wire rope isolators damping manufacturer

Look to Enidine for high performance Wire Rope Isolators and Compact Wire Rope Isolators. The wire rope isolators have stainless steel cable and RoHS compliant aluminum retaining bars, which provides excellent vibration isolation. The isolators are corrosion resistant, which makes them environmentally stable and high-performance in a variety of applications. The isolators are completely unaffected by oil, chemicals, abrasives, ozone, and temperature extremes.

The compact wire rope isolator is smaller than a traditional wire rope and can absorb shock and vibration in small spaces. Single point mounting offers flexibility for integration into existing products.

Both compact wire rope isolators and wire rope isolators can be used on galley components where motors and fans produce vibrations onto surrounding structures. They can also be used to control vibration and thermal expansion.

VMC Group offers a variety of wire rope isolators that resolve shock and vibration issues in virtually any application. By selecting wire rope with the proper characteristics - wire diameter, number of strands, cable length, cable twist or lay, and the number of cables per section, we have created isolators that provide superior equipment protection. Ideally, passive isolation systems require no maintenance, use little space and keep functioning under varying temperatures and in corrosive environments.

As an elastic element, wire rope isolators will afford attenuation of vibration disturbances in much the same manner as they attenuate shock inputs. Wire rope isolators provide inherent damping by virtue of relative motion between wire strands. This damping limits vibration response peaks and limits responses to start-up and shut-down transients.

Isolators must also attenuate shock with minimum dynamic travel. A design that buckles under heavy shock loads without bottoming or permanent deformation provides the large deflection needed to bring the impacts within acceptable limits. When shock load is applied, the isolators soften and deform. This displacement reduces the acceleration level, through the controlled buckling of the wire rope loops.

This wire rope design handles both shock and vibration. In addition, three-plane, all-axes isolation permits installation in any attitude - vertically, horizontally or laterally.

Welcome to Vibro/Dynamics, where we will find effective and excellent solutions for shock and vibration problems. We offer you a great collection of wire rope isolators, constructed of stranded steel cable and contained between metal bars. The isolators’ design is chosen carefully to maximize the quality performance starting with the flexing of the cable loops that function as a spring, and the friction between the cable wires and strands that provides damping. Wire rope isolates are ideal for combined shock and vibration thanks to their large multidirectional deflection capabilities and high non-linear damping ratios. Moreover, our products can last a lifetime with quality performance and mechanism protection.

Isolation Dynamics Corp. offers the very best vibration engineering solutions like our mechanically fastened wire rope isolators and isolation assemblies for a variety of applications – including architectural foundations, oil pumps, compressors, and rugged naval electronics enclosures. Learn more about our IDC isolators below!

To ensure safe and continuous operation, or for instance flawless and safe transport of (highly) sensitive equipment, adequate shock and vibrationprotection is essential. The adequate level of protection is typicallypredominated by combining the appropriate shock mounts, thoroughcalculation and understanding of the application. The advantage of a wire rope isolators (WRI)lies in its ability to combine a high levelof isolation while taking up relatively little space. WRI are captive by theirconstruction and may, for this reason, be loaded in any direction withoutthe risk of malfunctioning. WRI are not subject to aging due to externalfactors such as oil, saltwater, chemicals, and heat or cold. Mostapplications of WRI can be found in situations where equipment needs tobe mounted against shocks or vibration, but where sound isolation is ofminor importance.

Typically, protection from shock and absorption of vibration is accomplished through the combination of a resilient element (metal mesh, an elastomer, a steel spring, etc.) and a metallic supporting frame. However, the helical isolator, also known as a helical mount or a cable mount, provides a higher level of isolation from shock and vibration than any other type of isolation device. Helical mounts provide a coulomb damping of 15-17% of critical (C/Cc).

What makes John Evans’ isolators so effective?Our helical vibration isolators (also referred to as spring vibration isolators) are made of aircraft quality stainless steel cable, wound into metal retaining bars prepared for surface mounting.

The wire rope (ranging in diameter from 1/16” to 1”+) and its helix configuration provide the specific resilience required to cushion fragile loads as small as a few pounds or substantial loads of many thousands of pounds, and absorb vibration through a wide frequency spectrum.

AAC offers a wide variety of cable isolators that resolve shock and vibration issues in a wide range of applications. By selecting wire rope with the proper characteristics - wire diameter, number of strands, cable length, cable twist or lay and the number of cables per section, we have created isolators that provide superior equipment protection. As an elastic element, wire rope isolators will afford attenuation of vibration disturbances in much the same manner as they attenuate shock inputs. Wire rope isolators provide inherent damping by virtue of relative motion between wire strands. This damping limits vibration response peaks and limits responses to start-up and shut-down transients.

Isotech offers a variety of wire rope isolators that resolve shock and vibration issues in virtually any application. By selecting wire rope with the proper characteristics – wire diameter, number of strands, cable length, cable twist or lay, and the number of cables per section, we have created wire rope isolators that provide superior equipment protection. Ideally, passive isolation systems require no maintenance, use little space, and keep functioning under varying temperatures and in corrosive environments.

Also in our range are wire rope isolators made from stainless steel. These are generally used for isolating vibrations and shock absorption, where axial holding force, resistance to compression, and shear force is required. Our AVC rope isolators are available with four, six, or eight coils. These components are particularly suitable for use with HVAC, pumps, purification and desalination plants, instrumentation panels, and in the railway, naval, and military industries.

As with our AVM mounts, we are able to provide our AVC rope isolators with the following special executions on request:Vibration dampers with cable with AISI 304 stainless steel bars

Wire-rope isolator selection is a three-step process. First the designer defines the system into which the isolator is going — by supported load, number of isolators to support the load, and whether the application will see just compression or rolling. Then the engineer defines the excitation and natural system frequencies and calculates maximum isolator stiffness.

Vibrations damage machines and electronics, so designs often incorporate wire-rope isolators, air springs, or elastomers — but elastomers only attenuate noise and vibration levels. Wire rope isolators do this and attenuate shock too.

Standard wire-rope isolators from some manufacturers are made of stranded stainless-steel cable that threads through aluminum-alloy retaining bars. In some cases, the split bars clamp onto the cables. Corrosion-resistant metal construction gives the isolators a design unaffected by temperature extremes, ozone, chemicals, oils, and abrasives.

It’s expensive to keep equipment perfectly balanced, and it’s inefficient to add braces. But adding wire-rope isolators is cost effective — and done upfront, it protects machine welds and brackets from fatigue.

Part of some helical isolator designs is a patented crimp pattern. An array of mounting options and sizes exist with versions to meet commercial, industrial, and defense including MIL standards. The samples reviewed in the above video include both traditional bar and compact isolators — these square ones. One benefit to the compact versions is that they install with just a single point of attachment at each interface.

Options are through-hole, countersunk, and threaded bars for mounting. Its wire-rope isolators come in two-loop versions all the way to full loop numbers. Another option for high-fatigue applications is a “bellmouth” having mount bars with radii manufactured into the wire-rope hole edges. However, note that wire-rope isolators exhibit non-linear stiffness so small deflections (usually associated with vibration isolation) induce different spring rates than large shock deflections. Published values average vibration stiffness and shock-stiffness values for use in equations to predict system performance. Just remember that stiffness values are for full-loop versions — and reduced-loop versions have stiffnesses that are the unit’s standard stiffness times the ratio of actual loops to the standard number of full loops.

The reasonable conclusion from the previous results referring to the effect of directional arrangement of isolator systems was to investigate how on compression stiffness of wire rope isolator systems influences lateral shear accompanying to free compression. Lateral shear and rolling phenomena appearing during free compression of wire rope isolators were further analyzed experimentally. In source literature where wire rope isolator compression tests have been broad described, the shear phenomenon influence is often omitted due to the testing stand construction that features one-directional loading pass as in strength testing machines. Contrary to test conditions described in many studies, in this paper are assumed conditions of free compression, which referred rather to investigate of combined stress states.

The aim of further investigations was to determine static and dynamic characteristics of two configuration, namely “parallel” and “serial”, each consisting of two isolators. It was assumed that Y axis of coordinates is parallel to the isolators of the central axes, and Z axis is perpendicular to the surfaces of the upper and the lower plates as shown in Figure 8.

Figure 9 presents changes of the upper plate lateral displacements (along Y axis) perpendicular to the vertical loading direction Z during cyclic down and up 5 kg load tests carried out on “parallel” configuration of two wire rope isolators. Similar characteristics were obtained for the second lateral direction X, but the range of displacement changes was less than those for Y direction. It was additionally noticed that vertical, symmetry axis of the upper plate was subjected to a small angle deviation what can cause instability of the whole system in extreme case. Dangerous of loss of stability is greater for “serial” than for “parallel” configuration.

Figure 10 shows a comparison of displacements in vertical Z direction for two different configurations. The upper plate of the stand was loaded by masses in the following order: 5.88, 2.27, 1.35, 1, 0.94, 0.76, 0.74, and 0.49 kg. It can be noticed that at “serial” configuration, a set of isolators increasing the vertical displacement is higher than those at “parallel” configuration. In addition, in case of “serial” configuration, after adding the mass of 0.94 kg, the loss of stability occurred.

Only “parallel” configuration of two isolators was further considered. There were determined hysteresis loops to identify average static stiffness characteristics similarly as before for “star” and “triangle” configurations but previously consisting of three isolators. The main reason for authors was looking for an answer for a question if it would be correct to apply additivity theorem to static stiffness measured in vertical direction despite identified lateral deflection influences. An exemplary hysteresis loop obtained in quasi-static successive uploading and unloading process carried out on “parallel” configuration of two isolators is presented in Figure 11. The identified average static stiffness characteristic was evaluated using LSQ method.

In engineering practice, it is required to compare static stiffness characteristics made for different configurations and different numbers of isolators in the same chart, considering the number of supporting isolators under the assumption that additivity property is acceptable. It was done here, and the result shown in Figure 12 is a sort of proof that such assumption was correct in case of using wire rope isolators.

Enidine Defense designs and manufactures suspension systems and vibration isolation systems for the military and defense sectors. Our Defense products are specifically designed for military applications including HERM (High Energy Rope Mount) mounts for cabinet isolation, SIDAS (Shock Isolator Double Acting Spring), DAMSI (Double Acting Mechanical Shock Isolator) and wire rope isolators for commercial-off-the-shelf (COTS) electronics. Additional divisions also offer a variety of motion control products, such as Aerospace Controls, which offers solutions for today"s most demanding Aviation and Defense Applications.

Enidine developed large displacement SKID isolators to protect next generation missile systems. A special elastomer was developed (Enitemp IV) to provide excellent shock isolation under a wide range of environmental conditions. ITT Enidine Inc."s skid isola...

Enidine Inc. developed the HERM (High Energy Rope Mount) Isolator for NAVY cabinet isolation and rafted deck systems. They have successfully passed barge testing and reduced shock inputs to levels compatible with COTS equipment.

To isolate heavy loads against shipboard shock inputs, ITT Enidine Inc. developed the Double Acting Mechanical Shock Isolator (DAMSI). The DAMSI is a purely mechanical shock isolator featuring our patented friction spring damping element. A single DAMSI rep...

Small Vibration Mount offers Big Performance Use Enidine Compact Wire Rope Isolators for the best performance in vibration isolation and small vibration mount configurations. The compact design is smaller than most wire ropes and can provide both shock an...