Results 81 to 90 of about 2,407,613 (207)
Measurement by a cylinder test stand and tyre rolling resistance [PDF]
Transport, 2006 Sometimes it is necessary to test how repair affects the properties of the car. These tests are carried out using a cylinder test stand. During the test the tyre is rolling between two cylinders of a small diameter.
A. Dávid, P. Faith, V. Rievaj
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The design and analysis of single flank transmission error tester for loaded gears [PDF]
To strengthen the understanding of gear transmission error and to verify mathematical models which predict them, a test stand that will measure the transmission error of gear pairs under design loads has been investigated.
Bassett, Duane E., Houser, Donald R.
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The purpose of this system is to simulate an internal short on battery cells by causing deformation (a crushing force) in a cell without penetration. This is performed by activating a hydraulic cylinder on one side of a blast wall with a hydraulic pump ...
Collins, Jacob +2 more
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Design and application of electromechanical actuators for deep space missions [PDF]
During the period 8/16/92 through 2/15/93, work has been focused on three major topics: (1) screw modeling and testing; (2) motor selection; and (3) health monitoring and fault diagnosis. Detailed theoretical analysis has been performed to specify a full
Haskew, Tim A., Wander, John
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Studies on proper simulation during static testing of forward speed effects on fan noise [PDF]
Significant differences exist in the noise generated by engines in flight and engines operating on the test stand. It was observed that these differences can be reduced by the use of an inflow control structure (ICS) in the static test configuration. The
Ganz, U. W. +3 more
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Refuge alternatives relief valve testing and design with updated test stand. [PDF]
Min Eng, 2018 Lutz TJ +3 more
europepmc +1 more source
Efficient fault diagnosis of helicopter gearboxes [PDF]
Application of a diagnostic system to a helicopter gearbox is presented. The diagnostic system is a nonparametric pattern classifier that uses a multi-valued influence matrix (MVIM) as its diagnostic model and benefits from a fast learning algorithm that
Chin, H., Danai, K., Lewicki, D. G.
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Assessment of worm gearing for helicopter transmissions [PDF]
A high-efficiency hydrostatic worm gear drive for helicopter transmissions is assessed. The example given is for a large cargo helicopter with three 4000-kW engines and transmission reduction ratio of 110. Also contained are: an efficiency calculation, a
Chaiko, Lev
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Journal of Aerospace Technology and Management, 2011 The main objective of this work was to present the specifi cation of an experimental fi ring test stand for liquid rocket engines (LRE) and develop a program for control and acquisition of data.
Emerson Andrade Santos +3 more
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