Honeywell International Inc.

Other

James H Boyd

Dale Thomas Ruebsamen

Toren S Davis

Joseph E Vecera

Timothy Hindle

David R Koehler

Brett McMickell

Stephen R Jones

Dale T Ruebsamen

Brett M Mcmickell

A vibration isolating system is disclosed. The vibration isolating system comprises a passive mechanical system comprising a damping assembly, a first resilient member coupled in series with the damping assembly, and a second resilient member coupled in parallel with the series combination of the damping assembly and the first resilient member. The vibration isolating system further comprises a support member coupled in series with the passive mechanical system, a viscoelastic mount coupled to the support member, and a motion limiter coupled to the support member such that the passive mechanical system transmits a force to the support member when the passive mechanical undergoes longitudinal displacement greater than a predetermined displacement.

Two stage vibration isolator

A tuned mass damper is provided for use with a structure that vibrates at a first axial surge mode and a second axial surge mode, when exposed to a predetermined frequency range. The tuned mass damper includes a housing, an endcap, two masses, and two springs. The first and second masses are disposed in a housing cavity. The first tuned mass damper spring is disposed in the cavity coupling the first mass and the endcap. The second tuned mass damper spring is disposed in the cavity coupling the first and second masses. The tuned mass damper has first and second resonant frequencies in the predetermined frequency range to damp the first and second axial surge modes, respectively. The second mass resonates at an amplitude that is greater than an amplitude at which the first mass resonates, when the two masses are subjected to the second axial surge mode.

Tuned mass dampers and vibration isolation apparatus

A vibration isolation apparatus is provided that includes a main spring and a tuned mass damper. The main spring has a first end and a second end, and is configured to resonate when vibrated within a predetermined frequency range with a first axial surge mode having a magnitude. The tuned mass damper is coupled to the main spring at a first axial position located substantially equidistantly between the main spring first end and the main spring second end and is configured to reduce the first axial surge mode magnitude at least 50% when the main spring is vibrated within the predetermined frequency range. Methods of manufacturing the vibration isolation apparatus are also provided.

Vibration isolation apparatus and methods of manufacture

Fluid amplifiers and vibration damping and isolation systems are provided. A fluid amplifier includes a housing assembly, a piezo-electric element, two amplification stages, and a rod. The piezo-electric element is disposed within the housing assembly and is capable of being energized to lengthen axially to provide an input stroke at an initial magnitude. The first amplification stage is disposed within the housing assembly adjacent to the piezo-electric element and is adapted to amplify the input stroke from the piezo-electric element to a first magnitude. The second amplification stage is disposed in series with the first amplification stage and is adapted to increase the input stroke from the first magnitude to a second magnitude that is greater than the first magnitude to yield an amplified input stroke. The rod extends through the second amplification stage and is coupled thereto to transmit the amplified input stroke having the second magnitude.

Fluid amplifiers and vibration damping and isolation systems

Apparatus are provided for a damping system. The system includes a housing having an inner surface defining a passage therethrough, a first bellows disposed within the passage, the first bellows having an outer surface and spaced apart from the housing inner surface to define a first chamber having a volume, a second bellows disposed within the passage, the second bellows having an outer surface and spaced apart from the housing inner surface to define a second chamber having a volume, a restrictive flow passage in fluid communication with the first and second chambers, fluid disposed within the first chamber, the second chamber, and the restrictive flow passage, and a piston coupled to the second bellows and disposed at least partially within the restrictive flow passage, the piston configured to selectively receive a force to thereby move the piston through the housing passage.

Isolator using externally pressurized sealing bellows

An isolation strut and strut support system for supporting a load and capable of operating in a first mode and a second mode comprising an air suspension spring connected to a load bearing shaft; a hydraulic damping element having a first chamber and a second chamber separated by a piston connected to the load bearing shaft. A hydraulic line has a valve therein, one end of the hydraulic line connected to the first chamber and the other end of the hydraulic line connected to the second chamber. A vibration detector is coupled to the valve for actuating the valve upon the occurrence of vibration of an abnormal quality; whereby, in a first mode of operation the load is rigidly attached to the ground via a load path through the hydraulic damping element and in a second mode the load is isolated by the air suspension spring and damped by the hydraulic damping element.

Multifunction vibration isolation strut

A tuned mass damper includes a container having first and second inside wall portions, and a proof mass disposed within the container. Multiple pairs of oppositely directed bellows containing damping fluid are connected between the wall portions and the mass to permit motion of the mass along primary axes. A spring is connected in series with each pair of bellows. The spring has a diameter substantially less than a diameter of the corresponding pair of bellows so that the spring and bellows allow translational movement of the mass about an axis other than the primary axes.

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Phoenix, AZ, United States of America

James H Boyd