Results 251 to 260 of about 11,920 (307)
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The Journal of the Acoustical Society of America, 1999
A tunable dual-axis live isolator (31) with a vertical single-axis isolator (33) and a horizontal single-axis isolator (35) with cruciform member (41) serving as pistons for both single-axis isolators (33-35). The isolator (31) is tuned by a sleeve (83) within the cruciform member (41) for varying the dimension of the tuning passage (75). The isolator (
Michael Reaugh Smith +1 more
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A tunable dual-axis live isolator (31) with a vertical single-axis isolator (33) and a horizontal single-axis isolator (35) with cruciform member (41) serving as pistons for both single-axis isolators (33-35). The isolator (31) is tuned by a sleeve (83) within the cruciform member (41) for varying the dimension of the tuning passage (75). The isolator (
Michael Reaugh Smith +1 more
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The Journal of the Acoustical Society of America, 1983
A vibration isolation system for a passenger carrying helicopter with which the crew seats in the cockpit area and the floor in the passenger area are decoupled from the airframe thereby isolating the seats and floor from the airframe vibrations. In addition, the fuel tanks of the helicopter are isolated from the airframe so that a force feedback from ...
Rene A. Desjardins +2 more
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A vibration isolation system for a passenger carrying helicopter with which the crew seats in the cockpit area and the floor in the passenger area are decoupled from the airframe thereby isolating the seats and floor from the airframe vibrations. In addition, the fuel tanks of the helicopter are isolated from the airframe so that a force feedback from ...
Rene A. Desjardins +2 more
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The Journal of the Acoustical Society of America, 2011
A vibration isolation system isolates a body from its surroundings with respect to vibrations. The vibration isolation system includes active isolator devices that isolate and damp the body in unstable directions. However, such active isolators may exert damping forces not only in the unstable direction, but simultaneously in other stable directions ...
Marcel Francois Heertjes +1 more
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A vibration isolation system isolates a body from its surroundings with respect to vibrations. The vibration isolation system includes active isolator devices that isolate and damp the body in unstable directions. However, such active isolators may exert damping forces not only in the unstable direction, but simultaneously in other stable directions ...
Marcel Francois Heertjes +1 more
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The Journal of the Acoustical Society of America, 1998
An improved version of vibration isolation systems using negative stiffness incorporates a payload and payload platform on just one 6-DOF isolator in a unique and innovatively compact configuration. The isolator includes a platform supported on an assembly of independently acting flexure mechanisms which are connected in serial fashion, tilt on top of ...
David L. Platus, Donald A. Durran
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An improved version of vibration isolation systems using negative stiffness incorporates a payload and payload platform on just one 6-DOF isolator in a unique and innovatively compact configuration. The isolator includes a platform supported on an assembly of independently acting flexure mechanisms which are connected in serial fashion, tilt on top of ...
David L. Platus, Donald A. Durran
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The Journal of the Acoustical Society of America, 2012
A vibration isolation device can more effectively restrain vibration in the horizontal direction rather than in the vertical direction with a simple construction. In addition, vibration of a frequency of a machine mode caused by an internal structure of the vibration isolation device is reduced with a simple construction.
Shigeo Emoto, Takahiro Tsuchiya
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A vibration isolation device can more effectively restrain vibration in the horizontal direction rather than in the vertical direction with a simple construction. In addition, vibration of a frequency of a machine mode caused by an internal structure of the vibration isolation device is reduced with a simple construction.
Shigeo Emoto, Takahiro Tsuchiya
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The Journal of the Acoustical Society of America, 1985
A laminated vibration isolation pad comprising first or top rigid layer of ultra-high molecular weight polyethylene material, a second layer of vulcanized elastomeric material with an additional third or bottom layer of spaced resilient vulcanized elastomeric projections.
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A laminated vibration isolation pad comprising first or top rigid layer of ultra-high molecular weight polyethylene material, a second layer of vulcanized elastomeric material with an additional third or bottom layer of spaced resilient vulcanized elastomeric projections.
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The Journal of the Acoustical Society of America, 1980
A vibration isolation system for a cover mountable on a vibratable engine includes a plurality of resilient grommets positioned about a plurality of stripper bolts which are inserted into the cover and through a resilient sealing gasket to threadedly secure the cover to the engine.
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A vibration isolation system for a cover mountable on a vibratable engine includes a plurality of resilient grommets positioned about a plurality of stripper bolts which are inserted into the cover and through a resilient sealing gasket to threadedly secure the cover to the engine.
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The Journal of the Acoustical Society of America, 1983
Harold E. Marquis, Nhiem D. Nguyen
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Harold E. Marquis, Nhiem D. Nguyen
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Omnidirectional vibration isolating
The Journal of the Acoustical Society of America, 1981In an air or gas spring having a metal cylinder with a rigid gas-tight closure at one end and a flexible convoluted diaphragm seal and piston at the other end, the piston has an inner floating member restrained vertically by hardened roller balls that ride in a hardened ball race and horizontally by elastomer spring material.
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The Journal of the Acoustical Society of America, 1986
A torsional vibration isolator coupling displaying particular utility in automotive vehicles powered by internal combustion engines of the diesel or otto type. An input torque shaft having undesirable torsional vibrations, such as a torque directly derived from an internal combustion engine, is coupled to an input torque disc.
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A torsional vibration isolator coupling displaying particular utility in automotive vehicles powered by internal combustion engines of the diesel or otto type. An input torque shaft having undesirable torsional vibrations, such as a torque directly derived from an internal combustion engine, is coupled to an input torque disc.
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