Results 21 to 30 of about 11,806 (306)
An Improved Circumferential Fourier Fit (CFF) Method for Blade Tip Timing Measurements
Applied Sciences, 2020 Rotating blade vibration measurements are very important for any turbomachinery research and development program. The blade tip timing (BTT) technique uses the time of arrival (ToA) of the blade tip passing the casing mounted probes to give the blade ...
Zhibo Liu +5 more
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Blade Vibration on Centrifugal Compressors: Blade Response to Different Excitation Conditions [PDF]
Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; Process Industries, 1985 Results and analysis of blade vibration measurements on a high pressure ratio / high mass flow centrifugal compressor made with strain gages and using multichannel telemetry are described for compressors with 3 different types of vaned diffusers. Considerable high frequency blade excitation and vibration of the shallow region near the impeller outlet ...
Haupt, U., Bammert, K., Rautenberg, M.
openaire +2 more sources
Analytical Formulation of the Jacobian Matrix for Non-linear Calculation of the Forced Response of Turbine Blade Assemblies with Wedge Friction Dampers [PDF]
, 2006 A fundamental issue in turbomachinery design is the dynamical stress assessment of turbine blades. In order to reduce stress peaks in the turbine blades at engine orders corresponding to blade natural frequencies, friction dampers are employed.
Gola M.M +4 more
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Band Saw Blade Crack before and after Comparison and Analysis of Experiments (2)
MATEC Web of Conferences, 2016 Based on MJ3310 woodworking band saw machine as the research object, under the no-load and load of Vib system vibration signal acquisition, processing and analysis software of band saw blade transverse vibration test and the signal acquisition and ...
Gao Jin-gui +5 more
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Nihon Kikai Gakkai ronbunshu, 2018 Selected from various eigenmodes of blading, nodal diameter κ= 0 and κ= 1 are both related to shaft torsional and/or axial vibration and shaft bending vibrations respectively.
Hiroyuki FUJIWARA +3 more
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Hydraulic optimization design of centrifugal pumps aiming at low vibration noise
AIP Advances, 2022 In order to reduce the vibration noise generated by the centrifugal pump in the working process and improve the working efficiency of the centrifugal pump, the sound field numerical calculation of IS80-65-160 single-stage single-suction centrifugal pump ...
Yuqin Wang +4 more
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A Torsional Vibration Measurement Method for Rotating Blades Based on Blade Tip Timing
Shock and Vibration, 2021 During the working process of the turbine, some types of faults can cause changes in the vibration characteristics of the blades. The real-time vibration monitoring of the blades is of great significance to the stable operation and state-based ...
Haonan Guo +6 more
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Aerospace, 2023 Underplatform dampers (UPDs), a type of dry friction damper, are commonly used for vibration reduction of turbine blades. This study investigated the effect of UPDs on the forced torsional vibration response of turbine blades within a multi-blade system.
Yanan Wu +5 more
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Study on influence of crack on the blade status using FBGs
Photonic Sensors, 2017 The status detection for rotating parts is difficult since the sensor is influenced by the rotation in the inflammable, explosive, and strong magnetic environment.
Gang Xu +5 more
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Dynamic Response of a Composite Fan Blade Excited Instantaneously by Multiple MFC Actuators
Aerospace, 2022 The vibration characteristics of a composite fan blade are much more complex than those of a solid titanium fan blade due to the anisotropic material properties and complex excitations coming from unsteady flow and mechanically induced vibration. In this
Yong Chen +4 more
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