Results 21 to 30 of about 46,918 (252)

Multi-objective optimization of the hollow shaft direct drive motor

open access: yesAdvances in Mechanical Engineering, 2023
Surface permanent magnet synchronous motor (SPMSM) is widely used in low-speed and high torque permanent magnet synchronous motor. A multi-objective optimization method of hollow shaft direct drive motor (HSDDM) for double direct drive feed system (DDFS)
Zhaoguo Wang, Jingyu Gong, Bei Liu
doaj   +1 more source

The Chosen Aspects of Skew Rolling of Hollow Stepped Shafts

open access: yesMaterials, 2021
The paper presents chosen aspects of the skew rolling process of hollow stepped products with the use of a skew rolling mill designed and manufactured at the Lublin University of Technology. This machine is characterized by the numerical control of spacing between the working rolls and the sequence of the gripper axial movement, which allows for the ...
Jarosław Bartnicki   +2 more
openaire   +2 more sources

Rotary leveling base platform [PDF]

open access: yes, 1978
A leveling apparatus for the precise adjustment of a scientific instrument is reported. A base member is provided having a hollow cylindrical shape. A table for supporting the instrument rests on the base and has a shaft portion extending below the table.
Delaplaine, R. W., Mossolani, D. L.
core   +1 more source

Smart Catheters for Diagnosis, Monitoring, and Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman   +12 more
wiley   +1 more source

Roundness error analysis of 25CrMo4 thick-walled hollow shaft by cross wedge rolling

open access: yes工程科学学报, 2019
It is important for mechanical structures to be lightweight, and this is mainly realized by using hollow parts in structures. Presently, hollow shaft parts are used in vehicles, machine tools, and other equipment.
JIANG Yang   +3 more
doaj   +1 more source

Plugged hollow shaft makes fatigue-resistant shear pin [PDF]

open access: yes, 1966
Shear pin coupling with plugged hollow shaft provides required load capacity for shaft protection and has no groove to induce fatigue ...
Hankinson, T. W. E.
core   +1 more source

Hydrogelation via Supramolecular Copolymerization of Structural Water within Adaptive Metal–Organic Fibers

open access: yesAdvanced Materials, EarlyView.
Structural water is harnessed as an active co‐monomer to drive supramolecular polymerization in bulk water. Zinc(II) Salphen complexes confine water molecules to form hollow, metal–organic nanofibers that assemble into adaptive hydrogels with thermoresponsive mechanics and selective chiral recognition.
Merlin R. Stühler   +10 more
wiley   +1 more source

Axial response and material efficiency of tapered helical piles

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2021
Different techniques have been proposed to increase the bearing capacity of open-ended piles. Welding helices to the shaft and tapering the pile shaft could be used simultaneously to enhance the static and dynamic behaviors of these piles.
Hamid Mortazavi Bak   +3 more
doaj   +1 more source

Fatigue-resistant shear pin [PDF]

open access: yes, 1969
Fatigue resistant shear pin with hollow shaft and two ...
Hankinson, T. W. E.
core   +1 more source

Development of Heat Engines Powered by Twisted and Coiled Polymer Fiber Actuators

open access: yesAdvanced Materials Technologies, EarlyView.
Continuously rotating engines driven by thermally responsive actuating materials can turn waste heat into useful energy. For the first time heat engines operated by twisted and coiled polymer fiber actuators are demonstrated with engine design guided by two simple analytical models.
Geoffrey M. Spinks   +2 more
wiley   +1 more source

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