Dynamic Coupling and Control Response Effects on Spacecraft Handling Qualities During Docking

Mueller, Eric R.; Bilimoria, Karl D.; Frost, Chad

doi:10.2514/1.41924

Cited by 15 publications

(12 citation statements)

References 13 publications

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“…One predominate handling qualities factor in proximity operations and docking is the rotational coupling of the vehicle due to translational inputs [17,18]. This effect is illustrated in Figure 2 using a simplistic example where the relationship between reaction control system (RCS) jet longitudinal location varies with respect to the vehicle center-of-mass (CM).…”

Section: Handling Qualities Influencesmentioning

confidence: 99%

“…Coupling effects may still be apparent as the vehicle slices through the selected attitude hold deadbands [18,19].…”

Section: Three Degree-of-freedom (3 Dof) Control Hqsmentioning

confidence: 99%

“…The initial condition on a +V-bar docking approach to the International Space Station (ISS) was offset by 2.5 ft from the docking axis [17,18]. This offset required the evaluation pilot to laterally and vertically reacquire the docking axis.…”

Section: Piloting Taskmentioning

confidence: 99%

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Handling qualities implications for crewed spacecraft operations

Bailey

Jackson

Arthur

2012

2012 IEEE Aerospace Conference

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Abstract-Handling qualities embody those qualities or characteristics of an aircraft that govern the ease and precision with which a pilot is able to perform the tasks required in support of an aircraft role. These same qualities are as critical, if not more so, in the operation of spacecraft.A research, development, test, and evaluation process was put into effect to identify, understand, and interpret the engineering and human factors principles which govern the pilot-vehicle dynamic system as they pertain to space exploration missions and tasks. Toward this objective, piloted simulations were conducted at the NASA Langley Research Center and Ames Research Center for earth-orbit proximity operations and docking and lunar landing.These works provide broad guidelines for the design of spacecraft to exhibit excellent handling characteristics. In particular, this work demonstrates how handling qualities include much more than just stability and control characteristics of a spacecraft or aircraft. Handling qualities are affected by all aspects of the "pilot-vehicle dynamic system," including the motion, visual and aural cues of the vehicle response as the pilot performs the required operation or task. A holistic approach to spacecraft design, including the use of manual control, automatic control, and pilot intervention/supervision is described. The handling qualities implications of design decisions are demonstrated using these pilot-in-the-loop evaluations of docking operations and lunar landings.

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Section: Handling Qualities Influencesmentioning

confidence: 99%

“…Coupling effects may still be apparent as the vehicle slices through the selected attitude hold deadbands [18,19].…”

Section: Three Degree-of-freedom (3 Dof) Control Hqsmentioning

confidence: 99%

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Handling qualities implications for crewed spacecraft operations

Bailey

Jackson

Arthur

2012

2012 IEEE Aerospace Conference

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“…A series of experiments in spacecraft handling qualities at NASA Langley Research Center, 2,3 in collaboration with NASA Ames Research Center, 4,5,6 were begun in 2007. The previous experience with piloted evaluations of the High-Speed Civil Transport and other conceptual vehicles motivated the authors to take advantage of newly emerging Web technologies to store, retrieve and analyze pilot opinions and task metrics in a user-friendly way.…”

Section: Motivationmentioning

confidence: 99%

HOPE: An On-Line Piloted Handling Qualities Experiment Data Book

Jackson

Proffitt²

2010

AIAA Atmospheric Flight Mechanics Conference

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“…3 In 2007, NASA began another effort to study spacecraft handling qualities in preparation for a new generation of piloted spacecraft intended to replace the Space Shuttle and travel beyond Earth orbit. [4][5][6][7][8][9][10][11] Although vehicle control during entry is usually done with an automated system, Apollo and current-day requirements (e.g. NASA's Human Rating Requirements, NPR 8705.2b) stipulate that pilots have the ability to manually control the vehicle's flight path and attitude in off-nominal situations.…”

Section: Introductionmentioning

confidence: 99%

Orion Capsule Handling Qualities for Atmospheric Entry

Tigges

Bihari²,

Stephens

et al. 2011

AIAA Guidance, Navigation, and Control Conference

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Two piloted simulations were conducted at NASA's Johnson Space Center using the Cooper-Harper scale to study the handling qualities of the Orion Command Module capsule during atmospheric entry flight. The simulations were conducted using high fidelity 6-DOF simulators for Lunar Return Skip Entry and International Space Station Return Direct Entry flight using bank angle steering commands generated by either the Primary (PredGuid) or Backup (PLM) guidance algorithms. For both evaluations, manual control of bank angle began after descending through Entry Interface into the atmosphere until drogue chutes deployment. Pilots were able to use defined bank management and reversal criteria to accurately track the bank angle commands, and stay within flight performance metrics of landing accuracy, g-loads, and propellant consumption, suggesting that the pilotability of Orion under manual control is both achievable and provides adequate trajectory performance with acceptable levels of pilot effort. Another significant result of these analyses is the applicability of flying a complex entry task under high speed entry flight conditions relevant to the next generation Multi Purpose Crew Vehicle return from Mars and Near Earth Objects.1 Aerospace Engineer, Advanced Mission Design Branch, Mail Stop EG5; michael.a.tigges@nasa.gov

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Dynamic Coupling and Control Response Effects on Spacecraft Handling Qualities During Docking

Cited by 15 publications

References 13 publications

Handling qualities implications for crewed spacecraft operations

Handling qualities implications for crewed spacecraft operations

HOPE: An On-Line Piloted Handling Qualities Experiment Data Book

Orion Capsule Handling Qualities for Atmospheric Entry

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