Prediction of contact condition and surface damage by simulating variable friction coefficient and wear

A Mäntylä, J Hintikka, T Frondelius, J Vaara… - Tribology …, 2020 - Elsevier
A simulation method to predict the reliability of clamped metal contacts under cyclic loading
is presented. The main idea is to predict the development of contact condition of a joint by …

[PDF][PDF] Thermomechanical fatigue analysis of cylinder head

A Leppänen, A Kumpula… - Rakenteiden …, 2017 - rakenteidenmekaniikka.journal.fi
The finite element simulation of a cylinder head has been carried out with Abaqus Standard
using Z-mat material model, with thermal boundary conditions coming from combined …

Reduction of testing effort for fatigue tests: Application of Bayesian optimal experimental design

C Frie, A Kolyshkin, S Mordeja… - Fatigue & Fracture of …, 2023 - Wiley Online Library
S‐N curve parameter determination is a time‐and cost‐intensive procedure. A standardized
method for simultaneously determining all S‐N curve parameters with minimum testing effort …

Wärtsilä digital design platform

J Könnö, H Tienhaara… - Rakenteiden …, 2017 - rakenteidenmekaniikka.journal.fi
We discuss a methodology for systematically using an Simulation Process and Data
Management (SPDM) platform in product development. The purpose of this paper is to get …

[PDF][PDF] Brief review on high-cycle fatigue with focus on non-metallic inclusions and forming

J Vaara, A Mäntylä… - Rakenteiden …, 2017 - rakenteidenmekaniikka.journal.fi
Professor Y. Murakami has been a dominant figure in the field of fatigue, pinpointing the
most important things for research. However, in order to further improve the prediction …

[PDF][PDF] Medium speed engine crankshaft analysis

I Väisänen, A Mäntylä, A Korpela… - Rakenteiden …, 2017 - rakenteidenmekaniikka.journal.fi
This article describes the overview of crankshaft analysis of a medium speed diesel engine.
Crankshaft analysis includes static analysis, crankshaft dynamics, bearing analysis, gear …

Bayesian analysis of critical fatigue failure sources

J Vaara, M Väntänen, P Kämäräinen… - International journal of …, 2020 - Elsevier
A novel approach for inferring the underlying non-metallic inclusion distribution from fatigue
test fractography is presented. It is shown that the non-metallic inclusion size distribution …

[PDF][PDF] Large bore engine connecting rod fretting analysis

A Mäntylä, J Göös, A Leppänen… - Rakenteiden …, 2017 - rakenteidenmekaniikka.journal.fi
A detailed contact analysis of a large connecting rod was performed to evaluate the fretting
risk in the big end. Simulation was carried out in Abaqus considering all relevant boundary …

[PDF][PDF] Nodular cast iron ONERA fatigue model fitting

A Kumpula, J Vaara… - Rakenteiden …, 2017 - rakenteidenmekaniikka.journal.fi
ONERA fatigue model identification has been carried out for the nodular cast iron material.
Selected fatigue model considers mean stress effect, temperature dependency, multiaxiality …

History of structural analysis & dynamics of Wärtsilä medium speed engines

T Frondelius, H Tienhaara, M Haataja - 2018 - oulurepo.oulu.fi
This paper opens up the history of structural analysis and dynamics simulations of Wärtsilä
engines. It cites already published articles and theses with some backgrounds information. It …