Intelligent Detection of Cracks Based on Integrated Modeling of Multibody and Finite Elements

Research Project

Project/Area Number	15K17995
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Multi-year Fund
Research Field	Dynamics/Control
Research Institution	Nihon University (2016-2017) Nagoya University (2015)
Principal Investigator	AKI Masahiko 日本大学, 理工学部, 助教 (60560480)
Project Period (FY)	2015-04-01 – 2018-03-31
Project Status	Completed (Fiscal Year 2017)
Budget Amount *help	¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000) Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords	ロータダイナミクス / クラック / 異常検知 / マルチボディダイナミクス / 機械力学 / 有限要素法
Outline of Final Research Achievements	In order to detect cracks occurring in a rotor system, physical models for predicting the vibration characteristics were proposed. One is an integrated multibody - finite element model. Another is a transfer function procedure. Availability of these models for calculating the vibration characteristics of crack occurring were examined. Also, in order to detect cracks occurring in a rotor system, a utilization of machine learning was considered.