Results 1 to 10 of about 186,953 (245)

Multi-scale shape optimization method for designing a macrostructure with periodic-microstructures using inverse homogenization method and H1 gradient method

open access: yesNihon Kikai Gakkai ronbunshu, 2019
It is known that mechanical behavior of a composite structure is strongly influenced by not only the shape and properties of the macroscopic region but also the shape and properties of the micro region.
Takumi KATO   +2 more
doaj   +2 more sources

Simultaneous shape and topology optimization method based on the H1 gradient method for creating light weight plate and shell structures

open access: yesNihon Kikai Gakkai ronbunshu, 2018
In this paper, we present a simultaneous optimization method of shape and topology for designing a light-weight plate and shell structure. The free-form optimization method for shells and SIMP method are respectively employed for shape and topology ...
Hirotaka NAKAYAMA, Masatoshi SHIMODA
doaj   +2 more sources

Micropore shape optimization for natural vibration design of porous structures

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In this paper, we present a shape optimization method for periodic microstructures to maximize a specified vibration eigenvalue of a porous macrostructure.
Junpei FUJITA, Masatoshi SHIMODA
doaj   +1 more source

Boundary shape identification method for density based topology optimization

open access: yesNihon Kikai Gakkai ronbunshu, 2022
Topology optimization is an advanced design method that is used to generate lightweight and high-performance structures by determining the material distribution.
Yoshinori NISHIO, Yang LIU, Nagato ONO
doaj   +1 more source

Concurrent optimization method of shape and topology for natural vibration problem of shell structures

open access: yesNihon Kikai Gakkai ronbunshu, 2023
In this paper, a concurrent optimization method of shape and topology for natural vibration design of shell structures is presented. The fundamental vibration eigenvalue is maximized under volume constraints for shape and topology optimization.
Masatoshi SHIMODA, Ryo TSUTSUMI
doaj   +1 more source

Shape design optimization of initial stressed bimetal composite structures for controlling vibrational eigenvalues

open access: yesNihon Kikai Gakkai ronbunshu, 2022
By combining different material properties of two metals, bimetals have been widely designed and manufactured as parts or accessories in automobile, aircraft, marine engineering for providing specific requirements.
Jin-Xing SHI   +2 more
doaj   +1 more source

Shape optimization of preform design for minimizing plastic work of forging process

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In this study, we present a parameter-free shape optimization method for preform design in forging process. The objective functional is the total plastic work of forging process.
Masahiro KITAGAWA   +2 more
doaj   +1 more source

Shape optimization for suppressing coherent structure of two-dimensional open cavity flow

open access: yesJournal of Fluid Science and Technology, 2021
This paper presents an optimal design obtained as a shape optimization problem in a domain with a singular point. For shape optimization, the eigenvalue in Snapshot Proper Orthogonal Decomposition (Snapshot POD) is defined as a cost function.
Takashi NAKAZAWA   +2 more
doaj   +1 more source

Concurrent multi-scale shape optimization for micro and macro shape design of structures

open access: yesNihon Kikai Gakkai ronbunshu, 2021
In this study, we propose a novel shape optimization method for designing micro- and macro-structures concurrently. We assume the macro-structure consists of several arbitrary domains, which have different periodic micro-structures.
Minami FUJIOKA, Masatoshi SHIMODA
doaj   +1 more source

Optimization of slit density distribution in shoe upper made of warp knitting to optimize the contact pressure

open access: yesMechanical Engineering Journal, 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.
Mai NONOGAWA   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy