• Title/Summary/Keyword: Finite Elemnet Method

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Analysis for The Characteristic Thrust Force in 2 Phase 8 Pole LPM Using Finite Elemnet Method (유한요소법을 이용한 2상8극형 LPM의 구동방식에 따른 정추력해석)

  • Lee, Eun-Woong;Cho, Hyun-Kil;Kim, Sung-Heon;Kim, Il-Jung;Lim, Su-Saeng
    • Proceedings of the KIEE Conference
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    • 1997.07a
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    • pp.238-240
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    • 1997
  • In two case, LPM driving by full step or microstep, we simulated the thrust force in LPM using finite element method and measured the force by experimental equipment. And We analyze the harmonics of trust force by Fast Fourier Transform. We proposed the method, which can reduced harmonic force by microstep driving.

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A Study on the Stress and Strain Analysis of Human Muscle Skeletal Model in Kendo Three Typical Attack Motions (세 가지 주요 검도 공격 동작에서의 근-골격계 응력과 번형률 해석에 관한 연구)

  • Lee, Jung-Hyun;Lee, Young-Shin
    • Journal of the Korean Society for Precision Engineering
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    • v.25 no.9
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    • pp.126-134
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    • 2008
  • Kendo is one of the popular sports in modem life. Head, wrist and thrust attack are the fast skill to get a score on a match. Human muscle skeletal model was developed for biomechanical study. The human model was consists with 19 bone-skeleton and 122 muscles. Muscle number of upper limb, trunk and lower limb part are 28, 60, 34 respectively. Bone was modeled with 3D beam element and muscle was modeled with spar element. For upper limb muscle modelling, rectus abdominis, trapezius, deltoideus, biceps brachii, triceps brachii muscle and other main muscles were considered. Lower limb muscle was modeled with gastrocenemius, gluteus maximus, gluteus medius and related muscles. The biomechanical stress and strain analysis of human muscle was conducted by proposed human bone-muscle finite element analysis model under head, wrist and thrust attack for kendo training.

Development on Human Muscle Skeletal Model and Stress Analysis of Kumdo Head Hitting Motion (검도 머리치기 동작의 인체 근골격 모델개발 및 응력해석)

  • Lee, Jung-Hyun;Lee, Se-Hoon;Lee, Young-Shin
    • Journal of the Korean Society for Precision Engineering
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    • v.24 no.11
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    • pp.116-125
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    • 2007
  • Human muscle skeletal model was developed for biomechanical study. The human model was consists with 19 bone-skeleton and 122 muscles. Muscle number of upper limb, trunk and lower limb part are 28, 60, 34 respectively. Bone was modeled with 3D beam element and muscle was modeled with spar element. For upper limb muscle modelling, rectus abdominis, trapezius, deltoideus, biceps brachii, triceps brachii muscle and other main muscles were considered. Lower limb muscle was modeled with gastrocenemius, gluteus maximus, gluteus medius and related muscles. The biomechanical stress and strain analysis of human was conducted by proposed finite element analysis model under Kumdo head hitting motion. In this study structural analysis has been performed in order to investigate the human body impact by Kumdo head hitting motion. As the results, the analytical displacement, stress and strain of human body are presented.