Results 61 to 70 of about 547,522 (314)

Comparative analysis of emulsion pump stations of RMI and KAMAT

open access: yesGong-kuang zidonghua, 2019
Overall structure of KAMAT pump station and RMI pump station which have high domestic market share were introduced. Key technologies in terms of deceleration system, hydraulic system, lubrication system, protection system and control system were ...
YE Jia
doaj   +1 more source

Energy limiter for hydraulic actuators Patent [PDF]

open access: yes, 1971
System to control speed of hydraulically movable members by limiting energy applied to actuators with hydraulic servo ...
Steinmetz, C. P.
core   +1 more source

Full- and Reduced-order Model of Hydraulic Cylinder for Motion Control [PDF]

open access: yes, 2017
This paper describes the full- and reduced-order models of an actuated hydraulic cylinder suitable for system dynamics analysis and motion control design.
Ruderman, Michael
core   +2 more sources

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

open access: yesAdvanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

Imitation models of aircraft hydraulic units with account for typical faults

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019
А method based on comparing oscilloscope patterns of operational parameters with reference curves is one of the most promising methods of diagnosing hydraulic systems among the existing ones. Its implementation does not allow accurate localization of the
A. M. Gareyev   +2 more
doaj   +1 more source

Mechanically limited, electrically operated hydraulic valve system for aircraft controls Patent [PDF]

open access: yes, 1959
Development of aircraft control system with high performance electrically controlled and mechanically operated hydraulic valves for precise flight ...
Foster, J. V.
core   +1 more source

Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance

open access: yesAdvanced Functional Materials, EarlyView.
A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer   +2 more
wiley   +1 more source

Assessment of the accuracy of heavy aircraft control, taking into account the functioning of the indicator on the windshield and flight control actuators

open access: yesНаучный вестник МГТУ ГА
The article is devoted to the issue of evaluating the piloting performance of an aircraft, taking into account various factors that have a special effect on the control process.
A. A. Malchenko   +2 more
doaj   +1 more source

Anti-backlash circuit for hydraulic drive system Patent [PDF]

open access: yes, 1966
Antibacklash circuit for hydraulic drive ...
Acord, J. D.
core   +1 more source

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

open access: yesAdvanced Functional Materials, EarlyView.
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco   +7 more
wiley   +1 more source

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