CN106284725A - A kind of damping-constraining disk plate with slots waveguide absorber and method for designing thereof - Google Patents
A kind of damping-constraining disk plate with slots waveguide absorber and method for designing thereof Download PDFInfo
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- CN106284725A CN106284725A CN201610656148.XA CN201610656148A CN106284725A CN 106284725 A CN106284725 A CN 106284725A CN 201610656148 A CN201610656148 A CN 201610656148A CN 106284725 A CN106284725 A CN 106284725A
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- damping
- slots
- disk plate
- constraining
- constraining disk
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
Abstract
The present invention proposes a kind of damping-constraining disk plate with slots waveguide absorber structure and method for designing thereof, and damping-constraining disk plate with slots waveguide absorber is made up of energy waveguide role and damping-constraining disk plate with slots；Energy waveguide role one end and damping-constraining disk plate with slots center hole secure fit；Damping-constraining disk plate with slots is divided into three layers, and edge is gradually distance from the direction of vibration source, and ground floor is sealing coat, and the second layer is viscoelastic material damping layer, and third layer is restraint layer；In damping-constraining disk plate with slots circumference, damping-constraining disk plate with slots is made up of several non-uniform beams, has groove between adjacent non-uniform beam.Natural vibration characteristic for vibration source, analyze the primary frequency range obtaining absorbing, with the energy absorbing device of energy consumer and the energy reflectivity of export bar as target parameter, the structure proposed according to the present invention, bump leveller parameter reasonable in design, finally realizes reducing to greatest extent the level of vibration of vibration source in absorbing frequency range.
Description
Technical field
The present invention relates to structural vibration reduction field, be specially a kind of damping-constraining disk plate with slots waveguide absorber and design side thereof
Method.
Background technology
Dynamic vibration absorber is a kind of a kind of structure utilizing resonance principle to absorb object vibrational energy, and simplest power is inhaled
The device that shakes is mass spring resonance system, i.e. oscillator bump leveller, and it produces counteracting force when resonance can make the vibration water of vibration source
Pancake is low.But oscillator bump leveller kinetic parameter is immutable, absorbing frequency band is narrow, so proposing beam-type dynamic vibration absorber later,
Mainly having uniform beam, non-uniform beam and annular girder, be possible not only to increase absorbing frequency range, basic parameter can also regulate.
In order to improve the absorbing efficiency of bump leveller further, German scholar Ungar Eric E. and Kurzwell
Leonard G proposes based on viscoelastic material high-damping Energy Dissipation Mechanism and the waveguide absorber of dynamic absorber principle, and it has
It is same as the distinguishing feature of dynamic vibration absorber: having good shock attenuation result in wider frequency range, meanwhile, installation site is general
At the big dynamic respond point of vibration source, therefore, construction is simple, flexibly.
Waveguide absorber is typically made up of energy waveguide role and energy consumer two parts, and the research that beam class energy consumer is initial is right
As, if the energy consumer in waveguide absorber is the disk having narrow slot, then, disk plate with slots is i.e. considered as some beam classes consumption
The parallel connection of energy device, it is possible to increase the power consumption rate of energy consumer.But it is not enough that current waveguide absorber still suffers from absorbing frequency range, inhale
Shake inefficient problem.
Summary of the invention
In order to reduce the level of vibration of vibrating object expeditiously, increasing absorbing frequency range, the present invention proposes one
Damping-constraining disk plate with slots waveguide absorber structure and method for designing thereof, for the natural vibration characteristic of vibration source, analyze and inhaled
The primary frequency range shaken, with the energy absorbing device of energy consumer and the energy reflectivity of export bar as target parameter, according to this
The structure of bright proposition, bump leveller parameter reasonable in design, finally realize in absorbing frequency range, reduce vibration source to greatest extent
Level of vibration.
The technical scheme is that
Described a kind of damping-constraining disk plate with slots waveguide absorber, it is characterised in that: by energy waveguide role and damping-constraining
Disk plate with slots forms；
Described energy waveguide role one end is used for being fixed in vibrating object outer surface, the other end and damping-constraining disk plate with slots
Heart circular hole secure fit；
Described damping-constraining disk plate with slots is divided into three layers, and edge is gradually distance from the direction of vibration source, and ground floor is sealing coat, and second
Layer is viscoelastic material damping layer, and third layer is restraint layer；Damping-constraining disk plate with slots circumference, damping-constraining disk plate with slots by
Several non-uniform beams form, and have groove between adjacent non-uniform beam.
Further preferred version, described a kind of damping-constraining disk plate with slots waveguide absorber, it is characterised in that: sealing coat
With between damping layer, be connected by adhesive means between damping layer and restraint layer.
Further preferred version, described a kind of damping-constraining disk plate with slots waveguide absorber, it is characterised in that: sealing coat
The metal material that density is little, elastic modelling quantity is big is used with restraint layer.
Further preferred version, described a kind of damping-constraining disk plate with slots waveguide absorber, it is characterised in that: sealing coat
Aluminum is used with restraint layer.
The method for designing of described a kind of damping-constraining disk plate with slots waveguide absorber, it is characterised in that: comprise the following steps:
Step 1: analyze the natural vibration characteristic of vibrating object, determine the frequency range needing vibration damping；
Step 2: set up damping-constraining disk plate with slots phantom, with the damping loss factor of damping-constraining disk plate with slots be
Target parameter, with the ratio of the thickness between thickness ratio and damping layer and the restraint layer between sealing coat and damping layer for optimizing change
Amount, by simulation optimization computing, it is thus achieved that make the maximum sealing coat of the damping loss factor of damping-constraining disk plate with slots, damping layer and
Optimum thickness ratio between restraint layer；
Step 3: the damping-constraining disk plate with slots structural parameters obtained according to step 2, sets up damping-constraining disk plate with slots ripple
Lead bump leveller phantom, with the energy reflectivity of energy waveguide role and the energy absorbing device of damping-constraining disk plate with slots as target
Parameter, with energy waveguide role diameter and length, damping-constraining disk plate with slots thickness, diameter, fluting number and fluting central angle
For optimized variable, by simulation optimization computing, it is thus achieved that make energy waveguide role energy reflectivity minimum, and damping-constraining disk plate with slots
Energy waveguide role diameter during energy absorbing device maximum and length, damping-constraining disk plate with slots thickness, diameter, fluting number and
Fluting central angle.
Beneficial effect
The present invention proposes a kind of novel waveguide absorber structure and method for designing thereof, by this structure, vibrating object
Vibrational energy pass to damping-constraining disk plate with slots by energy waveguide role, utilize damping-constraining disk plate with slots non-linear,
The characteristics such as high-damping, can play good effectiveness in vibration suppression.And for concrete vibration environment, by analyzing consolidating of vibrating object
There is vibration characteristics, determine the frequency range of vibration damping, as the design considerations of bump leveller；It is then determined that bump leveller geometric parameter is
The figure of merit so that bump leveller system is in resonance state, meets the energy reflection of energy waveguide role in absorbing frequency range simultaneously
The condition that rate is sufficiently small, the energy absorbing device of damping-constraining disk plate with slots is the biggest.The present invention the most existing waveguide absorbing
For device, absorbing frequency range can be increased, absorbing efficiency is greatly improved, thus realize highly effective in compared with alleviating distention in middle-JIAO low-frequency range
Ground reduces the level of vibration of vibration source.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage are from combining the accompanying drawings below description to embodiment and will become
Substantially with easy to understand, wherein:
Fig. 1 is novel damping-constraining disk plate with slots waveguide absorber structural representation；
Fig. 2 is the top view of damping-constraining disk plate with slots；
Fig. 3 is bump leveller and slab construction connection schematic diagram；
Fig. 4 is the vibratory response installing the damping-constraining forward and backward flat board of disk plate with slots bump leveller.
Wherein: 1-metal restriction layer 2-damping layer 3-sealing coat 4-energy waveguide role 5-sulculus 6-non-uniform beam 7-
Slab construction.
Detailed description of the invention
Embodiments of the invention are described below in detail, and described embodiment is exemplary, it is intended to be used for explaining the present invention, and
It is not considered as limiting the invention.
The invention aims to further high efficiency and reduce the level of vibration of vibrating object, increase absorbing frequency model
Enclosing, propose a kind of damping-constraining disk plate with slots waveguide absorber structure and method for designing thereof for this, intrinsic for vibration source shakes
Dynamic characteristic, analyzes the primary frequency range obtaining absorbing, with energy absorbing device and the energy reflection of energy waveguide role of energy consumer
Rate is target parameter, the structure proposed according to the present invention, and bump leveller parameter reasonable in design finally realizes in absorbing frequency range
Reduce the level of vibration of vibration source the most to greatest extent.
Wherein damping-constraining disk plate with slots waveguide absorber is made up of energy waveguide role and damping-constraining disk plate with slots；
Described energy waveguide role one end is used for being fixed in vibrating object outer surface, the other end and damping-constraining disk plate with slots
Heart circular hole secure fit；
Described damping-constraining disk plate with slots is divided into three layers, and edge is gradually distance from the direction of vibration source, and ground floor is sealing coat, and second
Layer is viscoelastic material damping layer, and third layer is restraint layer；Damping-constraining disk plate with slots circumference, damping-constraining disk plate with slots by
Several non-uniform beams form, and have groove between adjacent non-uniform beam.
Between sealing coat with damping layer, it is connected by adhesive means between damping layer and restraint layer.
Sealing coat and restraint layer use the metal material that density is little, elastic modelling quantity is big, such as aluminum.
Based on above-mentioned damping-constraining disk plate with slots waveguide absorber structure, its method for designing comprises the following steps:
Step 1: analyze the natural vibration characteristic of vibrating object, determine the frequency range needing vibration damping；
Step 2: set up damping-constraining disk plate with slots phantom, with the damping loss factor of damping-constraining disk plate with slots be
Target parameter, with the ratio of the thickness between thickness ratio and damping layer and the restraint layer between sealing coat and damping layer for optimizing change
Amount, by simulation optimization computing, it is thus achieved that make the maximum sealing coat of the damping loss factor of damping-constraining disk plate with slots, damping layer and
Optimum thickness ratio between restraint layer；
Step 3: the damping-constraining disk plate with slots structural parameters obtained according to step 2, sets up damping-constraining disk plate with slots ripple
Lead bump leveller phantom, with the energy reflectivity of energy waveguide role and the energy absorbing device of damping-constraining disk plate with slots as target
Parameter, with energy waveguide role diameter and length, damping-constraining disk plate with slots thickness, diameter, fluting number and fluting central angle
For optimized variable, by simulation optimization computing, it is thus achieved that make energy waveguide role energy reflectivity minimum, and damping-constraining disk plate with slots
Energy waveguide role diameter during energy absorbing device maximum and length, damping-constraining disk plate with slots thickness, diameter, fluting number and
Fluting central angle.
Based on above-mentioned principle, specific embodiment described below:
The present embodiment is as a example by the vibration reducing one flat plate, and experiment is measured and installed damping-constraining disk plate with slots bump leveller
Forward and backward plate vibration level.Its middle plateform uses aluminum.Energisation mode is some power excitation, and normal direction is applied downwardly to flat board
On.Connection between bump leveller and flat board is as shown in Figure 3.
Fig. 4 show the plate vibration AL Acceleration Level that damping-constraining disk plate with slots is forward and backward of installing that simulation calculation obtains, figure
In " " represent vibratory response before absorbing, "--" represents the response of absorbing after vibration, and " " is always shaken before representing absorbing level,
" " represents level of always shaking after absorbing.It can be seen that bump leveller structure of the present invention can be at wider medium and low frequency
In the range of rate, (100Hz-2kHz) is effectively reduced the vibratory response of vibrating object, especially can reduce the intrinsic frequency of vibrating object
Vibration peak near rate, the global vibration level in whole analysis frequency range can reduce 15dB.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example
Property, it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art is without departing from the principle of the present invention and objective
In the case of above-described embodiment can be changed within the scope of the invention, revise, replace and modification.
Claims (5)
1. a damping-constraining disk plate with slots waveguide absorber, it is characterised in that: slotted round by energy waveguide role and damping-constraining
Dish forms；
Described energy waveguide role one end is used for being fixed on vibrating object outer surface, the other end and damping-constraining disk plate with slots center circle
Hole secure fit；
Described damping-constraining disk plate with slots is divided into three layers, and edge is gradually distance from the direction of vibration source, and ground floor is sealing coat, and the second layer is
Viscoelastic material damping layer, third layer is restraint layer；In damping-constraining disk plate with slots circumference, damping-constraining disk plate with slots is by some
Individual non-uniform beam forms, and has groove between adjacent non-uniform beam.
A kind of damping-constraining disk plate with slots waveguide absorber, it is characterised in that: sealing coat and damping
Between Ceng, it is connected by adhesive means between damping layer and restraint layer.
A kind of damping-constraining disk plate with slots waveguide absorber, it is characterised in that: sealing coat and constraint
Layer uses the metal material that density is little, elastic modelling quantity is big.
A kind of damping-constraining disk plate with slots waveguide absorber, it is characterised in that: sealing coat and constraint
Layer uses aluminum.
5. the method for designing of a damping-constraining disk plate with slots waveguide absorber as claimed in claim 1, it is characterised in that: include
Following steps:
Step 1: analyze the natural vibration characteristic of vibrating object, determine the frequency range needing vibration damping；
Step 2: set up damping-constraining disk plate with slots phantom, with the damping loss factor of damping-constraining disk plate with slots as target
Parameter is with the thickness ratio between thickness ratio and damping layer and the restraint layer between sealing coat and damping layer as optimized variable, logical
Cross simulation optimization computing, it is thus achieved that make sealing coat, damping layer and constraint that the damping loss factor of damping-constraining disk plate with slots is maximum
Optimum thickness ratio between Ceng；
Step 3: the damping-constraining disk plate with slots structural parameters obtained according to step 2, sets up damping-constraining disk plate with slots waveguide and inhales
Shake device phantom, joins with the energy reflectivity of energy waveguide role and the energy absorbing device of damping-constraining disk plate with slots for target
Amount, with energy waveguide role diameter and length, damping-constraining disk plate with slots thickness, diameter, fluting number and fluting central angle are
Optimized variable, by simulation optimization computing, it is thus achieved that make energy waveguide role energy reflectivity minimum, and damping-constraining disk plate with slots energy
Energy waveguide role diameter during amount dissipative shock wave maximum and length, damping-constraining disk plate with slots thickness, diameter, fluting number and open
Groove central angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610656148.XA CN106284725B (en) | 2016-08-11 | 2016-08-11 | A kind of damping-constraining disk plate with slots waveguide absorber and its design method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610656148.XA CN106284725B (en) | 2016-08-11 | 2016-08-11 | A kind of damping-constraining disk plate with slots waveguide absorber and its design method |
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| Publication Number | Publication Date |
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| CN106284725A true CN106284725A (en) | 2017-01-04 |
| CN106284725B CN106284725B (en) | 2019-03-29 |
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| CN201610656148.XA Expired - Fee Related CN106284725B (en) | 2016-08-11 | 2016-08-11 | A kind of damping-constraining disk plate with slots waveguide absorber and its design method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230657A (en) * | 2019-07-15 | 2019-09-13 | 苏州英磁新能源科技有限公司 | A kind of more damping layer locally resonant subelements and its application method |
| CN113513101A (en) * | 2021-07-22 | 2021-10-19 | 同济大学 | Tuning vibration absorption device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0443564A2 (en) * | 1990-02-22 | 1991-08-28 | Buchtal Gesellschaft mit beschränkter Haftung | Absorber for electromagnetic waves |
| CN201306407Y (en) * | 2008-09-24 | 2009-09-09 | 上海众力汽车部件有限公司 | Dynamic vibration absorber |
| CN203395066U (en) * | 2013-07-02 | 2014-01-15 | 上海通用汽车有限公司 | Vibration absorber |
-
2016
- 2016-08-11 CN CN201610656148.XA patent/CN106284725B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0443564A2 (en) * | 1990-02-22 | 1991-08-28 | Buchtal Gesellschaft mit beschränkter Haftung | Absorber for electromagnetic waves |
| CN201306407Y (en) * | 2008-09-24 | 2009-09-09 | 上海众力汽车部件有限公司 | Dynamic vibration absorber |
| CN203395066U (en) * | 2013-07-02 | 2014-01-15 | 上海通用汽车有限公司 | Vibration absorber |
Non-Patent Citations (2)
| Title |
|---|
| 冯丹凤: "开槽圆盘波导吸振器耗能及其导出杆研究", 《华中理工大学学报》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230657A (en) * | 2019-07-15 | 2019-09-13 | 苏州英磁新能源科技有限公司 | A kind of more damping layer locally resonant subelements and its application method |
| CN113513101A (en) * | 2021-07-22 | 2021-10-19 | 同济大学 | Tuning vibration absorption device |
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| Publication number | Publication date |
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| CN106284725B (en) | 2019-03-29 |
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