Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
Book Description
The Microgravity Isolation Mount: A Linearized State-Space Model a la Newton and Kane
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 40
Book Description
The Microgravity Isolation Mount
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781721021659
Category :
Languages : en
Pages : 38
Book Description
Vibration acceleration levels on large space platforms exceed the requirements of many space experiments. The Microgravity Vibration Isolation Mount (MIM) was built by the Canadian Space Agency to attenuate these disturbances to acceptable levels, and has been operational on the Russian Space Station Mir since May 1996. It has demonstrated good isolation performance and has supported several materials science experiments. The MIM uses Lorentz (voice-coil) magnetic actuators to levitate and isolate payloads at the individual experiment/sub-experiment (versus rack) level. Payload acceleration, relative position, and relative orientation (Euler-parameter) measurements are fed to a state-space controller. The controller, in turn, determines the actuator currents needed for effective experiment isolation. This paper presents the development of an algebraic, state-space model of the MIM, in a form suitable for optimal controller design. The equations are first derived using Newton's Second Law directly; then a second derivation (i.e., validation) of the same equations is provided, using Kane's approach.Hampton, R. David and Tryggvason, Bjarni V. and DeCarufel, Jean and Townsend, Miles A. and Wagar, William O.Glenn Research CenterVIBRATION ISOLATORS; MATHEMATICAL MODELS; VIBRATION DAMPING; STRUCTURAL DESIGN; CONTROLLERS; STRUCTURAL VIBRATION; SPACECRAFT COMPONENTS; SPACEBORNE EXPERIMENTS; MICROGRAVITY; SPACE STATIONS; ACTUATORS; SUSPENSION SYSTEMS (VEHICLES); FEEDBACK CONTROL; SPACECRAFT EQUIPMENT
Publisher: Createspace Independent Publishing Platform
ISBN: 9781721021659
Category :
Languages : en
Pages : 38
Book Description
Vibration acceleration levels on large space platforms exceed the requirements of many space experiments. The Microgravity Vibration Isolation Mount (MIM) was built by the Canadian Space Agency to attenuate these disturbances to acceptable levels, and has been operational on the Russian Space Station Mir since May 1996. It has demonstrated good isolation performance and has supported several materials science experiments. The MIM uses Lorentz (voice-coil) magnetic actuators to levitate and isolate payloads at the individual experiment/sub-experiment (versus rack) level. Payload acceleration, relative position, and relative orientation (Euler-parameter) measurements are fed to a state-space controller. The controller, in turn, determines the actuator currents needed for effective experiment isolation. This paper presents the development of an algebraic, state-space model of the MIM, in a form suitable for optimal controller design. The equations are first derived using Newton's Second Law directly; then a second derivation (i.e., validation) of the same equations is provided, using Kane's approach.Hampton, R. David and Tryggvason, Bjarni V. and DeCarufel, Jean and Townsend, Miles A. and Wagar, William O.Glenn Research CenterVIBRATION ISOLATORS; MATHEMATICAL MODELS; VIBRATION DAMPING; STRUCTURAL DESIGN; CONTROLLERS; STRUCTURAL VIBRATION; SPACECRAFT COMPONENTS; SPACEBORNE EXPERIMENTS; MICROGRAVITY; SPACE STATIONS; ACTUATORS; SUSPENSION SYSTEMS (VEHICLES); FEEDBACK CONTROL; SPACECRAFT EQUIPMENT
International Workshop on Vibration Isolation Technology for Microgravity Science Applications
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 424
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 424
Book Description
A New Approach to Active Vibration Isolation for Microgravity Space Experiments
Author: Alok Sinha
Publisher:
ISBN:
Category : Reduced gravity experiments
Languages : en
Pages : 14
Book Description
Publisher:
ISBN:
Category : Reduced gravity experiments
Languages : en
Pages : 14
Book Description
Scientific and Technical Aerospace Reports
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704
Book Description
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704
Book Description
The 31st Aerospace Mechanisms Symposium
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 408
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 408
Book Description
The Story of the Space Shuttle
Author: David M. Harland
Publisher: Springer Science & Business Media
ISBN: 9781852337933
Category : Science
Languages : en
Pages : 476
Book Description
In spite of the Challenger and Columbia disasters, the US Space Shuttle, which entered service in 1981, remains the most successful spacecraft ever developed. Conceived and designed as a reusable spacecraft to provide cheap access to low Earth orbit, and to supersede expendable launch vehicles, serving as the National Space Transportation System, it now coexists with a new range of commercial rockets. David Harland’s definitive work on the Space Shuttle explains the scientific contribution the Space Shuttle has made to the international space programme, detailing missions to Mir, Hubble and more recently its role in the assembly of the International Space Station. This substantial revision to existing chapters and extension of ‘The Space Shuttle’, following the loss of Columbia, will include a comprehensive account of the run-up to resumption of operations and conclude with a chapter beyond the Shuttle, looking at possible future concepts for a partly or totally reusable space vehicle which are being considered to replace the Shuttle.
Publisher: Springer Science & Business Media
ISBN: 9781852337933
Category : Science
Languages : en
Pages : 476
Book Description
In spite of the Challenger and Columbia disasters, the US Space Shuttle, which entered service in 1981, remains the most successful spacecraft ever developed. Conceived and designed as a reusable spacecraft to provide cheap access to low Earth orbit, and to supersede expendable launch vehicles, serving as the National Space Transportation System, it now coexists with a new range of commercial rockets. David Harland’s definitive work on the Space Shuttle explains the scientific contribution the Space Shuttle has made to the international space programme, detailing missions to Mir, Hubble and more recently its role in the assembly of the International Space Station. This substantial revision to existing chapters and extension of ‘The Space Shuttle’, following the loss of Columbia, will include a comprehensive account of the run-up to resumption of operations and conclude with a chapter beyond the Shuttle, looking at possible future concepts for a partly or totally reusable space vehicle which are being considered to replace the Shuttle.
Space Station Systems
Author:
Publisher:
ISBN:
Category : Space stations
Languages : en
Pages : 606
Book Description
Publisher:
ISBN:
Category : Space stations
Languages : en
Pages : 606
Book Description
Departments of Veterans Affairs and Housing and Urban Development, and Independent Agencies Appropriations for 1998
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on VA, HUD, and Independent Agencies
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 680
Book Description
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 680
Book Description
Departments of Veterans Affairs and Housing and Urban Development, and Independent Agencies Appropriations for 1999
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on VA, HUD, and Independent Agencies
Publisher:
ISBN:
Category : Political Science
Languages : en
Pages : 986
Book Description
Publisher:
ISBN:
Category : Political Science
Languages : en
Pages : 986
Book Description