Machine learning based nominal root stress calculation model for gears with a progressive curved path of contact
| Autor: | Nikola Vukašinović, Damijan Zorko, Uroš Urbas |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0209 industrial biotechnology
Computer science Bioengineering 02 engineering and technology Machine learning computer.software_genre nominal root stress udc:004.85:621.833:519.61 Stress (mechanics) korenska napetost gears 020901 industrial engineering & automation 0203 mechanical engineering Linear regression AdaBoost FEM Artificial neural network business.industry Mechanical Engineering Finite element method strojno učenje Computer Science Applications Random forest Support vector machine zobniki machine learning 020303 mechanical engineering & transports Mechanics of Materials Finite Element Method Path (graph theory) Artificial intelligence business computer random forest metoda končnih elementov |
| Zdroj: | Mechanism and machine theory, vol. 165, 104430, 2021. |
| ISSN: | 0094-114X |
| Popis: | The study aims to investigate the possibility of employing machine learning models in the design of non-involute gears. Such a model would be useful for design calculations of non-standard gears, where there are no available guidelines. The aim is to create a decision-support model accompanying the Finite Element Method (FEM) simulations, from which the data for training was collected. Multiple models for numerical prediction were tested, i.e. linear regression, Support Vector Machine, K-nearest neighbour, neural network, AdaBoost, and random forest. The models were firstly validated with N-fold cross-validation. Further validation was done with new FEM simulations. The results from the simulations and the models were in good agreement. The best-performing ones were random forest and AdaBoost. Based on the validation results, a machine learning constructed model for calculating nominal root stress in gears with a progressive curved path of contact is proposed. The model can be used as an alternative to FEM simulations for determining the nominal root stress in real-time, and is able to calculate the stress for gears with different number of teeth, widths, modules, paths of contact, materials, and loads. Therefore, many combinations of gear geometries can be analysed and the most suitable can be chosen. |
| Databáze: | OpenAIRE |
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