Extension of backlash based dry friction model in simulink and comparison with dahl and lugre models on simulations of blade triple

0508410 - ÚT 2020 RIV CZ eng C - Conference Paper (international conference)
Šnábl, Pavel - Pešek, Luděk - Půst, Ladislav
Extension of backlash based dry friction model in simulink and comparison with dahl and lugre models on simulations of blade triple.
The International Colloquium Dynamics of Machines and Mechanical Systems with Interactions : DYMAMESI 2019. Prague: Institute of Thermomechanics CAS, 2019 - (Kozieň, M.; Zolotarev, I.; Pešek, L.), s. 69-74. ISBN 978-80-87012-70-3.
[DYMAMESI 2019 - Dynamics of Machines and Mechanical Systems with Interactions. Cracow (PL), 05.03.2019-06.03.2019]
Grant - others:AV ČR(CZ) StrategieAV21/3
Program: StrategieAV
Institutional support: RVO:61388998
Keywords : dry friction * Dahl model * LuGre model * Backlash model * simulink
OECD category: Applied mechanics

Behaviour of analytical dry friction model based on SIMULINK. Backlash block with Coulomb friction is compared with Dahl model. The Backlash based model is herein extended to contain velocity-dependent friction characteristic and is compared with LuGre model. All models are used on analytical model of blade triple with mistuned blades and vibration attenuations from first resonant mode of this system are compared. Instability of Dahl and LuGre models for large time-step are shown.
Permanent Link: http://hdl.handle.net/11104/0304784