| contributor author | Firrone, Christian M. | |
| contributor author | Battiato, Giuseppe | |
| contributor author | Epureanu, Bogdan I. | |
| date accessioned | 2019-02-28T11:11:45Z | |
| date available | 2019-02-28T11:11:45Z | |
| date copyright | 10/31/2017 12:00:00 AM | |
| date issued | 2018 | |
| identifier issn | 1555-1415 | |
| identifier other | cnd_013_01_011011.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4253692 | |
| description abstract | The complex architecture of aircraft engines requires demanding computational efforts when the dynamic coupling of their components has to be predicted. For this reason, numerically efficient reduced-order models (ROM) have been developed with the aim of performing modal analyses and forced response computations on complex multistage assemblies being computationally fast. In this paper, the flange joint connecting two turbine disks of a multistage assembly is studied as a source of nonlinearities due to friction damping occurring at the joint contact interface. An analytic contact model is proposed to calculate the local microslip based on the different deformations that the two flanges in contact take during vibration. The model is first introduced using a simple geometry representing two flanges in contact, and then, it is applied to a reduced finite element model in order to calculate the nonlinear forced response. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Modeling the Microslip in the Flange Joint and Its Effect on the Dynamics of a Multistage Bladed Disk Assembly | |
| type | Journal Paper | |
| journal volume | 13 | |
| journal issue | 1 | |
| journal title | Journal of Computational and Nonlinear Dynamics | |
| identifier doi | 10.1115/1.4037796 | |
| journal fristpage | 11011 | |
| journal lastpage | 011011-10 | |
| tree | Journal of Computational and Nonlinear Dynamics:;2018:;volume( 013 ):;issue: 001 | |
| contenttype | Fulltext | |