Magnetic Bearing Torsional Creep Apparatus
Magnetic bearing torsional creep apparatus design, operation and recoverable compliance measurement data
Plazek, D. J.↗
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Results for “compliance”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Resonant mode analysis of the Fitzgerald apparatus
Analysis of Fitzgerald apparatus for extraneous resonant modes, dynamic compliance, and mechanical impedance
Behrendt, D. R.↗
Pressure-diameter relations of capillaries and small blood vessels in frog lung.
Static pressure-diameter measurements on small pulmonary blood vessels of frogs, analyzing capillary septal area as function of intravascular pressures noting high compliance
Castle, B. L.↗
Instrument for measuring torsional creep and recovery Patent
Measuring shear-creep compliance of solid and liquid materials used in spacecraft components
Plazek, D. J.↗
Experimental analysis of the Fitzgerald apparatus
Experimental analysis of Fitzgerald dynamic compliance machine
Behrendt, D. R.↗
Characteristics of feed system instabilities
Development and verification of analytical model to predict cavitation compliance in turbopump designs
Vaage, R. D.↗
Muscle training and blood flow
Isotonic training effects on circulation for limb muscular strength characteristics, using peak blood flow and venous compliance measurements
Carlson, L. D.↗
Radiological Control Manual
Objectives of the manual are to (1) ensure compliance with requirements of AEC and governmental health agencies, (2) ensure against excessive and unnecessary exposure of personnel to harmful radiation, and (3) prevent contamination of equipment, materials, and environment with radioactive materials.
Noblin, J. W.↗
System Definition Phase and Acquisition Phase Project Plan for Small Astronomy Satellite SAS-D
This Project Plan for the Small Astronomy Satellite (SAS-D) is Goddard Space Flight Center's plan for accomplishing the project. It is issued in compliance with NASA Handbook NHB 7121.2 and NMI 7120.1, dated May 4, 1970, Subject: Approval and Implementation of Office of Space Science and Applications (OSSA) Research and Development (R&D) Projects. The Project Plan, as approved by GSFC executive management and NASA Headquarters, is the project manager's charter and defines his specific plan of action. System definition phase activities of the SAS-D Project will be a continuation of the analytical work that established the overall feasibility of the project. The system concept derived from that analytical work is defined in the Phase A (Mission Definition Phase) technical report. System definition phase activities will include detailed engineering analysis and preliminary breadboarding necessary to establish a single project approach from the feasible approaches. This document will be revised at the end of the system definition phase to provide greater detail on acquisition phase planning and to specify a specific system design.
Donald A Krueger↗
Liquid-filled transient pressure measuring systems: A method for determining frequency response
An equation is given and experimentally verified for computing the resonant frequency of liquid-filled transient pressure measuring systems. Resonant frequencies of 100 to 1000 Hz are typical of those systems tested. The effect of noncondensable gas bubbles on system response is described. A method for determining transducer volumetric compliance is presented. An example system is described and analyzed to demonstrate the use of the theory.
Anderson, R. C.↗
Space shuttle propulsion systems on-board checkout and monitoring system development study (extension). Volume 2: Guidelines for for incorporation of the onboard checkout and monitoring function on the space shuttle
Guidelines are presented for incorporation of the onboard checkout and monitoring function (OCMF) into the designs of the space shuttle propulsion systems. The guidelines consist of and identify supporting documentation; requirements for formulation, implementation, and integration of OCMF; associated compliance verification techniques and requirements; and OCMF terminology and nomenclature. The guidelines are directly applicable to the incorporation of OCMF into the design of space shuttle propulsion systems and the equipment with which the propulsion systems interface. The techniques and general approach, however, are also generally applicable to OCMF incorporation into the design of other space shuttle systems.
Source record↗
Design and control of remote manipulators
Results of investigations on vibrational modes of manipulators revealed: (1) any arbitrary manipulator may be analyzed for its small motion compliances; (2) a simulation of the Martin-Marietta shuttle boom with a 65,000 lb. payload attached, indicated three natural frequencies; and (3) simulations can be made of rigid limbs and flexible joints as well as for flexible limbs and locked joints and combinations thereof. Trajectories for arms were determined so that some integral criterion such as integral of kinetic energy or control torque magnitude is minimized over a motion of the arm. Experiments performed to evaluate various TV displays in conjunction with manipulator control modes showed that when mounted directly to the manipulator control arm and arranged to look approximately along the arm to the hand the operator could perform the task almost as quickly as when viewing the task directly.
Whitney, D. E.↗
Feasibility demonstration of a hyperfiltration technique to reclaim shower wastewater at elevated temperatures
A feasibility demonstration of a hyperfiltration technique to determine its capability to reclaim shower wastewater at elevated temperature was conducted. Approximately twenty (20) gallons of typical shower water were processed through a dynamically formed membrane at a temperature of 167 F. Chemical and bacterial analyses of the product water are presented which show compliance with all potable water requirements established for extended manned space missions. In addition, subsystem characteristics and capabilities are discussed.
Hester, J. C.↗
RAE-B antenna aspect system
The development of a facsimile camera to serve as the antenna aspect system for the second generation Radio Astronomy Explorer Satellite designated RAE-B is summarized. The camera system consists of two cameras and a data encoder. The program deliverables were two flight cameras, a flight encoder and one spare flight encoder. The RAE-B satellite was originally intended for an earth orbit mission and the facsimile subsystem characteristics were specified with this in mind. Subsequently the flight mission was changed to orbit the moon; however the change occurred too late to significantly influence the facsimile system design. Therefore, this report considers only compliance of the system to earth orbit requirements.
Source record↗
Correcting for nonlinear effects in fracture toughness testing.
Expressions for fracture toughness, which include nonlinear effects due to crack front plastic yield and possible small crack extension prior to fracture instability, are obtained for several test specimen configurations. Inclusion of such effects is based on a simple compliance type determination of the total energy rate at onset of fast fracture.
Liebowitz, H.↗
The fracture energy and some mechanical properties of a polyurethane elastomer.
The energy required to form a unit of new surface in the fracture of a polyurethane elastomer is determined. The rate sensitivity of the material has been reduced by swelling it in toluene. This paper primarily describes the experimental work of measuring the lower limit of the fracture energy. With this value and the creep compliance as a basis, the rate dependence of fracture energy for the unswollen material has been determined. It is thus shown that the dependence of the fracture energy on the rate of crack propagation can be explained by energy dissipation around the tip of the crack. Good agreement between the theoretically and experimentally determined relationships for the rate-sensitive fracture energy is demonstrated.
Mueller, H. K.↗
Evaluation of remote sensing in control of pink cotton bollworm
The author has identified the following significant results. The U-2 underflight photography has shown that the critical stages in cotton plow down (defoliation, shredding, and plowing) can be identified. This result will prove invaluable to a user agency whose purpose is to monitor the cotton season for compliance with California State law.
Lewis, L. N.↗
Manipulator technology for the space shuttle
A shuttle-attached manipulator is currently proposed as the payload-handling device for the space shuttle. Basic requirements for the manipulator involve length, force, compliance, and control. Approaches for studying control methods are presented and simulation methods are discussed. Basic details about the two earthbased manipulators selected for simulation experiments are related to the test methods. Preliminary data from one test are shown as an example of the direction of the testing. A computer-generated simulation is explained, and the relationship of the three simulations to the design problems is discussed.
Burroughs, E. G.↗