottom of the multi-layer corrugated pipe container for sealing, the problem of oil leakage of the traditional hydraulic oil cylinder can be solved, and the anti-collapse multi-layer metal corrugated pipe container has the advantages of oil resistance, corrosion resistance, heat resistance, difficulty in aging and the like due to the use of alloy materials. The compressible elastic rubber unit body can be filled with air, pressurized gas or vacuum, so as to realize the compressible property, and the hydraulic oil is hardly compressible. The quantity of the compressible elastic rubber unit bodies can be adjusted, so that the rigidity of the vibration isolator is changed, the vibration isolation effect of the vibration isolator is adjusted, the performance of the vibration isolator is improved, and finally the collapse resistance of the structure is effectively improved.
Drawings
FIG. 1 is a schematic view of the present invention;
fig. 2 is a schematic top view.
Reference numbers in the figures: 1. bellows container, 2 hydraulic oil, 3 compressible elastic rubber unit, 4 circular patch.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Example 1:
the invention discloses an anti-collapse multilayer metal corrugated pipe solid-liquid hybrid vibration isolator which comprises a corrugated pipe container 1, hydraulic oil 2, a compressible elastic rubber unit 3 and a circular patch 4.
As shown in fig. 1 and 2, a solid-liquid mixed medium composed of hydraulic oil 2 and a compressible elastic rubber unit 3 is filled in a bellows container 1, wherein the compressible elastic rubber unit 3 can be filled with air, pressurized gas or vacuum, and circular patches are welded at two ends of the top and bottom of the bellows container for sealing. The rigidity of the vibration isolator can be adjusted by changing the number of the compressible elastic rubber unit bodies, so that the vibration isolation performance is adjusted, the vibration isolation effect is improved, the problem of oil leakage is solved by adopting a plurality of layers of corrugated pipes, and the alloy material of the corrugated pipe has various advantages of oil resistance, corrosion resistance, heat resistance, difficulty in aging and the like.
And researching the influence factors of the damping effect of the collapsed multilayer metal corrugated pipe solid-liquid hybrid vibration isolator through theoretical analysis. This system has two distinct states: in the first state, the equation of motion of the system is linear; in the second state, the motion of the system exhibits significant non-smooth non-linearity.
In the first state, the system is in static equilibrium state and is subjected to concentrated acting force F and standard atmospheric pressure PaInternal oil pressure p0So the system force balance equation is
(1)
Where x is the axial deformation of the isolator, k2Representing the stiffness of the bellows vessel, SeRepresents the effective area of the container, determined by its structural geometry.
Assuming that the hydraulic oil is incompressible, the radial rigidity of the bellows structure is large enough, and the volume change of the bellows container is completely caused by the deformation of the elastic unit body without considering the radial deformation. It is assumed that all the elastic units yield completely. So there is the following relationship:
(2)
is prepared by the following formulas (1) and (2):
(3)
wherein,is the axial stiffness of the elastic unit under the action of external hydraulic pressure, approximately regarded as k0Is a constant.
Equation (3) indicates that: the rigidity and the damping are main factors influencing the performance of the vibration isolator, and the vibration isolator can adjust the rigidity of the vibration isolator by changing the number of the unit bodies. That is, the performance of the solid-liquid mixed medium vibration isolator can be changed by changing the number of the elastic unit bodies. Theoretically, the lower the stiffness, the better the performance of the isolator.
Experimental research shows that the solid-liquid hybrid vibration isolator can effectively isolate the earthquake input of the structure, the isolation rate is approximately more than 50%, the earthquake action of the input structure is greatly reduced, and the collapse resistance of the structure can be effectively improved.

Claims (2)

1. The collapse-resistant multilayer metal corrugated pipe solid-liquid mixed vibration isolator is characterized by comprising a corrugated pipe container, hydraulic oil, compressible elastic rubber units and circular patches, wherein a solid-liquid mixed medium consisting of the hydraulic oil and the compressible elastic rubber units is filled in the corrugated pipe container, the whole corrugated pipe container is filled with the solid-liquid mixed medium, any one of air, pressurized gas or vacuum is filled in the compressible elastic rubber units, and the circular patches are welded at the top end and the bottom end of the corrugated pipe container, so that the corrugated pipe container is completely sealed; the rigidity of the hybrid vibration isolator is divided into a linear section and a nonlinear section, the rigidity is provided by the corrugated pipe container and the compressible rubber unit body together at the beginning, after a critical point is reached, the rigidity of the hybrid vibration isolator is provided by the multilayer corrugated pipe container, the critical point is that the elastic restoring force of the compressible rubber unit body is balanced with the internal gas pressure of the compressible rubber unit body, so that the rigidity of the hybrid vibration isolator is determined by the corrugated pipe container and the compressible rubber unit body together, and the position of the critical point is related to the property of the compressible rubber unit body.
2. The collapse-resistant multilayer metal corrugated pipe solid-liquid hybrid vibration isolator according to claim 1, wherein the number of the compressible elastic rubber unit bodies is adjustable, so that the rigidity of the vibration isolator is changed, the vibration isolation effect of the vibration isolator is adjusted, the performance of the vibration isolator is improved, and the collapse resistance of the structure is effectively improved.
CN201610408519.2A 2016-06-13 2016-06-13 Anti-collapse multi-layer metal corrugated pipe solid-liquid mixed vibration isolator Pending CN105909723A (en)

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106108047A (en) * 2016-09-24 2016-11-16 吉首大学 The fresh-keeping immersion tapering rotary drum electric cabinet damping Semen Juglandis that band purifies removes sarcocarp device
CN106108045A (en) * 2016-09-24 2016-11-16 吉首大学 The tapering rotary drum electric cabinet damping Semen Juglandis that band perspective is rejected removes sarcocarp device
CN106108051A (en) * 2016-09-25 2016-11-16 吉首大学 The tapering rotary drum electric cabinet damping Semen Juglandis sarcocarp removing machine of antistaling agent spraying treatment
CN106108050A (en) * 2016-09-25 2016-11-16 吉首大学 Slide carriage belt conveying tapering rotary drum electric cabinet damping Semen Juglandis sarcocarp removing machine
CN106108053A (en) * 2016-09-27 2016-11-16 吉首大学 Slide carriage belt conveying tapering rotary drum electric cabinet damping Semen Juglandis takes off outer sarcocarp machine
CN106108046A (en) * 2016-09-24 2016-11-16 吉首大学 Tapering rotary drum electric cabinet damping Semen Juglandis with fresh-keeping immersion treatment removes sarcocarp device
CN106136257A (en) * 2016-09-28 2016-11-23 吉首大学 Tapering rotary drum electric cabinet damping Semen Juglandis with fresh-keeping immersion treatment washes outer sarcocarp machine
CN106343587A (en) * 2016-09-28 2017-01-25 吉首大学 Screw conveying taper drum type walnut husk washing and packaging machine adopting computer for monitoring feeding
CN106343586A (en) * 2016-09-26 2017-01-25 吉首大学 Screw conveying taper drum type damping walnut husk removal machine provided with electric control cabinet
CN106376956A (en) * 2016-08-28 2017-02-08 吉首大学 Taper rotary drum lily sectioning apparatus with computer monitoring vibration discharging
CN106376957A (en) * 2016-08-28 2017-02-08 吉首大学 Taper rotary drum type lily sectioning apparatus with oxygen-separating immersing water pool
CN106418563A (en) * 2016-09-25 2017-02-22 吉首大学 Lift-feeding taper drum type electric control box damping walnut pulp remover with air drafting function
CN106418566A (en) * 2016-09-26 2017-02-22 吉首大学 Shock-absorption walnut flesh remover with air draft function and drum-type electric control cabinet, capable of increasing feeding conicity
CN106418612A (en) * 2016-09-20 2017-02-22 吉首大学 Taper drum-type device for dehairing and grading of kiwi fruits with computer monitoring of rotation speed
CN106418574A (en) * 2016-09-28 2017-02-22 吉首大学 Taper-rotary-drum-type computer-monitored-feeding walnut external sarcocarp washing, drying and packaging machine
CN106617149A (en) * 2016-09-26 2017-05-10 吉首大学 Screw conveying tapered rotary drum type computer-monitored fed walnut pulp removing package machine
CN106617148A (en) * 2016-09-25 2017-05-10 吉首大学 Automatic hoisting and feeding taper-drum-type electric-cabinet shock-absorbing walnut flesh separating machine
CN108223669A (en) * 2016-12-21 2018-06-29 罗伯特·博世有限公司 Vibration absorber and the gas ejector with vibration absorber
CN110259871A (en) * 2019-01-23 2019-09-20 北京市劳动保护科学研究所 A kind of half active magnetorheological fluid consolidates hybrid isolator
CN110307282A (en) * 2019-06-24 2019-10-08 南京航空航天大学 Zero nonlinear isolation device of pneumatic standard

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CN101701615A (en) * 2009-11-20 2010-05-05 南京航空航天大学 Bellow-type mixed medium vibration isolating and absorbing unit

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106376956A (en) * 2016-08-28 2017-02-08 吉首大学 Taper rotary drum lily sectioning apparatus with computer monitoring vibration discharging
CN106376957A (en) * 2016-08-28 2017-02-08 吉首大学 Taper rotary drum type lily sectioning apparatus with oxygen-separating immersing water pool
CN106418612A (en) * 2016-09-20 2017-02-22 吉首大学 Taper drum-type device for dehairing and grading of kiwi fruits with computer monitoring of rotation speed
CN106108046A (en) * 2016-09-24 2016-11-16 吉首大学 Tapering rotary drum electric cabinet damping Semen Juglandis with fresh-keeping immersion treatment removes sarcocarp device
CN106108047A (en) * 2016-09-24 2016-11-16 吉首大学 The fresh-keeping immersion tapering rotary drum electric cabinet damping Semen Juglandis that band purifies removes sarcocarp device
CN106108045A (en) * 2016-09-24 2016-11-16 吉首大学 The tapering rotary drum electric cabinet damping Semen Juglandis that band perspective is rejected removes sarcocarp device
CN106108051A (en) * 2016-09-25 2016-11-16 吉首大学 The tapering rotary drum electric cabinet damping Semen Juglandis sarcocarp removing machine of antistaling agent spraying treatment
CN106617148A (en) * 2016-09-25 2017-05-10 吉首大学 Automatic hoisting and feeding taper-drum-type electric-cabinet shock-absorbing walnut flesh separating machine
CN106418563A (en) * 2016-09-25 2017-02-22 吉首大学 Lift-feeding taper drum type electric control box damping walnut pulp remover with air drafting function
CN106108050A (en) * 2016-09-25 2016-11-16 吉首大学 Slide carriage belt conveying tapering rotary drum electric cabinet damping Semen Juglandis sarcocarp removing machine
CN106343586A (en) * 2016-09-26 2017-01-25 吉首大学 Screw conveying taper drum type damping walnut husk removal machine provided with electric control cabinet
CN106418566A (en) * 2016-09-26 2017-02-22 吉首大学 Shock-absorption walnut flesh remover with air draft function and drum-type electric control cabinet, capable of increasing feeding conicity
CN106617149A (en) * 2016-09-26 2017-05-10 吉首大学 Screw conveying tapered rotary drum type computer-monitored fed walnut pulp removing package machine
CN106108053A (en) * 2016-09-27 2016-11-16 吉首大学 Slide carriage belt conveying tapering rotary drum electric cabinet damping Semen Juglandis takes off outer sarcocarp machine
CN106343587A (en) * 2016-09-28 2017-01-25 吉首大学 Screw conveying taper drum type walnut husk washing and packaging machine adopting computer for monitoring feeding
CN106418574A (en) * 2016-09-28 2017-02-22 吉首大学 Taper-rotary-drum-type computer-monitored-feeding walnut external sarcocarp washing, drying and packaging machine
CN106136257A (en) * 2016-09-28 2016-11-23 吉首大学 Tapering rotary drum electric cabinet damping Semen Juglandis with fresh-keeping immersion treatment washes outer sarcocarp machine
CN108223669A (en) * 2016-12-21 2018-06-29 罗伯特·博世有限公司 Vibration absorber and the gas ejector with vibration absorber
CN110259871A (en) * 2019-01-23 2019-09-20 北京市劳动保护科学研究所 A kind of half active magnetorheological fluid consolidates hybrid isolator
CN110307282A (en) * 2019-06-24 2019-10-08 南京航空航天大学 Zero nonlinear isolation device of pneumatic standard

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