Faculty Profiles - ISHIHARA Daisuke

Papers - ISHIHARA Daisuke

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Performance Evaluation of Numerical Finite Element Coupled Algorithms for Structure-Electric Interaction Analysis of MEMS Piezoelectric Actuator Reviewed

Ramegowda P., Ishihara D., Niho T., Horie T.

International Journal of Computational Methods 16 ( 7 ) 2019.11

Modeling of cambering in insect’s flapping wings using finite element shell elements Reviewed

Minato Onishi, Daisuke Ishihara

Proceedings of the 38th JSST Annual International Conference on Simulation Technology 271 - 274 4pages 2019.11

Computational control for strongly coupled Piezoelectric-Structure-Interaction Reviewed

Vinay Shankar, Daisuke Ishihara, Prakasha Chigahalli Ramegowda, Rei Takata, Tomoyoshi Horie

Proceedings of the 38th JSST Annual International Conference on Simulation Technology 275 - 278 4pages 2019.11

昆虫羽ばたき飛行の特徴的な翼先端軌跡における流体構造連成現象の役割 Invited

石原大輔

昆虫と自然 ( ニュー・サイエンス社 ) 54 ( 8 ) 32 - 34 2019.07

A novel coupling algorithm for the electric field–structure interaction using a transformation method between solid and shell elements in a thin piezoelectric bimorph plate analysis Reviewed

Ramegowda P., Ishihara D., Niho T., Horie T.

Finite Elements in Analysis and Design 159 33 - 49 2019.07

A pixel modeling of the cambering in insect flapping wings

331 - 332 2019.06

Cycles of triply coupled mechanical contact, current, and thermal conduction phenomena during resistance spot welding Reviewed

Horie T., Niho T., Hayashi N., Ishihara D.

Welding in the World 63 ( 3 ) 701 - 713 2019.05

薄く柔軟な複合材圧電バイモルフのソリッド圧電‐シェル逆圧電分離反復型解法

石原大輔, プラカシャチガハリラメゴウダ, 高田黎, 二保知也, 堀江知義

計算工学講演会論文集 24 E-10-01 (2pages) 2019.05

3枚重ね抵抗スポット溶接の構造・電流・熱伝導3 連成現象および接合強度におよぼす鋼板材質・板組の影響

二保知也, 金城喜己, 石原大輔, 堀江知義

計算工学講演会論文集 24 E-12-01 (2pages) 2019.05

A Computational Study on the Fluid-Structure Interaction Mechanism in Insect Flapping Wings Reviewed

Daisuke Ishihara

Proceedings of The International Conference on Computational & Experimental Engineering and Sciences 21 ( 3 ) 66 - 66 2019.05

Proposal of Finite Element Method for Structure-Piezoelectric-Circuit Coupled Problems

TAKATA Rei, ISHIHARA Daisuke, RAMEGOWDA Prakasha Chigahalli, NIHO Tomoya, HORIE Tomoyoshi

The Proceedings of The Computational Mechanics Conference ( The Japan Society of Mechanical Engineers ) 2019 ( 0 ) 2019.01

Language：Japanese Publishing type：Research paper (other academic)

A piezoelectric bimorph for actuators and sensors is usually connected to a circuit. The piezoelectric bimorph is affected by charge from the circuit in its mechanical behavior, and it also plays a role of a capacitor in the circuit. Therefore, the coupling of the piezoelectric bimorph and circuit as well as the structure - piezoelectric coupling should be taken into account in the design process of the actuators and sensors using the piezoelectric bimorph. Here, the novel finite element analysis method is proposed for this structure – piezoelectric – circuit coupled problem. Structural and piezoelectric analyses are performed using the finite element method with the shell and solid elements, respectively. Circuit analysis is a single degree of freedom. The coupled equations for the piezoelectric – circuit coupling is proposed from the continuous conditions for the electric potential and charge. The coupled algorithm is based on the block Gauss-Seidel method and a novel transformation method between the solid and shell variables. In the structural analysis, the rule of mixtures about the bending rigidity and the mass is used. In the piezoelectric analysis, the pseudo-piezoelectric evaluation method is used.

DOI： 10.1299/jsmecmd.2019.32.276

CiNii Article

Other Link： https://ci.nii.ac.jp/naid/130007817403

Pseudoelastic mesh–moving using a general scenario of the selective mesh stiffening Invited Reviewed

Ishihara Daisuke, Goto Atsushi, Onishi Minato, Niho Tomoya, Horie Tomoyoshi

日本シミュレーション学会英文誌 6 ( 1 ) 67 - 74 2019.01

Deformation effect on triply coupled analysis of contact deformation, electric current and thermal conduction for resistance spot welding

NIHO Tomoya, YI Xinyu, ISHIHARA Daisuke, HORIE Tomoyoshi

The Proceedings of The Computational Mechanics Conference ( The Japan Society of Mechanical Engineers ) 2019 ( 0 ) 2019.01

Language：Japanese Publishing type：Research paper (other academic)

Resistance spot welding is widely used in manufacturing industries such as automotive industry. In this paper, we propose electric current analysis and thermal conduction analysis with deformation effect for resistance spot welding analysis. Effect of deformation on bonding strength and triply coupled effect for contact deformation, electric current and thermal conduction are discussed.

DOI： 10.1299/jsmecmd.2019.32.227

CiNii Article

Other Link： https://ci.nii.ac.jp/naid/130007817379

Partitioned method of insect flapping flight for maneuvering analysis Reviewed

Onishi M., Ishihara D.

CMES - Computer Modeling in Engineering and Sciences 121 ( 1 ) 145 - 175 2019.01

A coupled finite element analysis approach combining in-house and general-purpose codes Reviewed

Horie T., Niho T., Ishihara D.

IUTAM Bookseries 35 117 - 129 2019.01

Solid piezoelectric - shell inverse piezoelectric partitioned analysis method for thin piezoelectric bimorph with conductor layers Reviewed

TAKATA Rei, ISHIHARA Daisuke, Ramegowda Prakasha Chigahalli, NIHO Tomoya, HORIE Tomoyoshi

Transactions of the Japan Society for Computational Engineering and Science ( JAPAN SOCIETY FOR COMPUTATIONAL ENGINEERING AND SCIENCE ) 2019 ( 0 ) 20190011 - 20190011 2019.01

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)

Piezoelectric bimorph for actuators and sensors is usually thin and includes conductor layers such as the electrode and the shim plate. Therefore, this study deals with the coupled piezoelectric and inverse-piezoelectric analysis of thin piezoelectric bimorph with the conductor layers. Solid elements can describe the various types of distributions of electric potential along the thickness, while shell elements are more appropriate to analyze the thin structures. Therefore, instead of using piezoelectric solid elements or piezoelectric shell elements for both the piezoelectric and inverse-piezoelectric analyses, the solid and shell elements are used to simulate the electrical and structural fields, respectively. The coupled algorithm is based on the block Gauss-Seidel method and the transformation method between the solid and shell variables. In the structural analysis, the rule of mixtures for the bending rigidity and the mass is used. A pseudo-piezoelectric evaluation method for the conductor is proposed in order to use the existing programs for the piezoelectric and inverse-piezoelectric analyses without any modification. Finally, it is demonstrated that the proposed method shows very accurate potential distributions in the actuator and sensor modes of the thin piezoelectric bimorph with the conductor layers.

DOI： 10.11421/jsces.2019.20190011

Kyutacar

Scopus

CiNii Article

Other Link： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85068835345&origin=inward

A pixel modeling of the cambering in insect flapping wings

Onishi Minato, Ishihara Daisuke, Niho Tomoya, Horie Tomoyoshi

NCTAM papers, National Congress of Theoretical and Applied Mechanics, Japan ( National Committee for IUTAM ) 65 ( 0 ) 2019.01

Language：Japanese Publishing type：Research paper (other academic)

The cambering in the insect's flapping wing plays an important role for the improvement of the aerodynamic performance. In this study, the pixel model is proposed for the cambering in the insect flapping wings. In the proposed model, the role of the vein of membrane is given by the pseudo elastic materials The fundamental performance of the proposed model is demonstrated in the comparison with the previous model using the beam and shell element.

DOI： 10.11345/japannctam.65.0_331

CiNii Article

Other Link： https://ci.nii.ac.jp/naid/130008100946

Finite element modeling of flexible piezoelectric energy harvester operating in air

RAMEGOWDA Prakasha Chigahalli, ISHIHARA Daisuke, TAKATA Rei, NIHO Tomoya, HORIE Tomoyoshi

計算力学講演会講演論文集 ( 一般社団法人日本機械学会 ) 2019 ( 0 ) 2019.01

Language：Japanese Publishing type：Research paper (other academic)

Piezoelectric energy harvesting from the mechanical vibrations has attracted considerable research interest in the last decade. This work presents a finite element modeling of forced vibration of flexible piezoelectric devices (FPED). The successful design of the FPED depends on the identification of the optimal geometry, material configurations, and loading conditions to achieve maximum power efficiency at a specific band of excitation frequencies. A piezoelectric energy harvesting (PEH) process from the mechanical vibration takes the form of two-way coupling between piezoelectric and inverse piezoelectric effect, while the piezoelectric energy harvesting from the ocean waves takes the form of three-way coupling between fluid, piezoelectric, and inverse piezoelectric effects. There are some experimental and theoretical studies about piezoelectric energy harvesting from the mechanical vibrations as-well as ocean waves in literature. Meantime, performing design optimization via experimental studies is very expensive. An accurate FE modeling of the coupling effects between the fluid, piezoelectric, and inverse piezoelectric effect will reduce the cost-effective design optimization and increase the energy efficiency of the PEH. In the present study, the FE analysis of FEPD is presented. The result obtained with the FE model is compared with the experimental model reported in the literature.

DOI： 10.1299/jsmecmd.2019.32.279

CiNii Article

Other Link： https://ci.nii.ac.jp/naid/130007817401

Role of fluid-structure interaction in generating the characteristic tip path of a flapping flexible wing Reviewed

Ishihara D.

Physical Review E 98 ( 3 ) 2018.09

A partition model for the computer simulation of insect flight maneuvers Reviewed

24 - 27 4pages 2018.09

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Papers - ISHIHARA Daisuke