Zobrazeno 1 - 10
of 212
pro vyhledávání: '"Hideyuki AZEGAMI"'
Publikováno v:
Mechanical Engineering Journal, Vol 10, Iss 5, Pp 23-00249-23-00249 (2023)
A method for finding the optimum distribution of the slit density in a shoe upper, such that the contact pressure with the foot approaches an ideal distribution is presented in this paper. In a shoe upper made of warp knitting, slits are made by disc
Externí odkaz:
https://doaj.org/article/0904db9397c64e0493ae17ad3dcd6414
Autor:
Hideyuki AZEGAMI
Publikováno v:
Mechanical Engineering Journal, Vol 9, Iss 6, Pp 22-00266-22-00266 (2022)
A class of optimization problems which are formulated using solutions to boundary value problems of partial differential equations (PDEs) as equality constraints is called PDE-constrained optimization problems. Specifically, when the variable in the
Externí odkaz:
https://doaj.org/article/fc835c9db10946cc846ff445ea964f9b
Autor:
Takuya HAYASHI, Hideyuki AZEGAMI
Publikováno v:
Mechanical Engineering Journal, Vol 9, Iss 1, Pp 21-00250-21-00250 (2021)
In this study, a formulation of the inverse problem to identify the shape of a hyperelastic body in which the vibration mode is similar to the swimming mode of a fish is presented. This research aims to demonstrate the possibility of creating a fish
Externí odkaz:
https://doaj.org/article/f2193ee37cfb4df9af6ba2dbc69a8b70
Publikováno v:
Mechanical Engineering Journal, Vol 9, Iss 1, Pp 21-00275-21-00275 (2021)
This paper presents a method for reducing the computational time required to solve the shape optimization problem of a hyperelastic body. In a previous report, the authors presented a method for applying a model order reduction technique based on the
Externí odkaz:
https://doaj.org/article/df81a1e656ed495aaa4638c403ccb88e
Publikováno v:
Mechanical Engineering Journal, Vol 8, Iss 5, Pp 21-00200-21-00200 (2021)
This study presents methods to develop a three-dimensional numerical foot model and to identify the loading condition that is used to design a stable sole for running shoes. In a previous study, the authors proposed a method to optimize the shape of
Externí odkaz:
https://doaj.org/article/e2afa21be85245aa847512881c92fc68
Autor:
Hideyuki AZEGAMI, Shinjiro ONO, Kenzen TAKEUCHI, Takahiro KIKUCHI, Yukihiro MICHIWAKI, Keigo HANYU, Tetsu KAMIYA
Publikováno v:
Journal of Biomechanical Science and Engineering, Vol 17, Iss 1, Pp 21-00254-21-00254 (2021)
This paper presents a formulation to identify muscle activities from the variation in shapes of organs during swallowing. We assume that each organ consists of a three-dimensional hyperelastic body, and the contraction movement of the muscle is cause
Externí odkaz:
https://doaj.org/article/69c8d90ae1984f68bbcc90f1e0912fc9
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 87, Iss 900, Pp 21-00138-21-00138 (2021)
This paper proposes a solution to a multi-material robust topology optimization problem of density type considering material uncertainties based on H1 gradient method. A material interpolation with respect to the density is introduced using the ratio
Externí odkaz:
https://doaj.org/article/b33024051d0d4f37830c6a96c41168ff
Publikováno v:
Journal of Biomechanical Science and Engineering, Vol 3, Iss 3, Pp 399-410 (2008)
This paper investigated buckling phenomena of the spine induced by the growth of vertebral bodies that have potential to cause idiopathic scoliosis. In the previous study, we presented a hypothesis that idiopathic scoliosis is a buckling phenomena in
Externí odkaz:
https://doaj.org/article/fa1812305b4e4978acb383743332f63f
Autor:
Han SUN, Hideyuki AZEGAMI
Publikováno v:
Nihon Kikai Gakkai ronbunshu, Vol 81, Iss 830, Pp 15-00293-15-00293 (2015)
The present paper describes the numerical results by the finite-element method of unstable phenomena of the spine induced by the growth of vertebral bodies in order to investigate the cause of the idiopathic scoliosis. In the previous study, through
Externí odkaz:
https://doaj.org/article/7b59840719f947df848fd1728bb3a87a
Autor:
Han SUN, Hideyuki AZEGAMI
Publikováno v:
Journal of Biomechanical Science and Engineering, Vol 10, Iss 2, Pp 14-00315-14-00315 (2015)
The present paper presents the numerical results of a finite-element analysis of the role of a linear buckling phenomena in the etiology of idiopathic scoliosis. In a previous study, we assumed that idiopathic scoliosis is a buckling phenomenon induc
Externí odkaz:
https://doaj.org/article/a0724a0d8ce64869862ca0bf1c649f03