A digital twin for ship structures—R&D project in Japan

Authors: Masahiko Fujikubo, Tetsuo Okada, Hideaki Murayama, Hidetaka Houtani, Naoki Osawa, Kazuhiro Iijima, Kunihiro Hamada, Kimihiro Toh, Masayoshi Oka, Shinichi Hirakawa, Kenichi Shibata, Tetsuro Ashida, Toshiro Arima, Yoshiteru Tanaka, Akira Tatsumi, Takaaki Takeuchi, Taiga Mitsuyuki, Kohei Mikami, Makito Kobayashi, Yusuke Komoriyama, Chong Ma, Xi Chen, Hiroshi Ochi, Rei Miratsu

Source: Data-Centric Engineering, Vol 5 (2024)

Subject Terms: data assimilation, digital twin, hull monitoring, maritime industry, ship structure, Engineering (General). Civil engineering (General), TA1-2040

File Description: electronic resource

Relation: https://www.cambridge.org/core/product/identifier/S2632673624000030/type/journal_article; https://doaj.org/toc/2632-6736

Access URL: https://doaj.org/article/f9f79c835a4848d385af4014f12b871b

Simultaneous Measurement of Strain and Temperature Distributions Using Optical Fibers with Different GeO2 and B2O3 Doping

Authors: Shinsaku Hisada, Utanori Kodakamine, Daichi Wada, Hideaki Murayama, Hirotaka Igawa

Source: Sensors, Vol 23, Iss 3, p 1156 (2023)

Subject Terms: optical fiber, fiber Bragg grating, distributed measurement, strain and temperature, error propagation, Chemical technology, TP1-1185

File Description: electronic resource

Relation: https://www.mdpi.com/1424-8220/23/3/1156; https://doaj.org/toc/1424-8220

Access URL: https://doaj.org/article/e6eca05ae31742e5b0c8f93f9c6e5d7a

Establishment of damage estimation rules for brittle fracture after cyclic plastic prestrain in steel

Authors: Hiroaki Kosuge, Tomoya Kawabata, Taira Okita, Hideaki Murayama, Shunsuke Takagi

Source: Materials & Design, Vol 185, Iss , Pp - (2020)

Subject Terms: Materials of engineering and construction. Mechanics of materials, TA401-492

File Description: electronic resource

Relation: http://www.sciencedirect.com/science/article/pii/S0264127519306604; https://doaj.org/toc/0264-1275

Access URL: https://doaj.org/article/4611c3c21685447caf0768fc2c7b527c

Lean motion dynamics of a tilting personal mobility with the suspension device equipped with a mechanism converts driver’s actuation force into lean moment

Authors: Kentaro GOTO, Hideaki MURAYAMA

Source: Nihon Kikai Gakkai ronbunshu, Vol 85, Iss 875, Pp 19-00034-19-00034 (2019)

Subject Terms: vehicle dynamics, personal mobility vehicle, suspension, dynamic model, maneuverability, Mechanical engineering and machinery, TJ1-1570, Engineering machinery, tools, and implements, TA213-215

File Description: electronic resource

Relation: https://www.jstage.jst.go.jp/article/transjsme/85/875/85_19-00034/_pdf/-char/en; https://doaj.org/toc/2187-9761

Access URL: https://doaj.org/article/e162436f4e1e4fd9a50f1477a51c477a

A Fiber Optic Doppler Sensor and Its Application in Debonding Detection for Composite Structures

Authors: Fucai Li, Hideaki Murayama, Kazuro Kageyama, Guang Meng, Isamu Ohsawa, Takehiro Shirai

Source: Sensors, Vol 10, Iss 6, Pp 5975-5993 (2010)

Subject Terms: Fiber optic Doppler sensor, guided wave, debonding damage detection, composite structures, Chemical technology, TP1-1185

File Description: electronic resource

Relation: http://www.mdpi.com/1424-8220/10/6/5975/; https://doaj.org/toc/1424-8220

Access URL: https://doaj.org/article/9b9a3fb6689d4cf89cc1d24cbbc8ce4f

Guided Wave and Damage Detection in Composite Laminates Using Different Fiber Optic Sensors

Authors: Fucai Li, Hideaki Murayama, Kazuro Kageyama, Takehiro Shirai

Source: Sensors, Vol 9, Iss 5, Pp 4005-4021 (2009)

Subject Terms: fiber Bragg grating, Doppler effect-based fiber optic sensor, guided wave, composite laminate, damage detection, Chemical technology, TP1-1185

File Description: electronic resource

Relation: http://www.mdpi.com/1424-8220/9/5/4005/; https://doaj.org/toc/1424-8220

Access URL: https://doaj.org/article/7b3c3b2c06ce4935a7256fcdaa4dbcd7

Self-Evaluation of PANDA-FBG Based Sensing System for Dynamic Distributed Strain and Temperature Measurement

Authors: Mengshi Zhu, Hideaki Murayama, Daichi Wada

Source: Sensors, Vol 17, Iss 10, p 2319 (2017)

Subject Terms: fiber optic sensor, fiber Bragg grating, distributed sensing, strain and temperature, dynamic sensing, evaluation, Chemical technology, TP1-1185

File Description: electronic resource

Relation: https://www.mdpi.com/1424-8220/17/10/2319; https://doaj.org/toc/1424-8220

Access URL: https://doaj.org/article/60d98bd8f269474aacc6d4aebd1a076b

Estimation of Subsea Line Structure Behavior Based on Sequential Data Assimilation With Distributed Sensing.

Authors: Shun Kojima¹, kojima-shun086@g.ecc.u-tokyo.ac.jp, Ryota Wada², r_wada@k.u-tokyo.ac.jp, Hideaki Murayama², murayama@edu.k.u-tokyo.ac.jp

Source: Journal of Offshore Mechanics & Arctic Engineering; Oct2023, Vol. 145 Issue 5, p1-8, 8p

Structural Health Monitoring Based on Strain Distributions Measured by Fiber-optic Sensors.

Authors: Hideaki Murayama¹, Daichi Wada¹, Hirotaka Igawa²

Source: PIERS Proceedings; Aug2014, p1286-1289, 4p

Smart wing load alleviation through optical fiber sensing, load identification, and deep reinforcement learning.

Authors: Daichi Wada, Masato Tamayama, Hideaki Murayama

Source: Engineering Research Express; Dec2020, Vol. 2 Issue 4, p1-13, 13p

Investigation of Inverse Analysis and Neural Network Approaches for Identifying Distributed Load using Distributed Strains.

Authors: Daichi WADA, Yohei SUGIMOTO, Hideaki MURAYAMA, Hirotaka IGAWA, Toshiya NAKAMURA

Source: Transactions of the Japan Society of Aeronautical & Space Science; 2019, Vol. 62 Issue 3, p151-161, 11p

Subject Terms: ARTIFICIAL neural networks, MATRIX inversion, MEASUREMENT errors, STRUCTURAL health monitoring, COMPUTER simulation

Simultaneous measurement of dynamic strain and temperature distribution using high birefringence PANDA fiber Bragg grating.

Authors: Mengshi Zhu, Hideaki Murayama

Source: Proceedings of SPIE; 4/9/2017, Vol. 10323, p1-4, 4p

Flight demonstration of aircraft wing monitoring using optical fiber distributed sensing system.

Authors: Daichi Wada, Hirotaka Igawa, Masato Tamayama, Tokio Kasai, Hitoshi Arizono, Hideaki Murayama

Source: Smart Materials & Structures; May2019, Vol. 28 Issue 5, p1-1, 1p

Flight demonstration of aircraft fuselage and bulkhead monitoring using optical fiber distributed sensing system.

Authors: Daichi Wada, Hirotaka Igawa, Masato Tamayama, Tokio Kasai, Hitoshi Arizono, Hideaki Murayama, Katsuya Shiotsubo

Source: Smart Materials & Structures; Feb2018, Vol. 27 Issue 2, p1-1, 1p

An optical fiber sensing technique for temperature distribution measurements in microwave heating.

Authors: Daichi Wada¹, daichi_wd@giso.t.u-tokyo.ac.jp, Jun-ichi Sugiyama², Hiroaki Zushi¹, Hideaki Murayama¹

Source: Measurement Science & Technology; Aug2015, Vol. 26 Issue 8, p1-1, 1p

Dynamic strain distribution measurement and crack detection of an adhesive-bonded single-lap joint under cyclic loading using embedded FBG.

Authors: Xiaoguang Ning, Hideaki Murayama, Kazuro Kageyama, Daichi Wada, Makoto Kanai, Isamu Ohsawa, Hirotaka Igawa

Source: Smart Materials & Structures; Oct2014, Vol. 23 Issue 10, p1-1, 1p

Multiple damage assessment in composite laminates using a Doppler-effect-based fiber-optic sensor.

Authors: Fucai Li, Hideaki Murayama, Kazuro Kageyama, Isamu Ohsawa

Source: Measurement Science & Technology; Nov2009, Vol. 20 Issue 11, p115109-115109, 1p

Subject Terms: LAMINATED materials, DOPPLER effect, OPTICAL fiber detectors, CARBON fibers, FIBER-reinforced plastics, LAMB waves, HILBERT transform, EVALUATION, ULTRASONIC waves

Acoustic emission monitoring of a reinforced concrete structure by applying new fiber-optic sensors.

Authors: Kazuro Kageyama, Hideaki Murayama, Isamu Ohsawa, Makoto Kanai, Keiichi Nagata, Yuichi Machijima and Fumio Matsumura

Source: Smart Materials & Structures; 6/1/2005, Vol. 14 Issue 3, pS52-S59, 1p