Results 91 to 100 of about 18,648 (210)
Comparison of calculated and measured blade loads on a full-scale tilting proprotor in a wind tunnel [PDF]
The loads measured in a wind tunnel on a full-scale tilting proprotor are compared with calculated results. The data consists primarily of oscillatory beamwise bending moments at 35% radial station, oscillatory spindle chord bending moments, and ...
Johnson, W.
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Measurement of interstage fluid-annulus dynamical properties [PDF]
, 1982 The work described in this paper is part of an Electric Power Research Institute sponsored effort to improve rotor vibrational performance on power plant feed water pumps.
Adams, M. L. +2 more
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Jixie qiangduHeat is very important to the rotation accuracy of the spindle, and the accurate calculation of the convection heat transfer coefficient is the premise of obtaining accurate results from the finite element steady-state thermal analysis.
ZHANG ZhuangZhuang +2 more
doaj
Hover performance tests of baseline metal and Advanced Technology Blade (ATB) rotor systems for the XV-15 tilt rotor aircraft [PDF]
Rotor hover performance data were obtained for two full-scale rotor systems designed for the XV-15 Tilt Rotor Research Aircraft. One rotor employed the rectangular planform metal blades (rotor solidity = 0.089) which were used on the initial flight ...
Alexander, H. +4 more
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Thermal Error Modelling of a CNC Machine Tool Feed Drive System using FEA Method [PDF]
, 2016 Recirculating ball screw systems are commonly used in machine tools and are one of the major heat sources which cause considerable thermal drift in CNC machine tools.
Abuaniza, Ayman +3 more
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Government review of the Mod-2 wind turbine (as-built) [PDF]
The findings and recommendations of the Government committee formed to conduct an as-built review of the three Mod-2 wind turbine units at Goldendale, Washington are given.
Birchenough, A. G. +7 more
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The design of a turboshaft speed governor using modern control techniques [PDF]
The objectives of this program were: to verify the model of off schedule compressor variable geometry in the T700 turboshaft engine nonlinear model; to evaluate the use of the pseudo-random binary noise (PRBN) technique for obtaining engine frequency ...
Delosreyes, G., Gouchoe, D. R.
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, 2023 Machine tool spindles, complex dynamic systems under thermal growth, are significantly influenced by the shaft assembly's dimensions, including the spindle shaft and various press-fit auxiliary elements. Despite the importance of these dimensions, their effects on the spindle's dynamic and thermo-mechanical behavior have yet to be sufficiently explored.
Afridi, Saif Ahmad +4 more
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Frequency response functions and modal parameters of a rotating system exhibiting rotating damping [PDF]
, 2014 In the analysis of the stability threshold speed caused by rotating damping in rotating machinery, there is a lack of experimental data. This stability threshold speed can be found theoretically by means of a linear speed dependent model. The accuracy of
Derammelaere, Stijn +3 more
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Research on Manufacturing Processes and Dynamic Balance Test of Motorized Spindle Shaft [PDF]
Proceedings of the 6th International Workshop of Advanced Manufacturing and Automation, 2016 Hongfei Zhu +4 more
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