摘要 :
This report presents an evaluation of the paper presented and the discussion held during the AGARD Fluid Dynamics Panel symposium on Aerodynamics Characteristics of Controls held 14-17 May 1979 in Pozzuoli, Italy. A brief discussi...
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This report presents an evaluation of the paper presented and the discussion held during the AGARD Fluid Dynamics Panel symposium on Aerodynamics Characteristics of Controls held 14-17 May 1979 in Pozzuoli, Italy. A brief discussion of the presentations and discussions is followed by a summary of conclusions and recommendations for action. The full test of the papers is available in AGARD Conference Proceedings No. 262, published in September 1979. (Author)
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摘要 :
An experimental effort to demonstrate the feasibility of an active gust alleviator using a fluidically actuated jet flap control system was undertaken. The wing model had a variable deflection jet at the trailing edge and was free...
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An experimental effort to demonstrate the feasibility of an active gust alleviator using a fluidically actuated jet flap control system was undertaken. The wing model had a variable deflection jet at the trailing edge and was free to move in pitch only. A vane mounted ahead of the wing served as gust sensor and provided the signal which controlled jet angle. Experimental results showed the system capable of alleviating up to 92% of the motion caused by a sinusodial gust at constant amplitude. RMS values of wing rotation angle were found to be 0.68degrees with control off and 0.29degrees with control on when excited by a random two-dimensional gust. (Author)
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Wind-tunnel tests were carried out to determine low-speed lift, drag, and pitching moment of the wing tested alone, with various flaps, and in various combinations with the fuselage having 10.2:1 fineness ratio. The results are gi...
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Wind-tunnel tests were carried out to determine low-speed lift, drag, and pitching moment of the wing tested alone, with various flaps, and in various combinations with the fuselage having 10.2:1 fineness ratio. The results are given in graphs. Rolling-moment characteristics are included in some instances. The locations of aerodynamic centers are given for some configurations and for various wing-fuselage combinations. The table gives characteristics for Reynolds No. 6,840,000 for comparing effects of various flaps. NOTE: Requests for copies of this report must be addressed to: N.A.C.A., Washington, DC.
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摘要 :
The document describes the operation of the Inspection Workstation (IWS) of the Automated Manufacturing Research Facility (AMRF). The IWS uses a coordinate measuring machine for dimensional metrology, an optical roughness gage for...
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The document describes the operation of the Inspection Workstation (IWS) of the Automated Manufacturing Research Facility (AMRF). The IWS uses a coordinate measuring machine for dimensional metrology, an optical roughness gage for surface finish inspection, and a robot for part handling within the workstation. Each of these three pieces of equipment is supervised by a separate controller, and a fourth controller (the workstation controller) coordinates these equipment controllers. The IWS can receive its commands either from the AMRF Cell Controller or from the keyboard of the IWS workstation controller. The detailed instructions for starting the IWS and maintaining its operation in either of these two modes are provided in the document.
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