Chiara Gastaldi
Polytechnic University of Turin
56 Papers
201 Citations
Chiara Gastaldi is an academic researcher from Polytechnic University of Turin. The author has contributed to research in topics: Damper & Computer science. The author has an hindex of 9, co-authored 48 publications.
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Papers
On the relevance of a microslip contact model for under-platform dampers
Chiara Gastaldi,Muzio Gola +1 more
TL;DR: In this paper, the authors investigate the effect of non-linearities along the normal and tangent of nonconforming contact surfaces on the damper behavior and determine whether introducing these features in the contact model would improve the performance of numerical routines used at the blade-damper design stage.
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Pre-Optimization of Asymmetrical Underplatform Dampers
Chiara Gastaldi,Muzio Gola +1 more
TL;DR: In this article, a numerical coupled optimization of an under-platform damper is presented, where the initial damper mass and geometry have been previously selected (i.e. pre-optimized) in such a way that those parameter combinations leading to undesirable damper behavior are ruled out a-priori.
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Design of dry friction and piezoelectric hybrid ring dampers for integrally bladed disks based on complex nonlinear modes
TL;DR: In this paper, a new passive damper coupling the energy dissipative mechanisms of dry friction and piezoelectric shunting circuit for Integrally Bladed Disks (blisks) is investigated.
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An Experimental Investigation of the Dynamic of a Blade With Two Under-Platform Dampers
TL;DR: In this article, a test rig was designed to accommodate a single turbine blade and two under-platform dampers, where one side of each damper was in contact with a ground support specifically designed to measure two independent forces on the damper.
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Forced response prediction of turbine blades with flexible dampers: the impact of engineering modelling choices
TL;DR: This paper builds on the authors' prior experience with rigid dampers to investigate the peculiarities and challenges of a robust dynamic model of blade-strips systems and develops a series of guidelines which will help the designer assign numerical predictions the proper level of trust.
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