Results 91 to 100 of about 1,536 (218)

Investigation of the Influence of Splitter Blades on the Resonance Conditions of Impellers

Applied Sciences, 2019
The conventional resonance conditions are derived based on the conventionally designed impellers without splitter blades. This paper proposes the resonance conditions for impellers under the excitation from the impeller−diffuser interaction with ...
Kaicheng Liu, Cheng Yan
doaj   +1 more source

The Twisted-Blade Model for Radial-Turbine Mistuning [PDF]

, 2017
One of the common failure modes of the diesel-engine turbochargers is the high-cycle fatigue (HCF) of the turbine-wheel blades. Mistuning of the blades due to the casting process is believed to contribute to this failure mode.
Valentina Futoryanova
core   +1 more source

Experimental investigations of the effects of mistuning on bladed disk dynamics. [PDF]

, 2002
A bladed disk, such as a single stage of a turbomachinery rotor, is designed to be rotationally periodic. In reality, however, there are inevitably small differences between the blades, due to manufacturing tolerances, material defects, and uneven wear ...
Judge, John Andrew
core  

Mass Mistuning Reduced Order Models for Bladed Disks With Shroud Friction Joints [PDF]

This paper introduces a new reduced order model (ROM) for nonlinear forced response analysis of mistuned bladed disks with localized contact nonlinearities.
Saletti, Giacomo, Zucca, Stefano, Pourkiaee, SeyyedMehrdad   +2 more
core   +3 more sources

NATURAL FREQUENCIES OF TUNED AND MISTUNED BLADED DISCS ON A SHAFT

TASK Quarterly, 2006
The dynamic behaviour of a rotor consisting of two tuned and mistuned bladed discs on a solid shaft is considered. The effect of the shaft’s flexibility on the dynamic characteristics of the bladed discs and the coupling effects between the shaft and ...
ROMUALD RZĄDKOWSKI, MARCIN DREWCZYŃSKI, LESZEK KUBITZ   +2 more
doaj  

Analysis and Design Considerations for Transmitter-Compensated Inductance Mistuning in a WPT System with LCC-S Topology

World Electric Vehicle Journal
In this paper, theoretical analysis and system simulations are carried out to study the effects of the transmitter-compensated inductance mistuning on charging power, transfer efficiency, and the phase angle between the input voltage and input current in
Benhui Zhang, Yan Cao, Yanjin Hou, Siyu Hou, Yanhua Guo, Jiawei Tian, Xu He   +6 more
doaj   +1 more source

Solving the Optimal Mistuning Problem by Symmetry: A General Framework for Extending Flutter Boundaries in Turbomachines via Mistuning [PDF]

, 1997
A general framework is presented for analyzing and optimizing stability increases due to mistuning. The framework given is model independent and is based primarily on symmetry arguments.
Shapiro, Benjamin
core  

Effects of contact mistuning on shrouded blisk dynamics [PDF]

, 2016
Mistuning commonly refers to non-cyclically symmetric variations in such an otherwise cyclically-symmetric structure. Mistuning in a blisk due to variations in blade materials and geometry have been studied extensively and are known to have a significant
Epureanu, Bogdan Iuliu, Stefano Zucca, Zucca, Stefano, Mainak Mitra, Bogdan I. Epureanu, Mitra, Mainak   +5 more
core   +1 more source

Vibration Localization in Cyclic Mistuned Structure and Its Application to Low-Frequency Broadband Vibration Control of Pipelines

Applied Sciences
This paper proposes a pipeline vibration control method based on the vibration localization energy dissipation principle of cyclic mistuned structure (CMS).
Lihang Yin, Wei Xu, Jian Zhou, Song Liu, Liantao Xiao   +4 more
doaj   +1 more source

Asymptotic and computational analysis of mistuning effects on the dynamics of bladed disks [PDF]

, 2015
Es bien conocido que las pequeñas imperfecciones existentes en los álabes de un rótor de turbomaquinaria (conocidas como “mistuning”) pueden causar un aumento considerable de la amplitud de vibración de la respuesta forzada y, por el contrario, tienen ...
Khemiri, Oualid
core   +1 more source