About Vibration Absorbers and Vibration Absorber Manufacturers
Including: Bushings, Rubber
Bumpers, Rubber Mounts, Shock
Absorbers, Vibration
Isolators & Vibration
Mounts.
Vibration absorbers consist of elastomeric pads, mounts,
bushings and bumpers that protect industrial equipment and machinery
components from the harmful and inefficient effects of vibration. Vibration
consists of a series of oscillations that move at a cyclic pace at varying
frequencies. Vibration may come from an external source or from an internal
source within the equipment. Internal vibration is often caused by an
imbalance between equipment components. Vibration absorbers isolate the
equipment to which they are attached, preventing the spread of vibrations
throughout the equipment components.
Some shock and vibration absorbers contain a hydraulic element that works
as a comprehensive dampening system and returns the mechanism back to
an unengaged position. Other vibration absorbers are nothing more than
rubber bumpers or engine mounts that are enclosed within the machinery
in need of vibration and shock isolation. The vibration created by neighboring
machines along a manufacturing process requires the absorption of even
the most minute movements. Unbridled vibration can lead to a variety
of problems, including equipment malfunction and inaccurate product manufacturing.
Because of the wide range of shock
absorbers used in industrial settings
and components, the vibration absorber manufacturers work along with
customers to meet specific demands. An example of product development
related to vibration absorbers is the harness protection line of products
that was developed for Bacou-Dalloz and their product line of shock
absorbers, harnesses, and vibration absorbers. Custom molded and designed
parts and services are often necessary
to meet customer needs, and most of the providers of shock and vibration
absorbers and equipment have these capabilities. Often working alongside
their customers, vibration absorber manufacturers facilitate this custom
process with a consultation and diagnosis period, which involves preliminary
testing of determinative factors, such as the lowest disturbing frequency
for a part or component and the percentage of vibration reduction desired.
Vibration
isolators provide vibration control to numerous machines and
equipment parts in almost every industry. Vibration isolating systems
are found in engines, conveyors, vehicles, motors, heaters, air conditioners,
ventilation systems, appliances and many other items. Vibration isolating
systems remain an effective way of combating equipment defects. Vibration
isolators are common because they are usually cost-effective, easy to
install and often have a long life. When considering vibration absorber
manufacturers, consider the weight and size of the equipment, the type
of elastomer best suited for the application, other forces such as shock
and noise that may affect the equipment, and substances like chemicals
and oils to which the isolator may be subjected.
Types of Vibration Absorbers
- offer
a favorable stroke-to-compressed-height ratio, when compared to air
cylinders, and can accept a wide variety of actuation media, such as
air, water, nitrogen or anti-freeze for use in a variety of vibration
isolation applications.
- are placed between moving parts to absorb vibration.
-
are driven by circular motion. The cam follower traces the surface of
the cam transmitting its motion to the required mechanism.
- are
absorption devices that use fluid to enact resistance. Once downward
force is no longer being applied, the plunger-like device remains in
position. Dashpots are used normally in small devices, such as instrumentation
and precision manufacturing machinery.
-
are vibration isolators placed between an engine and the structure that
supports the engine, in order to reduce the effects of vibration, noise
and shock encountered during engine operation.
-
achieve attenuation of both shock and vibration and are made entirely
of non-corrosive materials. Helical isolators are most commonly used
for vibration and shock absorption in such industrial and commercial
machinery as compressors, hammers, printing machines and other applications
in which shock isolation is important to the effective and efficient
running of the apparatus.
-
protect machines from vibrations emanating from within the equipment
itself, as well as from other pieces of equipment. Machinery mounts
are used on compressors, screw machines, pumps and generators.
-
are commonly used in the automotive/trucking industry to protect vehicles
and trailers through vibration and shock absorption.
- are rubber components that isolate the vibration from moving parts.
-
are vibration dampeners often placed between industrial equipment and
the surface upon which the equipment rests. Rubber pads may have a ribbed
pattern to prevent slippage.
- use various methods to dampen vibrations caused by sudden motion and mechanical shocks.
- are rubber mounts used to protect a variety of industrial
items, including engines, machinery and equipment components. Vibration
mounts effectively reduce or eliminate oscillation.
- are used to protect equipment by keeping the vibration of a component from spreading to the entire machine or work environment.
-
consist of a metal cable configured in sets of strands. Wire rope isolators
are used in applications in which exposure to chemicals, oils and high
or low temperatures is common.
Vibration Absorbers Terms
-
Amplitude is the maximum value of a repetitively oscillating quantity
(i.e. acceleration, displacement).
- The reduction of oscillatory
motion in a vibratory object through the loss of energy in the form of
heat during vibratory cycles. Vibration dampers increase the amount of
vibratory energy lost during an object's oscillatory motion, which
decreases the vibration of the object.
- An indication of
a vibration isolator's ability to provide vibration control. Deflection
refers to the amount that an elastomer, such as a rubber mount, moves
due to a force, such as vibration or shock.
- The movement
of an object from its initial placement. Vibration is a common cause of
displacement.
- A material, such
as rubber, that is capable of returning to its initial length after being
stretched at room temperature to at least twice its original length.
- The vibration
of an object due to an applied force.
- A measurement representing
the level of vibration to which an object can be subjected before sustaining
damage.
- The occurrence
of vibratory movement during an object's displacement without the
application of an external force.
- The repetition of
vibratory motion during a specified period of time.
- Also referred to as
"cycles per second," it is a measurement of vibratory motion
or frequency that occurs per second.
- The integral of force
over a time interval.
- The rate of change of
acceleration with time.
- The number
of cycles that an object freely vibrates during a given unit of time.
- Motion that
repeats itself at measurable intervals of time.
- An increase in the
vibratory motion of an object that occurs when an object's natural
frequency and the frequency of the force applied to an object are equivalent
to one another. This frequency point is termed the resonant frequency.
- A force to which an
object is subjected that disturbs the object's stability, causing
an imbalance of equilibrium. Shock is often isolated in conjunction with
vibration to stabilize an object's equilibrium.
- Steady
state vibration exists in a system, if the velocity is a continuous periodic
quantity.
- The amount
of vibration generated by an object that is transmitted to the object's
support structure.