Results 31 to 40 of about 1,463,429 (213)

Approximate Analytical Model for the Squeeze-Film Lubrication of the Human Ankle Joint with Synovial Fluid Filtrated by Articular Cartilage [PDF]

, 2010
The aim of this article is to propose an analytical approximate squeeze-film lubrication model of the human ankle joint for a quick assessment of the synovial pressure field and the load carrying due to the squeeze motion.
Emilio Gòmez, Roberto D’Amato, D'Amato, Roberto, Alessandro Ruggiero, Ruggiero, Alessandro, Gomez Garcia, Emilio   +5 more
core   +1 more source

Bistable Isochoric Chiral Metamaterials with Reprogrammable Multiaxial Responses

Advanced Functional Materials, EarlyView.
An isochoric bistable rotational unit cell enables in situ modification of internal contact conditions post‐fabrication, without altering the global envelope dimensions of the surrounding architecture. By selectively switching between open and closed states, the tessellated chiral metamaterial can reprogram its volumetric response, including bulk ...
Shujia Chen, Lei Wu, Jingran Liu, Damiano Pasini   +3 more
wiley   +1 more source

Research on the Dynamic Characteristics of High-Speed Rotors Supported by a Double Layer Squeeze Film Damper-Bearing Composite Structure

IEEE Access
In this study, a dynamic model for a damper-bearing-rotor system featuring a novel double layer squeeze film damper-bearing composite structure was developed, addressing the limitations of conventional single layer dampers in providing sufficient ...
Wei Wang, Weimin Wang, Weibo Li, Jiale Wang, Tianqing Li   +4 more
doaj   +1 more source

Static Stiffness Parametric Studies of Newly Conceptualized Inter Shaft Squeeze Film Damper (ISSFD) Rings

International Journal of Engineering Materials and Manufacture, 2019
Most of the modern gas turbine engine designs requiring super critical operations will often have squeeze film dampers (SFDs) on the high pressure spool bearing as an inevitable feature.
SHIVAPRASAD MALLAIAH HIRENALLUR, GIRIDHARA G GAIKWAD, ARUNKUMAR V   +2 more
doaj   +1 more source

On Dynamic Characteristics of ER Fluid Squeeze Film Damper

JSME international journal. Ser. C, Dynamics, control, robotics, design and manufacturing, 1995
This paper deals with an application of Electrorheological (ER) fluid to a squeeze film damper which enables reduction of whirling amplitude of rotor by adjusting the damping property at each rotating speed. An experimental model composed of a flexible shaft and a controllable ER squeeze film damper was constructed and its performance was studied under
Morishita, Shin, An, Young Kong
openaire   +3 more sources

Dual clearance squeeze film damper [PDF]

, 1985
A dual clearance hydrodynamic liquid squeeze film damper for a gas turbine engine is described. Under normal operating conditions, the device functions as a conventional squeeze film damper, using only one of its oil films.
Fleming, D. P.
core  

Low‐Outgassing Liquid Metal–Silicone Composites for Multifunctional Space Applications

Advanced Materials Technologies, EarlyView.
Integrating liquid metal microdroplets into a space‐grade silicone creates a multifunctional composite while preserving its inherent flexibility and low‐outgassing behavior. The composite has 11×$\times$ higher thermal conductivity while remaining thermally stable and maintaining a total mass loss of ≤$\le$ 1% under thermal vacuum testing.
Spencer Pak, Matthew R. Jamison, Cadré J. Francis, Ravi Tutika, Stephen A. Morin, Eric J. Markvicka   +5 more
wiley   +1 more source

The Control of Engine Vibration Using Squeeze-Film Dampers [PDF]

Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; Process Industries; Technology Resources; General, 1982
This paper describes the following roles of a squeeze-film damper when used in gas turbine applications as a means of reducing vibration and transmitted force due to unbalance. (a) as an element in parallel with a soft spring in a vibration isolator and (b) as an element in series with the stiffness of the engine pedestal.
openaire   +1 more source

Potential of Nanoparticle‐Based Phototherapies for Future Treatment of Uveal Melanoma

Advanced Science, EarlyView.
This review evaluates nanoparticle‐based phototherapies for uveal melanoma, highlighting emerging strategies to enhance tumor targeting, light delivery, and treatment precision. Preclinical data indicate improved efficacy and reduced toxicity, supporting their potential to enhance localized treatment and future translational advances. (Generated by the
Emilie Lambert, Christophe Nguyen, Sean Edward Dunn, Magali Gary‐Bobo, Jérôme Lacombe, Justin Moser, Frédéric Zenhausern, Jean‐Olivier Durand, Frédérique Cunin   +8 more
wiley   +1 more source

Optimization of Control Parameters of Magnetorheological Squeeze Film Dampers to Minimize the Vibration Amplitude of Rotors Passing the Critical Speed

Applied Sciences, 2023
Rotors are often coupled with a stationary part by rolling element bearings. To suppress their excessive vibration, the bearings are inserted in squeeze film dampers.
Jaroslav Zapoměl, Petr Ferfecki, Michal Molčan   +2 more
doaj   +1 more source