Simulation analysis method and system for dynamic response of three-dimensional blade tip gap of crack-containing blade

Simulation analysis method and system for dynamic response of three-dimensional blade tip gap of crack-containing blade

The invention discloses a dynamic response simulation analysis method and system for a three-dimensional blade tip gap of a crack-containing blade, and the method comprises the steps: enabling a crack to be equivalent to a radial extension spring of the blade for the radial vibration of the blade, a...

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Hauptverfasser: HUANG XIN, ZHANG XIAODONG, DAI FEI, XIONG YIWEI, FAN BOCHAO
Format: Patent
Sprache:chi ; eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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creator HUANG XIN
ZHANG XIAODONG
DAI FEI
XIONG YIWEI
FAN BOCHAO
description The invention discloses a dynamic response simulation analysis method and system for a three-dimensional blade tip gap of a crack-containing blade, and the method comprises the steps: enabling a crack to be equivalent to a radial extension spring of the blade for the radial vibration of the blade, and calculating the inherent frequency and vibration mode equation of the radial vibration of the blade; aiming at blade bending vibration, enabling the crack to be equivalent to a torsion spring and an extension spring in the width/thickness direction of the blade, and calculating an inherent frequency of the blade bending vibration and a vibration mode equation of displacement and a section corner caused by bending; a uniform-section torsion blade with penetrating cracks at the tail edge is used as a research object, according to the Hamiltonian principle, a dynamical model of the blade with the cracks is established in combination with a Galerkin method, the dynamical model is solved, and the dynamic response of
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language chi ; eng
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subjects CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
title Simulation analysis method and system for dynamic response of three-dimensional blade tip gap of crack-containing blade
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