CN108916302A - A kind of combined type wideband powered shock absorption device - Google Patents
A kind of combined type wideband powered shock absorption device Download PDFInfo
- Publication number
- CN108916302A CN108916302A CN201810955036.3A CN201810955036A CN108916302A CN 108916302 A CN108916302 A CN 108916302A CN 201810955036 A CN201810955036 A CN 201810955036A CN 108916302 A CN108916302 A CN 108916302A
- Authority
- CN
- China
- Prior art keywords
- mass block
- frame body
- unit
- combined type
- shock absorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The present invention relates to a kind of combined type wideband powered shock absorption devices, are made of unit connection framework and the multiple dynamic absorber units being mounted in unit connection framework；For the present invention using the damping matrix of unified size, dynamic absorber unit, can be targetedly to multiple discrete frequencies progress absorbings by frame body combination；The present invention is made of damping matrix and mass block two parts, simple and reliable for structure, and working frequency variation range is wide, and when adjusting mass block relative position, working frequency changing sensitivity is high.The present invention is applied to use light foam class material in the vibration problem of vehicle and aircraft, is effectively reduced weight；Silica gel or rubber damping material are used in being applied to underwater vibration problem, meet resistance to pressure, sound transparency and hydrodynamic force demand；High temperature resistant damping material is used under high temperature environment, it is applied widely.
Description
Technical field
The present invention relates to absorbing apparatus field more particularly to a kind of combined type wideband powered shock absorption devices.
Background technique
Dynamic vibration absorber is a kind of classical way for reducing mechanical equipment structural vibration, in building, traffic, ship, aviation
There is application with ocean engineering field.The structure of dynamic vibration absorber is mainly quality-spring-damped oscillator system, using altogether
Vibrating system absorbs the energy of object to reduce the equipment of object vibration.The defect of dynamic vibration absorber is that its frequency selectivity is special
By force, when the resonant frequency of object vibration frequency departure dynamic vibration absorber, it will fail.In order to adapt to object difference vibration frequency
Vibration damping demand, dynamic vibration absorber should have wider or adjustable working frequency.
There are mainly two types of present passive type dynamic vibration absorbers, a kind of such as Chinese patent CN205001430U (patent name：One
Kind dynamic vibration absorber) and CN205064668U (patent name：Bump leveller), modular rubber block is carried out according to different needs
It arranges in pairs or groups with mass block, by the dynamic vibration absorber of the multiple and different resonant frequencies of arrangement, can achieve the purpose of wideband absorbing, it is this
Method versatility is high, and installing and dismounting is simple；Another such as Chinese patent CN204512268U (patent name：Dynamic vibration absorber) and
CN105333047A (patent name：Dynamic vibration absorber), rubber block is squeezed or stretched by mechanical component, changes the elasticity of rubber
Parameter, this method can continuously adjust resonant frequency, better adaptability, but structure is relative complex.Damping material
The material that solid vibrational energy can be transformed into thermal energy and dissipated, extensive use and vibration and noise control.Composite damping structure
Metal is added in the damping materials matrix such as rubber, plastics or foam or non-metallic fillers (particle or fiber) are combined,
When being vibrated, since the Friction dissipation vibrational energy of between matrix and filler interface and substrate molecule itself reaches
The purpose of damping.Damping material is obvious in medium-high frequency effect, but when damping material use is in the confined space, than like flying
Machine covering interlayer etc., 500Hz damping below is poor, it is difficult to meet vibration damping demand.Therefore, it is necessary to combine dynamic vibration absorber
The advantages of and the respective feature of composite damping structure for different vibration operating conditions propose a kind of wideband absorbing dress of novelty
It sets.
Summary of the invention
The applicant is directed to above-mentioned existing issue, has carried out Improvement, provides a kind of combined type wideband dynamic absorber dress
It sets, has the advantages that design structure is reliable, tuning is simple.
The technical solution adopted in the present invention is as follows：
A kind of combined type wideband powered shock absorption device by unit connection framework and is mounted on more in unit connection framework
A dynamic absorber unit composition；
The specific structure of the unit connection framework is as follows：
Including a frame body, installing more respectively in the quadrilateral structure that the top of the frame body and bottom enclose is in
The lateral connection gusset and longitudinally connected gusset of interlaced arrangement, the lateral connection gusset and longitudinally connected gusset make four side
It is separated to form in shape structure multiple for embedding the unit preformed groove of dynamic absorber unit；
The specific structure of the dynamic absorber unit is as follows：
Including damping matrix, lumen therethrough is vertically offered on the damping matrix, on being arranged in the lumen therethrough
Mass block is arranged inside the lumen therethrough, between upper and lower two limited location snap rings in lower two limited location snap rings.
Its further technical solution is：
The frame body is rectangle frame frame body, and the damping matrix is the rectangular parallelepiped structure that bottom surface is square；
More vertical connecting ribs, at least two pieces of quadrangles are also arranged along the quadrilateral structure of the frame body surrounding
Vertical connecting rib in structure is vertical connection coplanar with lateral connection gusset, at least other two pieces of quadrilateral structures
Gusset is coplanar with longitudinally connected gusset；At the top of the frame body, in the quadrilateral structure that bottom encloses, in the lateral connection
Gusset also connect vertical connecting rib with the intersection of longitudinally connected gusset；
The section of the lumen therethrough and the cross sectional shape of mass block are identical, mass block circle made of big density material
Cylinder, the outer diameter of the cylindrical body are adapted with the internal diameter of the lumen therethrough；
Edge along frame body bottom surrounding also sets up multiple outward flanges, opens up on each outward flange for fixing
The bolt hole of frame body；
When height of the mass block inside damping matrix lumen therethrough tapers off, the resonant frequency of dynamic absorber unit is in
It is incremented by；The height of the mass block is constant, the mass block is when damping the thickness inside matrix lumen therethrough in being incremented by, described dynamic
The resonant frequency of power absorbing unit tapers off；The thickness of the mass block and height and position relative to lumen therethrough it is constant,
When the Young's modulus of the damping matrix is incremented by, the resonant frequency of the dynamic absorber unit is in incremental.
Beneficial effects of the present invention are as follows：
For the present invention using the damping matrix of unified size, dynamic absorber unit, can be targeted by frame body combination
Absorbings are carried out to multiple discrete frequencies；The present invention is made of damping matrix and mass block two parts, simple and reliable for structure, work
Working frequency variation range is wide, and when adjusting mass block relative position, working frequency changing sensitivity is high.The present invention be applied to vehicle and
Light foam class material is used in the vibration problem of aircraft, is effectively reduced weight；In being applied to underwater vibration problem
Using silica gel or rubber damping material, meet resistance to pressure, sound transparency and hydrodynamic force demand；High temperature resistant is used under high temperature environment
Damping material, it is applied widely.
Detailed description of the invention
Fig. 1 is the schematic diagram of single dynamic absorber unit in the present invention.
Fig. 2 is the structural schematic diagram of unit connection framework in the present invention.
Fig. 3 is the structural schematic diagram that dynamic absorber unit is mounted on unit connection framework in the present invention.
Fig. 4 is the cross-sectional view of the single dynamic absorber unit of the present invention.
Fig. 5 is schematic cross-sectional view of the present invention after installing dynamic absorber unit.
Wherein：1, dynamic absorber unit；101, lumen therethrough；102, mass block；103, limited location snap ring；2, unit connects frame
Frame；201, lateral connection gusset；202, vertical connecting rib；203, longitudinally connected gusset；204, outward flange；205, unit is reserved
Slot.
Specific embodiment
Illustrate a specific embodiment of the invention below.
As shown in Figure 1, Figure 2 and Figure 3, a kind of combined type wideband powered shock absorption device packet is by unit connection framework 2 and peace
Multiple dynamic absorber units 1 composition in unit connection framework 2；
As shown in Figure 1, the combined type wideband powered shock absorption device of the present embodiment, by unit connection framework 2 and is mounted on
Multiple dynamic absorber units 1 composition in unit connection framework 2；
The specific structure of unit connection framework 2 is as follows：
Including a frame body, frame body is rectangle frame frame body, in the quadrilateral structure that the top of frame body and bottom enclose
It is middle install respectively more be in interlaced arrangement lateral connection gusset 201 and longitudinally connected gusset 203, lateral connection gusset 201 and
Longitudinally connected gusset 203 makes to be separated to form in quadrilateral structure multiple for embedding the unit preformed groove of dynamic absorber unit 1
205；More vertical connecting rib 202, at least two pieces of quadrilateral structures are also arranged along the quadrilateral structure of frame body surrounding
In vertical connecting rib 202 be vertical company coplanar with lateral connection gusset 201, at least other two pieces of quadrilateral structures
It is coplanar with longitudinally connected gusset 203 to connect gusset 202；At the top of frame body, in the quadrilateral structure that bottom encloses, in lateral connection
Gusset 201 also connect vertical connecting rib 202 with the intersection of longitudinally connected gusset 203, and above-mentioned vertical connecting rib 202 is used for
Separating element preformed groove 205.Multiple outward flanges 204 are also opened up along the edge of frame body bottom surrounding, on each outward flange 204
Open up the bolt hole for fixed frame frame body.
The specific structure of dynamic absorber unit 1 is as follows：
Including damping matrix, damping matrix is the rectangular parallelepiped structure that bottom surface is square.It is vertically opened on damping matrix
Equipped with lumen therethrough 101, in two limited location snap rings 103 up and down are arranged in lumen therethrough 101, inside lumen therethrough 101, in upper and lower two
Mass block 102 is set between limited location snap ring 103.The section of lumen therethrough 101 is identical as the cross sectional shape of mass block 102, mass block
The outer diameter of 102 cylindrical bodies made of big density material, cylindrical body is adapted with the internal diameter of lumen therethrough 101
When the height that the thickness of mass block 102 is constant, mass block 102 is inside damping matrix lumen therethrough 101 tapers off, move
The resonant frequency of power absorbing unit 1 is in incremental；The height of mass block 102 is constant, mass block 102 is damping matrix lumen therethrough 101
When internal thickness is in being incremented by, the resonant frequency of dynamic absorber unit 1 tapers off；The thickness of mass block 102 and relative to passing through
When the height and position of cavity 101 is constant, the Young's modulus of damping matrix is incremented by, the resonant frequency of dynamic absorber unit 1 is presented
Increase.
As shown in figure 5, the size for damping matrix in the present invention is fixed as 20 × 20 × 60mm, Young's modulus 5MPa is close
Degree is 1200kg/m3, and damping matrix selects big dense steel material in the present embodiment, mass block 102 it is constant with a thickness of 10mm, respectively
Mass block 102 respectively with height 50mm, 40mm, 30mm and 20mm arrangement when, resonant frequency of the invention be respectively 204Hz,
212Hz, 226Hz and 242Hz.When the height of mass block 102 is that 30mm is constant, thickness of the mass block 102 in lumen therethrough 101 divides
Not Wei 10mm, 20mm and 30mm when, the resonant frequency of dynamic absorber unit 1 is respectively 226Hz, 194Hz and 172Hz.Therefore, matter
The relative altitude and thickness of gauge block 102 can change the resonant frequency of dynamic absorber unit 1 with moderate range by a small margin.Work as quality
102 thickness of block and relative position are constant, when damping matrix Young's modulus is respectively 5MPa, 10MPa and 20MPa, dynamic absorber list
The resonant frequency of member 1 is respectively 212Hz, 318Hz and 442Hz.Therefore, select the damping basis material of different elasticity can be larger
The resonant frequency of the change dynamic absorber unit 1 of amplitude.
As shown in figs. 3 and 5, the corresponding absorbing frequency of each dynamic absorber unit 1, effective absorbing bandwidth is smaller,
Therefore it needs to be inserted into the continuous dynamic absorber unit 1 of multiple resonant frequencies in unit connection framework 2, so that the present invention reaches wide
The effect of frequency absorbing.The present invention can be fixed in the structure and equipment that need absorbing by threaded hole, be reduced perpendicular to connection
The vibrational energy in face.
Above description is explanation of the invention, is not intended to limit the invention, and limited range of the present invention is referring to right
It is required that the present invention can make any type of modification without prejudice to basic structure of the invention.
Claims (6)
1. a kind of combined type wideband powered shock absorption device, it is characterised in that：By unit connection framework (2) and it is mounted on unit company
Connect multiple dynamic absorber units (1) composition in frame (2)；
The specific structure of the unit connection framework (2) is as follows：
Including a frame body, more are installed respectively in the quadrilateral structure that the top of the frame body and bottom enclose in staggeredly
The lateral connection gusset (201) and longitudinally connected gusset (203) of arrangement, the lateral connection gusset (201) and longitudinally connected muscle
Plate (203) makes to be separated to form in the quadrilateral structure multiple for embedding the unit preformed groove (205) of dynamic absorber unit；
The specific structure of the dynamic absorber unit (1) is as follows：
Including damping matrix, lumen therethrough (101) are vertically offered on the damping matrix, in the lumen therethrough (101)
Two limited location snap rings (103) up and down are set, are set in the lumen therethrough (101) inside, between upper and lower two limited location snap rings (103)
Set mass block (102).
2. a kind of combined type wideband powered shock absorption device as described in claim 1, it is characterised in that：The frame body is rectangle
Frame body, the damping matrix are the rectangular parallelepiped structure that bottom surface is square.
3. a kind of combined type wideband powered shock absorption device as described in claim 1, it is characterised in that：Along the frame body surrounding
Quadrilateral structure in also arrange more vertical connecting rib (202), the vertical dowel at least two pieces of quadrilateral structures
Plate (202) is vertical connecting rib coplanar with lateral connection gusset (201), at least other two pieces of quadrilateral structures
(202) coplanar with longitudinally connected gusset (203)；At the top of the frame body, in the quadrilateral structure that bottom encloses, in the cross
Vertical connecting rib (202) are also connect with the intersection of longitudinally connected gusset (203) to connecting rib (201).
4. a kind of combined type wideband powered shock absorption device as described in claim 1, it is characterised in that：The lumen therethrough (101)
Section it is identical as the cross sectional shape of mass block (102), mass block (102) cylindrical body made of big density material, institute
The outer diameter for stating cylindrical body is adapted with the internal diameter of the lumen therethrough (101).
5. a kind of combined type wideband powered shock absorption device as described in claim 1, it is characterised in that：Along the frame body bottom
The edge of surrounding also sets up multiple outward flanges (204), and the bolt hole for fixed frame frame body is opened up on each outward flange (204)
(204)。
6. a kind of combined type wideband powered shock absorption device as described in claim 1, it is characterised in that：The mass block (102)
Thickness is constant, the mass block (102) is when damping matrix lumen therethrough (101) internal height and tapering off, dynamic absorber list
The resonant frequency of first (1) is in incremental；The height of the mass block (102) is constant, the mass block (102) is in damping matrix perforation
When the internal thickness of chamber (101) is in being incremented by, the resonant frequency of the dynamic absorber unit (1) tapers off；The mass block (102)
Thickness and the Young's modulus of constant, the described damping matrix of height and position relative to lumen therethrough (101) when being incremented by, it is described
The resonant frequency of dynamic absorber unit (1) is in incremental.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810955036.3A CN108916302B (en) | 2018-08-21 | 2018-08-21 | Combined broadband dynamic vibration absorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810955036.3A CN108916302B (en) | 2018-08-21 | 2018-08-21 | Combined broadband dynamic vibration absorption device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108916302A true CN108916302A (en) | 2018-11-30 |
| CN108916302B CN108916302B (en) | 2020-02-07 |
Family
ID=64405164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810955036.3A Active CN108916302B (en) | 2018-08-21 | 2018-08-21 | Combined broadband dynamic vibration absorption device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108916302B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578479A (en) * | 2018-12-19 | 2019-04-05 | 中国科学院长春应用化学研究所 | Vibration piece and the controllable underwater wideband vibration isolator of damping |
| CN110230659A (en) * | 2019-05-10 | 2019-09-13 | 华中科技大学 | A kind of vertical isolation mounting of periodicity |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1661524A1 (en) * | 1988-06-20 | 1991-07-07 | Научно-производственный центр при Николаевском кораблестроительном институте им.адм.С.О.Макарова | String-type vibration damper |
| CN102943840A (en) * | 2012-11-05 | 2013-02-27 | 中国船舶重工集团公司第七〇五研究所 | Perforated constrained damping structure used for reducing vibration and insulating sound of ship |
| CN103335061A (en) * | 2013-07-10 | 2013-10-02 | 青岛科而泰环境控制技术有限公司 | Wheel vibration absorber |
| CN103335057A (en) * | 2013-07-10 | 2013-10-02 | 青岛科而泰环境控制技术有限公司 | Tuned mass damper with frame |
-
2018
- 2018-08-21 CN CN201810955036.3A patent/CN108916302B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1661524A1 (en) * | 1988-06-20 | 1991-07-07 | Научно-производственный центр при Николаевском кораблестроительном институте им.адм.С.О.Макарова | String-type vibration damper |
| CN102943840A (en) * | 2012-11-05 | 2013-02-27 | 中国船舶重工集团公司第七〇五研究所 | Perforated constrained damping structure used for reducing vibration and insulating sound of ship |
| CN103335061A (en) * | 2013-07-10 | 2013-10-02 | 青岛科而泰环境控制技术有限公司 | Wheel vibration absorber |
| CN103335057A (en) * | 2013-07-10 | 2013-10-02 | 青岛科而泰环境控制技术有限公司 | Tuned mass damper with frame |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578479A (en) * | 2018-12-19 | 2019-04-05 | 中国科学院长春应用化学研究所 | Vibration piece and the controllable underwater wideband vibration isolator of damping |
| CN109578479B (en) * | 2018-12-19 | 2019-09-27 | 中国科学院长春应用化学研究所 | Vibration piece and the controllable underwater wideband vibration isolator of damping |
| CN110230659A (en) * | 2019-05-10 | 2019-09-13 | 华中科技大学 | A kind of vertical isolation mounting of periodicity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108916302B (en) | 2020-02-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109518547B (en) | Steel rail noise reduction damper, manufacturing and mounting method thereof and vibration and noise reduction method | |
| CN106013489B (en) | One kind incidentally damping multidirectional negative stiffness device | |
| CN108916302A (en) | A kind of combined type wideband powered shock absorption device | |
| CN106869568A (en) | A kind of three-dimensional isolation vibration absorber and its shock insulation oscillation damping method | |
| CN103874812A (en) | Passive damper | |
| CN105351442A (en) | Inerter and rubber composite absorber with broadband shock absorption performance | |
| CN204174776U (en) | A kind of piston cantilever impact type tuned mass damper, TMD | |
| CN102518727A (en) | Totally-closed rigidity adjustable type vibration isolator | |
| CN104762853A (en) | Rubber vibration isolator for floating slab track | |
| WO2019192184A1 (en) | Hydraulic power anti-resonance vibration isolator having adjustable anti-resonance frequency | |
| CN205134616U (en) | Foamed aluminium - steel sheet viscous damping wall can reset | |
| CN104929263A (en) | Assembled lead-foamed aluminum composite damper for building vibration reduction | |
| CN104878839B (en) | The special-shaped shock isolating pedestal of high-bearing capacity | |
| CN103047335A (en) | Inertial resistance type vibration absorber | |
| CN1236144C (en) | Railway traffic floating slab vibration isolator with high damping shock absorption module | |
| CN205173362U (en) | Be used to hold and rubber combined shock absorber with wide band vibration damping | |
| CN108386474A (en) | A kind of dry damping device | |
| CN201495459U (en) | Steel rail damped vibration absorber | |
| CN211447263U (en) | Vibration isolation support structure based on hydraulic viscous damping and particle damping | |
| CN201202759Y (en) | Composite damping elastic support | |
| CN206861162U (en) | A kind of damping base | |
| CN108360372B (en) | One kind having horizontal anisotropic rigidity and anti-impact characteristic isolation bridge device | |
| AU2004269176B2 (en) | Method and device for filtering and damping vibrations | |
| CN216589735U (en) | Flexible resonance liquid damper for wind turbine unit | |
| KR101266831B1 (en) | Tuned Mass Damper Using Metal Plate Spring and Vibration Isolation Base Using the Tuned Mass Damper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |