Incommensurability and rationality in engineering design: the case of functional decomposition [PDF]
, 2011 In engineering design research different models of functional decomposition are advanced side-by-side. In this paper I explain and validate this co-existence of models in terms of the Kuhnian thesis of methodological incommensurability.
van Eck, Dingmar
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Optically Levitated Nanodumbbell Torsion Balance and GHz Nanomechanical Rotor
, 2018 Levitated optomechanics has great potentials in precision measurements, thermodynamics, macroscopic quantum mechanics and quantum sensing. Here we synthesize and optically levitate silica nanodumbbells in high vacuum.
Ahn, Jonghoon +7 more
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Design Method of Adaptive Drilling Stick-Slip Vibration Downhole Control Tool
Shiyou jixieThere are few reports on the design method for downhole stick-slip vibration adaptive prevention and control tool， and the key parameter design models and methods are not yet perfect.
Zhou Bo +5 more
doaj +1 more source
Gravity gradient boom stabilization system for the Applications Technology Satellite /ATS-E/, volume 1 Final report [PDF]
Gravity gradient boom stabilization system for ATS
Shephard, B. S. +2 more
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ULTIMATE STRENGTH ANALYSIS OF BOX GIRDER UNDER HOGGONG BENDING MOMENT, TORQUE AND WATER PRESSURE
International Journal of Research in Engineering and Technology, 2014 In this paper, the ultimate strength analysis of the box girders under combined load is investigated using a commercial FEA program, ABAQUS. It studies the ultimate strength analysis of the Reckling No. 23 box girders model. This paper mainly analyzes the influence of the ultimate strength of the box girders model under hogging bending moment, torque ...
openaire +1 more source
Inherent Problems in Designing Two-Failure Tolerant Electromechanical Actuators [PDF]
, 1984 An electromechanical ac-powered rotary actuated four-bar linkage system for rotating the Shuttle/Centaur deployment adapter is described. The essential features of the deployment adapter rotation system (DARS) are increased reliability for mission ...
Hornyak, S.
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Motor/generator and electronic control considerations for energy storage flywheels [PDF]
, 1984 A spacecraft electric power supply system is described. Requirements of the system are to accelerate a momentum wheel to a fixed maximum speed when solar energy is available and to maintain a constant voltage on the spacecraft bus under varying loads ...
Nola, F. J.
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Design of power-transmitting shifts [PDF]
Power transmission shafting which is a vital element of all rotating machinery is discussed. Design methods, based on strength considerations for sizing shafts and axles to withstand both steady and fluctuating loads are summarized.
Loewenthal, S. H.
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Focal plane transport assembly for the HEAO-B X-ray telescope [PDF]
, 1979 The High Energy Astronomy Observatory - Mission B (HEAO-B), an earth orbiting X-ray telescope facility capable of locating and imaging celestial X-ray sources within one second of arc in the celestial sphere, is considered.
Allard, P. D. +4 more
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Reliability approach to rotating-component design [PDF]
A probabilistic methodology for designing rotating mechanical components using reliability to relate stress to strength is explained. The experimental test machines and data obtained for steel to verify this methodology are described. A sample mechanical
Kececioglu, D. B., Lalli, V. R.
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