Results 221 to 230 of about 14,767 (267)

Torsional Damping Capacity

Aircraft Engineering and Aerospace Technology, 1939
THE introduction and recent development of instruments for the accurate measurement of torsional damping capacity have provided for the metallurgist an accurate indication of this property, while structural changes due to processing can be observed and much valuable information gained.
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Damping Capacity of SiCp/AZ61 Composites

Advanced Materials Research, 2010
Magnesium matrix composites SiCp/ AZ61 reinforced with SiC particulates was fabricated by stirring-melt casting technique. The damping properties of the composites have been studied with dynamic mechanical thermal analysis and micro-structural observation.
Hong Yan, Huang Xin, Qang Hu
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Microyielding and damping capacity in magnesium

Scripta Materialia, 2014
The damping capacity and mechanical response under uniaxial tension and compression were examined for specimens of extruded magnesium inclined by 0°, 15° and 30° relative to the extrusion direction. It was found that both the microyielding under uniaxial deformation and the occurrence of strain-dependent damping capacity pertain to the same physical ...
Hiroyuki Watanabe, Tadaaki Sawada, Yasuyoshi Sasakura, Naoko Ikeo, Toshiji Mukai   +4 more
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Damping capacity of VNS-2 steel

Strength of Materials, 1977
1. The damping properties of VNS-2 steel are mainly due to the dissipation of vibrational energy of a nonmagnetic nature. The capacity of the steel to dissipate energy during the attentuation of the vibrations is largely determined by the amount of residual austenite in the structure.
E. S. Makhnev, V. M. Kondratov, V. A. Morozov, A. I. Skvortsov, T. M. Gapeka   +4 more
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An approach to higher damping capacity: a comparison of material damping with computer-controlled damping

Journal of Alloys and Compounds, 1994
Abstract An approach to higher damping by positively utilizing computer-aided control techniques has been investigated by comparing the relative magnitudes of active (computer-controlled) damping and material damping. The active damping effect increases the damping capacity of a brass beam vibration system from δif=0.012 (logarithmic decrement value ...
Hisashi Kawabe, Kazunobu Yoshida
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Factors Controlling Superelastic Damping Capacity of SMAs

Journal of Materials Engineering and Performance, 2009
In this paper, questions linked to the practical use of superelastic damping exploiting stress-induced martensitic transformation for vibration damping are addressed. Four parameters, particularly vibration amplitude, prestrain, temperature of surroundings, and frequency, are identified as having the most pronounced influence on the superelastic ...
L. Heller, P. Šittner, J. Pilch, M. Landa   +3 more
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SPECIFIC DAMPING CAPACITY FOR ARBITRARY LOSS ANGLE

Journal of Sound and Vibration, 1998
Abstract An analysis was performed to establish a relationship between specific damping capacity and loss angle for materials with arbitrary loss angle. The motivation for this work is that the usual relationship is only valid for low loss materials and leads to some confusion when the specific damping capacity is greater than one. In this paper, two
G.F. Lee, B. Hartmann
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Damping capacity, strain hardening and fatigue

Proceedings of the Physical Society, 1947
An electromagnetic method of exciting torsional resonance vibrations is described. For some alloys of aluminium, notably binary alloys containing 5% and 11% of magnesium, vibrational strains of sufficient magnitude to cause fatigue cracks can be developed by this method at frequencies of the order of one kilocycle per second.
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The damping capacity of a multilayer steel

Strength of Materials, 1994
Damping capacities have been compared for multilayer steel specimens (substrate steel AK), which have various strengths in the joints between the layers and various dispositions of the joint zones relative to the surface; a multilayer steel containing a cobalt-base foil has also been examined. With that steel, there is a direct relationship between the
A. P. Bovsunovskii, K. A. Tsykulenko
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The Damping Capacity of Damping Devices during Rotor-over-Stator Rolling

Thermal Engineering, 2019
The article presents results of investigating the influence of elastic damping devices that secure the rotor and the stator under high-amplitude oscillations under unfavorable development of an accident, e.g., upon rubbing of the rotor against the stator.
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