lock-up devices in the form of hydraulic snubbers; tuned mass dampers for protection of large structures subject to seismic, wind or pedestrian effects; hydraulic shock absorbers for machines; hydraulic dampers being parts of machines; hydraulic bumpers being parts of machines; shock absorbers for machines, namely, shock isolators, vibration isolators, and hydraulic shock absorbers; hydropneumatic springs being parts of machines; machined springs being parts of machines; fluid viscous dampers being parts of machines seismic protection devices, namely, fluid viscous dampers
lock-up devices in the form of hydraulic snubbers; tuned mass dampers for protection of large structures subject to seismic, wind or pedestrian effects; hydraulic shock absorbers for machines; hydraulic dampers being parts of machines; hydraulic bumpers being parts of machines; shock absorbers for machines, namely, shock isolators, vibration isolators, and hydraulic shock absorbers; hydropneumatic springs being parts of machines; machined springs being parts of machines; fluid viscous dampers being parts of machines seismic protection devices, namely, fluid viscous dampers
An improved shock isolating mounting comprising at least three substantially U-shaped leaf spring members, each leaf spring member comprising at least two leafs arranged to define a space therebetween. In one arrangement, the respective at least three substantially U-shaped leaf spring members are arranged in an array having a substantially equal angular spacing between adjacent spring members.
F16M 7/00 - FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS - Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
F16F 3/02 - Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
F16F 15/08 - 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 system using elastic means with rubber springs
F16F 3/12 - Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction the steel spring being in contact with the rubber spring, e.g. being embedded in it
F16F 1/40 - Springs made of material having high internal friction consisting of a stack of similar elements separated by non-elastic intermediate layers
F16F 1/42 - Springs made of material having high internal friction characterised by the mode of stressing
B60P 1/64 - Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading the load supporting or containing element being readily removable
An improved shock isolating mounting comprising at least three substantially U-shaped leaf spring members, each leaf spring member comprising at least two leafs arranged to define a space therebetween. In one arrangement, the respective at least three substantially U-shaped leaf spring members are arranged in an array having a substantially equal angular spacing between adjacent spring members.
F16F 3/02 - Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
F16F 15/08 - 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 system using elastic means with rubber springs
F16F 3/12 - Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction the steel spring being in contact with the rubber spring, e.g. being embedded in it
F16F 1/40 - Springs made of material having high internal friction consisting of a stack of similar elements separated by non-elastic intermediate layers
F16F 1/42 - Springs made of material having high internal friction characterised by the mode of stressing
B60P 1/64 - Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading the load supporting or containing element being readily removable
F16F 1/20 - Leaf springs with layers, e.g. anti-friction layers, or with rollers between the leaves
F16F 1/30 - Attachments or mountings comprising intermediate pieces made of rubber or similar elastic material
F16M 5/00 - Engine beds, i.e. means for supporting engines or machines on foundations
F16M 7/00 - FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS - Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
The invention provides for a method, system and apparatus for resisting and restraining potentially destructive movement within a building structure while introducing little or no obstruction with respect to how a building structure is designed and how it is intended to function.
E04H 9/02 - Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
E04B 1/98 - Protection against other undesired influences or dangers against mechanical destruction, e.g. by air-raids
8.
Motion damping system designed for reducing obstruction within open spaces
The invention provides for a method, system and apparatus for resisting and restraining potentially destructive movement within a building structure while introducing little or no obstruction with respect to how a building structure is designed and how it is intended to function.
E04H 9/02 - Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK (USA)
TAYLOR DEVICES, INC. (USA)
Inventor
Sarlis, Apostolos A.
Constantinou, Michael C.
Lee, David A.
Reinhorn, Andrei M.
Taylor, Douglas P.
Abstract
Negative stiffness systems and methods for seismic protection of a structure is described. A system can include a negative stiffness device having a first linkage pivotably connected to an anchor frame at a first pivot point and pivotably connected the movement frame at a second pivot point. The negative stiffness device can include a spring having a first end operably coupled to the anchor frame and a second end operably coupled to a movement frame. In a rest state, the spring can be compressed to exert a preload force to the first linkage and the anchor frame and not displace the first linkage and the movement frame. In an engaged state, the spring can be configured to apply a force to the first linkage such that the movement frame is displaced in a same lateral direction of a seismic load. The spring force can be amplified by the first linkage.
E04B 1/98 - Protection against other undesired influences or dangers against mechanical destruction, e.g. by air-raids
E04H 9/02 - Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
The Research Foundation for The State University of New York (USA)
William Marsh Rice University (USA)
Taylor Devices, Inc. (USA)
Inventor
Constantinou, Michael C.
Reinhorn, Andrei M.
Sarlis, Apostolos A.
Taylor, Douglas
Lee, David A.
Nagarajaiah, Satish
Pasala, Dharma Theja R.
Abstract
A negative stiffness device and method for seismic protection of a structure is described. In one embodiment, the device has an anchor frame and a movement frame laterally translatable relative to the anchor frame. The anchor frame and movement frame have respective extension portions. A linkage is pivotably connected to the extension portion of the anchor frame. A compressed spring has a first end is attached to the extension portion of the movement frame and a second end attached to the linkage. The compressed spring has a spring force. In a rest state, the compressed spring does not apply a lateral force to the movement frame. In an engaged state, the compressed spring is configured to apply a lateral force to displace the movement frame in a lateral direction of a seismic load. The spring force is amplified by the linkage when the movement frame is laterally displaced to an amplification point.
E04H 9/02 - Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
E04B 1/98 - Protection against other undesired influences or dangers against mechanical destruction, e.g. by air-raids
F16F 15/00 - Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
In order to stop a moving vehicle without injury to occupants, a vehicle barrier is provided having a pair of platforms disposed on opposite sides of a roadway, and a capture net extending across the roadway between the platforms. Each platform has a rotatably mounted spool attached to a different end of the net, and a dual acting extension-compression shock absorber pivotally mounted to the spool, such that when the force or energy of an impacting vehicle on the net is applied to the shock absorbers, via rotation of the spools. Rotation of spools operate the shock absorbers in compression, and if needed, in extension. In railroad crossing application, two of the vehicle barriers are provided on either side of the railroad tracks to prevent vehicles from crossing the railroad tracks.
E01F 15/00 - Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
In order to stop a moving vehicle without injury to occupants, a vehicle barrier is provided having a pair of platforms disposed on opposite sides of a roadway, and a capture net extending across the roadway between the platforms. Each platform has a rotatably mounted spool attached to a different end of the net, and a dual acting extension-compression shock absorber pivotally mounted to the spool, such that when the force or energy of an impacting vehicle on the net is applied to the shock absorbers, via rotation of the spools. Rotation of spools operate the shock absorbers in compression, and if needed, in extension. In railroad crossing application, two of the vehicle barriers are provided on either side of the railroad tracks to prevent vehicles from crossing the railroad tracks.
E01F 15/00 - Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
