Hee-Sun Choi

Dr. Hee-Sun Choi

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Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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14 December 2020 in Multibody System Dynamics
Verified
Journal Article
Closed access
PDF file
HCHee-Sun Choi
Hee-Sun Choi
JAJunmo An
Junmo An
SHSeongji Han
Seongji Han
Jin-Gyun KimJin-Gyun Kim
Jin-Gyun Kim
Jae-Yoon JungJae-Yoon Jung
Jae-Yoon Jung
JCJin Hwan Choi
Jin Hwan Choi

2 September 2019 in arXiv
Verified
Preprint
Open access
PDF file
HCHee-Sun Choi
Hee-Sun Choi
JAJunmo An
Junmo An
Jin-Gyun KimJin-Gyun Kim
Jin-Gyun Kim
Jae-Yoon JungJae-Yoon Jung
Jae-Yoon Jung
JCJuhwan Choi
Juhwan Choi
JCJin Hwan Choi
Jin Hwan Choi
In this paper, a machine learning-based simulation framework of general-purpose multibody dynamics is introduced. The aim of the framework is to generate a well-trained meta-model of multibody dynamics (MBD) systems. To this end, deep neural network (DNN) is employed to the framework so as to construct data-based meta-model representing multibody systems. Constructing well-defined training data set with time variable is essential to get accurate and reliable motion data such as displacement, velocity, acceleration, and forces. As a result of the introduced approach, the meta-model provides motion estimation of system dynamics without solving the analytical equations of motion. The performance of the proposed DNN meta-modeling was evaluated to represent several MBD systems.