Results 241 to 250 of about 129,714 (280)
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1993
AbstractThis chapter discusses vibration isolation of STM and AFM. First, the basic concepts of vibration isolation are illustrated by a one-dimensional system using elementary mechanics. The source of vibration, the environmental vibration, its characteristics, and methods of measurement are presented.
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AbstractThis chapter discusses vibration isolation of STM and AFM. First, the basic concepts of vibration isolation are illustrated by a one-dimensional system using elementary mechanics. The source of vibration, the environmental vibration, its characteristics, and methods of measurement are presented.
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Physics Today, 1965
We are going to describe principles and devices that are useful in determining how to isolate equipment from disturbing vibrations. Perhaps the only way that we can truly isolate an item of equipment is to place it in a satellite that contains no internal energy sources and to have it travel in interstellar space.
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We are going to describe principles and devices that are useful in determining how to isolate equipment from disturbing vibrations. Perhaps the only way that we can truly isolate an item of equipment is to place it in a satellite that contains no internal energy sources and to have it travel in interstellar space.
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Vibration Isolation and Chaotic Vibration
Volume 5: 19th Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C, 2003Taking single degree of freedom vibration isolation system under simple harmonic excitation as an example, and considering the energy, the vibration isolation performance in different conditions was studied theoretically and numerically. The results shows that when the simple harmonic excitation import energy is definite, the vibration isolation ...
Rong-Jun Jiang, Shi-Jian Zhu
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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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