Sensitivity analysis of torsional vibration characteristics of helicopter rotor blades. Part 2: Aerodynamics and sensitivity analysis [PDF]
A theoretical investigation of dynamic response characteristics of rotor blades was carried out with special emphasis on torsional degrees-of-freedom.
Bratanow, T., Ecer, A.
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Alfven seismic vibrations of crustal solid-state plasma in quaking paramagnetic neutron star [PDF]
, 2010 Magneto-solid-mechanical model of two-component, core-crust, paramagnetic neutron star responding to quake-induced perturbation by differentially rotational, torsional, oscillations of crustal electron-nuclear solid-state plasma about axis of magnetic ...
Bastrukov, S. +4 more
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Sensitivity analysis of torsional vibration characteristics of helicopter rotor blades. Part 1: Structural dynamics analysis [PDF]
A theoretical investigation of structural vibration characteristics of rotor blades was carried out. Coupled equations of motion for flapwise bending and torsion were formulated for rotor blades with noncollinear elastic and mass axes. The finite element
Bratanow, T., Ecer, A.
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State Dependent Delayed Drill-string Vibration : Theory, Experiments and New Model [PDF]
, 2017 L.J. Pei would like to acknowledge NNSF of China (No.
Kapitaniak, Marcin Tomasz +4 more
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Mixed finite element models for free vibrations of thin-walled beams [PDF]
Simple, mixed finite element models are developed for the free vibration analysis of curved thin-walled beams with arbitrary open cross section. The analytical formulation is based on a Vlasov's type thin-walled beam theory with the effects of flexural ...
Min, Byung-Jin +2 more
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Experimental investigation into amplitude-dependent modal properties of an eleven-span motorway bridge [PDF]
, 2015 The authors would like to thank their supporters. New Zealand Earthquake Commission (EQC) Research Foundation provided financial support for experimental work (Grant No. UNI/578). New Zealand Transport Agency (NZTA) provided access to the bridge.
Beskhyroun, Sherif +2 more
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Field verification of lateral-torsional coupling effects on rotor instabilities in centrifugal compressors [PDF]
Lateral and torsional vibration data obtained on a centrifugal compressor train which had shaft instabilities and gear failures is examined. The field data verifies that the stability of centrifugal compressors can be adversely affected by coincidence of
Szenasi, F. R., Wachel, J. C.
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Damage-imperfection indicators for the assessment of multi-leaf masonry walls under different conditions [PDF]
, 2018 The complexity of multi-leaf masonry walls suggests further researches on the dy- namic behaviour mainly characterized by incoherent response between the different layers.
Aldreghetti, Ivano +6 more
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Modal analysis of multistage gear systems coupled with gearbox vibrations [PDF]
An analytical procedure to simulate vibrations in gear transmission systems is presented. This procedure couples the dynamics of the rotor-bearing gear system with the vibration in the gear box structure. The model synthesis method is used in solving the
Choy, F. K. +4 more
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Dynamic stability of space vehicles. Volume 3 - Torsional vibration modes [PDF]
Torsional model development and model calculations for cylindrical space vehicle systems and systems employing clustered ...
Gieseke, R., Lukens, D. R., Schuett, R.
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