Results 71 to 80 of about 3,492 (237)
Recent Advances in Variable‐Stiffness Robotic Systems Enabled by Phase‐Change Materials
Advanced Robotics Research, Volume 2, Issue 1, February 2026.Phase‐change materials (PCMs), such as shape memory alloys, hydrogels, shape memory polymers, liquid crystal elastomers, and low‐melting‐point alloys, are driving advancements in stiffness‐tunable robotic systems across a wide range of applications. This review highlights recent progress in PCM‐enabled robotics, focusing on their underlying mechanisms,
Sukrit Gaira +5 more
wiley +1 more source
MATEC Web of Conferences, 2018 The theoretical analyses and practical experience show that only the damping effect adaptable to the current operating conditions makes it possible to achieve optimum performance of damping devices inserted in the supports of rotating machines.
Zapoměl Jaroslav +2 more
doaj +1 more source
Influence of assembly conditions on the stressed-stained state of damper support elastic rings
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2017 The article considers the influence of different tolerance values on the stiffness of elastic rings in squeeze film dampers. This type of damper is widely used in gas turbine engine supports.
D. S. Diligensky, D. K. Novikov
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Controlling rotordynamic response without squeeze-film dampers (SFDs)
Journal of Physics: Conference Series, 2009 SFDs are widely used in rotating machinery to provide damping in order to control rotordy- namic response. Although popular, under certain conditions SFDs pose problems such as causing non- synchronous vibration arising from unbalance forces interacting with fluid-film forces affected by cavita- tion. Furthermore, in the interests of moving towards oil-
S Jiffri, S Garvey
openaire +1 more source
Instability of an intershaft squeeze film damper in a two-spool rotor dynamics simulator [PDF]
An instability associated with an intershaft squeeze film damper is described. The squeeze film is located between the intershaft bearing outer race and the low-speed shaft of a five-bearing, two-spool test rig.
Alderson, R. G.
core +1 more source
Advanced Science, Volume 13, Issue 11, 23 February 2026.Two microwave‐assisted synthetic methods, specifically a one‐pot and a seeded‐growth approach, have been developed within a hydroalcoholic solution for the growth of single‐phase ternary WxTi1‐xO2 and heterostructured TiO2‐WO3‐x colloidal nanocrystals.
Riccardo Scarfiello +13 more
wiley +1 more source
Experimentally determined stiffness and damping of an inherently compensated air squeeze-film damper [PDF]
Values of damping and stiffness were determined experimentally for an externally pressurized, inherently compensated, compressible squeeze-film damper up to excitation frequencies of 36,000 cycles per minute.
Cunningham, R. E.
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A Simplified Method for Predicting the Stability of Aerodynamically Excited Turbomachinery [PDF]
, 1991 A method is presented for the quick and accurate prediction of the stability of aerodynamically excited turbomachinery using real eigenvalue/eigenvector data obtained from a rotordynamics model.
Storace, Albert F.
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Non-linear performance of a three-bearing rotor incorporating a squeeze-film damper [PDF]
This paper is concerned with the non-linear vibration performance of a rigid rotor supported on three bearings, one being surrounded by a squeeze-film damper.
Dede, M., Holmes, R.
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Research on Dynamic Characteristic Coefficients of Integral Squeeze Film Damper
MachinesIntegral squeeze film damper (ISFD) is a new type of structure that appeared on the basis of traditional squeeze film damper (SFD). Since the oil film in ISFD is a segmented structure without annular flow, the nonlinearity of the oil film force has been ...
Wei Yan +5 more
doaj +1 more source