Vuotikka, A.-J., Jokinen, M., Halla-aho, P., Aho, J., Mäntylä, A., & Frondelius, T. (2020). Finite element method modeling of crankshaft axial impact measurements. Rakenteiden Mekaniikka, 53(2), 85-99. https://doi.org/10.23998/rm.80099
Finite element method modeling of crankshaft axial impact measurements
|Author:||Vuotikka, Antti-Jussi1; Jokinen, Marko1; Halla-aho, Pasi2;|
1Global Boiler Works Oy
|Online Access:||PDF Full Text (PDF, 1.9 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2020120399278
Rakenteiden mekaniikan seura,
|Publish Date:|| 2020-12-03
It has been recently discovered that there is a periodical axial impact phenomenon in a running engine crankshaft. Bending of the shaft causes signiﬁcant extension of the crankshaft and impact to the engine block through the axial thrust bearing. The aim of this work is to study impact-induced energy ﬂuctuations in a complex-shaped Wärtsilä sixteen vee 32 engine crankshaft by using an explicit ﬁnite element method (FEM) during the ﬁrst 25 ms after impact. Using the FEM allows us to study real components used in industry, and analyze their dynamics in the transient phase. In conclusion, we found interesting results that can be used as guidelines for a full-scale crankshaft measurement instrumentation plan. The full-scale measurements will be performed later in the Wärtsilä Oy facility at Vaasa, Finland. The main ﬁnding is that a substantive amount of energy is trapped in the head region and the ﬁrst two crank pins of the crankshaft, which can aﬀect crankshaft durability regarding high-cycle fatigue.
|Pages:||85 - 99|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
214 Mechanical engineering
The authors would like to acknowledge the financial support of Business Finland (formerly
Tekes) in the form of a research project WIMMA Dnro 1566/31/2015.
© 2020 The Authors. Open access under license CC BY 4.0.