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Solutions Vibration Damping

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Alpha GEL’s exceptional vibration damping functionality, combined with highly soft physical properties, makes it far superior to conventional rubber dampers. Alpha GEL dampers can be used in both sensitive precision components and large-scale machinery for low to high frequency vibrations. Alpha GEL offers unique solutions for all of your vibration damping needs.

Characteristics

●Excellent Vibration Damping Functionality
Alpha GEL displays exceptional damping functionality (Loss Factor tanδ, etc.). Its high softness and pliability give Alpha GEL this great vibration damping and vibration control performance.
●Silicone Vibration Dampers
Alpha GEL is a silicone-based material that combines softness and durability with a very low compression set. It can be used at a wide range of temperatures (-40°C - 200°C), resulting in unrivaled long-term reliability.
●Effective at Low Frequencies and
Ultra-Low Loads
Alpha GEL products offer solutions for both small, sensitive parts and large-scale heavy machinery.Alpha GEL excels in protecting parts from low frequency vibrations and effectively reduces vibrations at a wide range of frequencies.
●Custom Vibration Protection and Damping
Profiles
We employ over 30 years of experience in the field of vibration control to offer you a product with a customized size, hardness, and damping profile. We are happy to help you find the right product to meet your needs.

Application Example

By inserting Alpha GEL between a vibration source and adjoining equipment/components, vibration transmission is reduced.
This protects the equipment/components and also reduces noise.

Protection from outside vibration
Protection from inside vibration

Mechanism

Vibration damping
Vibration damping is a method to reduce the number of vibration-associated malfunctions by mitigating vibration transmission. Taking vibration damping steps for motors, pumps, and other tremor-producing machinery reduces the extent of vibration transmitted to peripheral facilities, in turn cutting down vibration-related noise and vibration levels in surrounding areas and allowing for achieving a better environment. This approach is also effective in mitigating vibration coming from areas around vibration-sensitive machinery, but in such cases the approach is called vibration isolation to draw a distinction between vibration damping.
The principle of vibration damping
(vibration isolation)
Provided below is the vibration transmitted to peripheral facilities when the machinery generating vibration has an elastic-body-supported structure: (See Figure A)
  • τ:Vibration conductivity
  • F:Vibration level transmitted to peripheral facilities
  • F0:Vibration level of vibration-generating machinery
  • f: Vibration frequency of vibration-generating machinery
  • f0:Natural frequency of elastically supported machinery
The ratio of f and f0 (f/f0) is called the frequency ratio. Figure B shows the frequency ratio and conductivity. Figure C indicates the relationship between the frequency ratio and vibration damping effect. Bringing down the natural frequency f0 is important in dampening wider frequency bands. Natural frequency f0 (Hz) can be expressed by the equation below. Either softening the elastic support material or increasing the weight of the vibration-generating machinery allows for reducing f0. (See Figure D)
k:Spring constant of elastic support material (N/m)
m:Weight of vibration-generating machinery (elastic support machinery) (kg)
Vibration control
Vibration damping (vibration isolation) is an effective approach to reducing vibration, but there may be no way to install vibration insulators in real usage conditions. In those situations, a technique called vibration control is harnessed to convert vibration energy into thermal energy, in turn suppressing vibration. Materials boasting a combination of damping properties and elasticity are called viscoelastic bodies, and the scale of damping properties regarding those bodies are expressed as a loss factor (tanδ). Materials with higher tanδ are considered to have better vibration control performance. (See Figure E)

Applications

Electronics & Industry

Products

Mounted Type
These simply designed insulators support the product and effectively isolate vibrations.
Product Configuration Load Range
θ Type Top / Bottom: Bolts Light
MN Type Top / Bottom: Bolts Middle
θ-TW Type Top / Bottom: Bolts Heavy
BG Type Top / Bottom: Bolts
with Spring
Light
SF Type Top: Bolt
Bottom:Plate with holes
Light ~ Middle
SF Type
(With Rubber Cover)
Top: Bolt
Bottom:Plate with holes
With rubber cover
Heavy

Product Details

Product Details

Bush-Type
These anti-vibration bushings are secured with screws.
Product Optimum Load(kg/at 4 points)
S 0.2~0.75
A-1/A-2 0.5~4
B-1/B-2 4~32

Product Details

Product Details

Sheet-Type
SN-Sheets are anti-vibration sheets that work by simply placing them under a product.
Product Optimum Load(kg/at 4 points)
SN-2(Yellow) 0.5~2
SN-5(Green) 2~5
SN-15(Orange) 5~15
SN-50(Blue) 15~50

Product Details

Product Details

UV Curing Gel (CIPD)
Our CIPD (Cured-In-Place-Damping) silicone anti-vibration material is sold as a liquid that is cured in place with UV light.
Product Complex Modulus:G*(10Hz/Pa)
UV Curing Gel(CIPD) 2,700~24,500

Product Details

Product Details

Shock Absorption Heat Dissipation Optical Bonding Water & Dust Proofing