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
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
THE MICROGRAVITY ISOLATION MOUNT: A LINEARIZED STATE-SPACE MODEL A LA NEWTON AND KANE... NASA/TM-1999-208906... MAR. 26, 1999
Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Glovebox Integrated Microgravity Isolation Technology (G-Limit): A Linearized State-Space Model
Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
ISBN: 9781723847646
Category : Science
Languages : en
Pages : 46
Book Description
Vibration acceleration levels on large space platforms exceed the requirements of many space experiments. The Glovebox Integrated Microgravity Isolation Technology (g-LIMIT) is being built by the NASA Marshall Space Flight Center to attenuate these disturbances to acceptable levels. G-LIMIT 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 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 g-LIMIT, in a form suitable for optimal controller design. The equations are first derived using Newton's Second Law directly, then simplified to a linear form for the purpose of controller design.Hampton, R. David and Calhoun, Philip C. and Whorton, Mark S.Langley Research Center; Marshall Space Flight CenterMICROGRAVITY; VIBRATION; ISOLATION; TECHNOLOGY ASSESSMENT; MATHEMATICAL MODELS; SPACE PLATFORMS; SPACEBORNE EXPERIMENTS; PAYLOADS; CONTROLLERS; ACTUATORS
Publisher: Independently Published
ISBN: 9781723847646
Category : Science
Languages : en
Pages : 46
Book Description
Vibration acceleration levels on large space platforms exceed the requirements of many space experiments. The Glovebox Integrated Microgravity Isolation Technology (g-LIMIT) is being built by the NASA Marshall Space Flight Center to attenuate these disturbances to acceptable levels. G-LIMIT 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 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 g-LIMIT, in a form suitable for optimal controller design. The equations are first derived using Newton's Second Law directly, then simplified to a linear form for the purpose of controller design.Hampton, R. David and Calhoun, Philip C. and Whorton, Mark S.Langley Research Center; Marshall Space Flight CenterMICROGRAVITY; VIBRATION; ISOLATION; TECHNOLOGY ASSESSMENT; MATHEMATICAL MODELS; SPACE PLATFORMS; SPACEBORNE EXPERIMENTS; PAYLOADS; CONTROLLERS; ACTUATORS
A Kane's Dynamics Model for the Active Rack Isolation System
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781726143790
Category :
Languages : en
Pages : 50
Book Description
Many microgravity space science experiments require vibratory acceleration levels unachievable without active isolation. The Boeing Corporation's Active Rack Isolation System (ARIS) employs a novel combination of magnetic actuation and mechanical linkages to address these isolation requirements on the International Space Station (ISS). ARIS provides isolation at the rack (International Standard Payload Rack (ISPR)) level. Effective model-based vibration isolation requires: (1) an appropriate isolation device, (2) an adequate dynamic (i.e., mathematical) model of that isolator, and (3) a suitable, corresponding controller. ARIS provides the ISS response to the first requirement. This paper presents one response to the second, in a state space framework intended to facilitate an optimal-controls approach to the third. The authors use "Kane's Dynamics" to develop a state-space, analytical (algebraic) set of linearized equations of motion for ARIS.Hampton, R. D. and Beech, G. S. and Rao, N. N. S. and Rupert, J. K. and Kim, Y. K.Marshall Space Flight CenterMATHEMATICAL MODELS; MICROGRAVITY; VIBRATION ISOLATORS; SPACEBORNE EXPERIMENTS; ISOLATION; VIBRATION; PAYLOADS; LINKAGES; ISOLATORS; INTERNATIONAL SPACE STATION; EQUATIONS OF MOTION; CONTROLLERS; ALGEBRA; ADVANCED RANGE INSTRUMENTATION SHIP...
Publisher: Createspace Independent Publishing Platform
ISBN: 9781726143790
Category :
Languages : en
Pages : 50
Book Description
Many microgravity space science experiments require vibratory acceleration levels unachievable without active isolation. The Boeing Corporation's Active Rack Isolation System (ARIS) employs a novel combination of magnetic actuation and mechanical linkages to address these isolation requirements on the International Space Station (ISS). ARIS provides isolation at the rack (International Standard Payload Rack (ISPR)) level. Effective model-based vibration isolation requires: (1) an appropriate isolation device, (2) an adequate dynamic (i.e., mathematical) model of that isolator, and (3) a suitable, corresponding controller. ARIS provides the ISS response to the first requirement. This paper presents one response to the second, in a state space framework intended to facilitate an optimal-controls approach to the third. The authors use "Kane's Dynamics" to develop a state-space, analytical (algebraic) set of linearized equations of motion for ARIS.Hampton, R. D. and Beech, G. S. and Rao, N. N. S. and Rupert, J. K. and Kim, Y. K.Marshall Space Flight CenterMATHEMATICAL MODELS; MICROGRAVITY; VIBRATION ISOLATORS; SPACEBORNE EXPERIMENTS; ISOLATION; VIBRATION; PAYLOADS; LINKAGES; ISOLATORS; INTERNATIONAL SPACE STATION; EQUATIONS OF MOTION; CONTROLLERS; ALGEBRA; ADVANCED RANGE INSTRUMENTATION SHIP...
The Microgravity Vibration Isolation Mount: A Dynamic Model for Optimal Controller Design
Author: National Aeronautics and Space Adm Nasa
Publisher: Independently Published
ISBN: 9781726811477
Category : Science
Languages : en
Pages : 26
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. Hampton, R. David and Tryggvason, Bjarni V. and DeCarufel, Jean and Townsend, Miles A. and Wagar, William O. Glenn Research Center RTOP 963-60-0C
Publisher: Independently Published
ISBN: 9781726811477
Category : Science
Languages : en
Pages : 26
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. Hampton, R. David and Tryggvason, Bjarni V. and DeCarufel, Jean and Townsend, Miles A. and Wagar, William O. Glenn Research Center RTOP 963-60-0C
Psychology of Space Exploration: Contemporary Research in Historical Perspective
Author: Douglas A. Vakoch
Publisher: Government Printing Office
ISBN: 0160897432
Category : Technology & Engineering
Languages : en
Pages : 268
Book Description
Through essays on topics including survival in extreme environments and the multicultural dimensions of exploration, readers will gain an understanding of the psychological challenges that have faced the space program since its earliest days. An engaging read for those interested in space, history, and psychology alike, this is a highly relevant read as we stand poised on the edge of a new era of spaceflight. Each essay also explicitly addresses the history of the psychology of space exploration.
Publisher: Government Printing Office
ISBN: 0160897432
Category : Technology & Engineering
Languages : en
Pages : 268
Book Description
Through essays on topics including survival in extreme environments and the multicultural dimensions of exploration, readers will gain an understanding of the psychological challenges that have faced the space program since its earliest days. An engaging read for those interested in space, history, and psychology alike, this is a highly relevant read as we stand poised on the edge of a new era of spaceflight. Each essay also explicitly addresses the history of the psychology of space exploration.
Fifth International Symposium on Magnetic Suspension Technology
Author: Nelson J. Groom
Publisher:
ISBN:
Category : Actuators
Languages : en
Pages : 744
Book Description
Examines the state of technology of all areas of magnetic suspension and reviews recent developments in sensors, controls, superconducting magnet technology, and design/implementation practices.
Publisher:
ISBN:
Category : Actuators
Languages : en
Pages : 744
Book Description
Examines the state of technology of all areas of magnetic suspension and reviews recent developments in sensors, controls, superconducting magnet technology, and design/implementation practices.
Large Space Structures & Systems in the Space Station Era
Author:
Publisher:
ISBN:
Category : Large space structures (Astronautics)
Languages : en
Pages : 1042
Book Description
Publisher:
ISBN:
Category : Large space structures (Astronautics)
Languages : en
Pages : 1042
Book Description
First IAA Conference on Dynamics and Control of Space Systems 2012
Author: Anna D. Guerman
Publisher: Univelt
ISBN: 9780877035879
Category : Technology & Engineering
Languages : en
Pages : 1728
Book Description
Publisher: Univelt
ISBN: 9780877035879
Category : Technology & Engineering
Languages : en
Pages : 1728
Book Description