Results 251 to 260 of about 40,379 (295)
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Simulation of a Hydraulic Actuator
IBM Journal of Research and Development, 1964A simple mathematical model of a hydraulic actuator is formulated, and the differential equations describing the model are derived. Experimental data and a computational solution of the model are determined. Results correspond favorably with oscilloscope velocity traces; hence the model could serve a useful purpose in mechanical design.
A. H. Mitchell, K. L. Johnson
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Acoustical testing of hydraulic actuators
The Journal of the Acoustical Society of America, 1987A device for testing hydraulic actuators using acoustical transducers to se sound sources indicative of leaks or other defects in the actuator. A graph of acoustic signals versus piston location may be determined using one acoustic transducer and one position sensor. A correlation function may be obtained by cross-correlating the output from two spaced
Joseph W. Dickey, Lloyd E. Powell
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DIGITAL HYDRAULIC ACTUATOR STUDY
1966Abstract : To further support the practicability of the digital hydraulic actuator as a control component, IBM has successfully demonstrated operation of the Phase III laboratory model in a simulated digital flight control system. Performance using the laboratory model is compared with the performance when using a mathematical model.
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Hydraulically Actuated Linkage Motion Analysis
SAE Technical Paper Series, 1990<div class="htmlview paragraph">Many types of mechanical linkages are in use on fluid power equipment. Linkages are often used in hydromechanical servomechanisms and in actuator powered machine members used to accomplish desired working functions.
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1990
An electro-hydraulic actuator has an electric motor (25) disposed in a hydraulic fluid reservoir (17) and connected to drive a hydraulic fluid pump (23). The actuator includes an actuator rod (15) which extends or retracts as a piston (20) is hydraulically driven in a cylinder (19). An actuator housing (13) forms the reservoir (17) and the cylinder (19)
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An electro-hydraulic actuator has an electric motor (25) disposed in a hydraulic fluid reservoir (17) and connected to drive a hydraulic fluid pump (23). The actuator includes an actuator rod (15) which extends or retracts as a piston (20) is hydraulically driven in a cylinder (19). An actuator housing (13) forms the reservoir (17) and the cylinder (19)
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2000
The invention relates to a clutch with a pressure plate (1) which in an engaged position pushes a driving disk (2) against a counter surface (3). For releasing the clutch, said pressure plate displaces a clutch controller (7) into a disengaged position in which the pressure plate (1) does not push the driving disk (2) against the counter surface (3 ...
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The invention relates to a clutch with a pressure plate (1) which in an engaged position pushes a driving disk (2) against a counter surface (3). For releasing the clutch, said pressure plate displaces a clutch controller (7) into a disengaged position in which the pressure plate (1) does not push the driving disk (2) against the counter surface (3 ...
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Energy-saving and accurate motion control of a hydraulic actuator with uncertain negative loads
Chinese Journal of Aeronautics, 2021Bobo Helian, Zheng Chen, Bin Yao
exaly
Constrained Motion Control of an Electro- Hydraulic Actuator Under Multiple Time-Varying Constraints
IEEE Transactions on Industrial Informatics, 2023Bobo Helian, Zheng Chen, Bin Yao
exaly