Javascript must be enabled to continue!

Vibration Absorbers for a Mistuned Bladed Disk

Mistuning refers to variations in modal properties of blades due to manufacturing tolerances. This can result in the amplification of a blade vibratory amplitude. This paper deals with the design of vibration absorbers for a mistuned bladed disk. First, the basic theory is established for undamped vibration absorbers using a single mode model for each blade. Then, it is extended to include a multiple mode model of each blade and disk dynamics. The impact of mistuning on the bladed disk vibration is examined in the presence of undamped absorbers via Monte Carlo simulations. It is found that vibration absorbers can be an effective method to counter the detrimental effects of mistuning.

American Society of Mechanical Engineers

Alok Sinha

Volume 7A: Structures and Dynamics

2016

Title: Vibration Absorbers for a Mistuned Bladed Disk

Description:

Mistuning refers to variations in modal properties of blades due to manufacturing tolerances.

This can result in the amplification of a blade vibratory amplitude.

This paper deals with the design of vibration absorbers for a mistuned bladed disk.

First, the basic theory is established for undamped vibration absorbers using a single mode model for each blade.

Then, it is extended to include a multiple mode model of each blade and disk dynamics.

The impact of mistuning on the bladed disk vibration is examined in the presence of undamped absorbers via Monte Carlo simulations.

It is found that vibration absorbers can be an effective method to counter the detrimental effects of mistuning.

Back

A new reduced order modeling technique for nonlinear vibration analysis of mistuned bladed disks with shrouds is presented. It has been shown in the literature that the loss of cyc...

Parametric Dynamics of Mistuned Bladed Disk

The mistuning of bladed disk comes from manufacturing tolerances and in-service wear and tear. Consequently the cyclic symmetry has been destroyed by mistuning, even small mistunin...

Maximum Mistuned Vibration Amplitude With Aerodynamic Damping

Mistuning can dramatically increase the forced response of a bladed disk. In the case of damping coming from aerodynamic effects the situation is more complicated because the value...

Vibration of Bi-Periodic Bladed Disk

The dynamic behavior of bi-periodic bladed disk has been studied systematically. Bi-periodicity in bladed disk means that two types of structural subassemblies, alternating in circ...

Feasibility Study of Heat Transfer Enhancement in Solar Photovoltaic-Thermal Systems Using FDM Generated Novel Curved Thermal Absorbers

Abstract Global warming and climate change are the major global concerns in the recent past as far as power generation is concerned. Renewable energy power generatio...

Experimental Investigation of the Savonius Turbine for Low-Speed Hydrokinetic Applications in Small Rivers

The current study aims to investigate the power performance of 2-bladed and 3-bladed Savonius turbine rotors in a water channel to simulate a low river flow speed. The results were...

Variable stiffness type magnetic vibration absorber to control the vibration of beam structure

Vibration absorbers are frequently used to control and minimize excess vibration in structural systems. Dynamic vibration absorbers are used to reduce undesirable vibration in many...

Snapshot of a magnetohydrodynamic disk wind

Abstract The formation of astrophysical objects of different nature and size, from black holes to gaseous giant planets, involves a disk-jet system, where the disk drives t...

Email:
Password:

Email:

Vibration Absorbers for a Mistuned Bladed Disk

Related Results