Imperial College London


Faculty of EngineeringDepartment of Mechanical Engineering

Research Fellow



+44 (0)20 7594 2243l.salles Website




Mr Peter Higgs +44 (0)20 7594 7078




556City and Guilds BuildingSouth Kensington Campus






BibTex format

author = {Saeed, Z and Jenovencio, G and Arul, S and Blahoš, J and Sudhakar, A and Pesaresi, L and Yuan, J and El, Haddad F and Hetzler, H and Salles, L},
doi = {10.1007/978-3-030-12391-8_27},
pages = {209--212},
title = {A Test-Case on Continuation Methods for Bladed-Disk Vibration with Contact and Friction},
url = {},
year = {2020}

RIS format (EndNote, RefMan)

AB - © 2020, Society for Experimental Mechanics, Inc. Bladed-disks in turbo-machines experience harsh operating conditions and undergo high vibration amplitudes if not properly damped. Friction at the blade-to-blade or blade-to-disk interfaces plays a key role in dampening the high amplitudes. Due to the inherent complexity of these structures and non-linearities introduced by the friction joints, accurate response prediction becomes very difficult. There are variety of methods in the literature to predict non-linear vibration due to contact friction. However, their application to the bladed-disks remains limited. Furthermore, there are not many 3D realistic test-cases in the open literature for testing those methods and serve as a benchmark. A bladed-disk representative of a real turbine is presented as an open numerical test-case for the research community. It is characterized by a blade root joint and a shroud joint. The bladed-disk sector is meshed in different ways along with component mode synthesis (CMS) model order reduction for onward non-linear computations. The steady-state solution is obtained by multi-Harmonic Balance method and then continuation method is employed to predict the non-linear frequency response. Thus, it can serve as a case for testing previous and new methods as well as a benchmark for comparative studies.
AU - Saeed,Z
AU - Jenovencio,G
AU - Arul,S
AU - Blahoš,J
AU - Sudhakar,A
AU - Pesaresi,L
AU - Yuan,J
AU - El,Haddad F
AU - Hetzler,H
AU - Salles,L
DO - 10.1007/978-3-030-12391-8_27
EP - 212
PY - 2020///
SN - 2191-5644
SP - 209
TI - A Test-Case on Continuation Methods for Bladed-Disk Vibration with Contact and Friction
UR -
ER -