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Proceedings Papers

First Order Analysis for Automotive Designs

Yoshio Kojima, Hidekazu Nishigaki, Hideki Sugiura, Shinji Nishiwaki, Noboru Kikuchi
Proc. ASME. IMECE2001, Dynamic Systems and Control, 179-187, November 11–16, 2001
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2001/DSC-24523
https://doi.org/10.1115/IMECE2001/DSC-24523
View Paper titled, First Order Analysis for Automotive Designs
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Topics: Automotive design, Computer-aided engineering, Design, Optimization, Topology, Engineering prototypes, Innovation, Automobiles, Computer software, Finite element methods
Proceedings Papers

Modular Structural Component Design Using the First Order Analysis and Decomposition-Based Assembly Synthesis

Onur L. Cetin, Kazuhiro Saitou, Hidekazu Nishigaki, Shinji Nishiwaki, Tatsuyuki Amago, Noboru Kikuchi
Proc. ASME. IMECE2001, Advanced Vehicle Technologies, 131-140, November 11–16, 2001
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2001/DE-23265
https://doi.org/10.1115/IMECE2001/DE-23265
View Paper titled, Modular Structural Component Design Using the First Order Analysis and Decomposition-Based Assembly Synthesis
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Topics: Design, Manufacturing, Structural elements (Construction)
Journal Articles

An Approach for Geometrically Nonlinear Topology Optimization Using Moving Wide-Bézier Components With Constrained Ends

Benliang Zhu, Rixin Wang, Hongchuan Zhang, Hai Li, Junwen Liang, Xianmin Zhang, Hao Li, Shinji Nishiwaki
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. January 2022, 144(1): 011704.
Paper No: MD-21-1216
https://doi.org/10.1115/1.4051872
Published Online: August 11, 2021
View Article titled, An Approach for Geometrically Nonlinear Topology Optimization Using Moving Wide-Bézier Components With Constrained Ends
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Topics: Design, Optimization, Topology
Proceedings Papers

Optimal Structural Design of Compliant Mechanisms Considering a Quantitative Displacement Constraint

Susumu Ejima, Shinji Nishiwaki, Minako Sekiguchi, Noboru Kikuchi
Proc. ASME. DETC98, Volume 2: 24th Design Automation Conference, V002T02A047, September 13–16, 1998
Publisher: American Society of Mechanical Engineers
Paper No: DETC98/DAC-5580
https://doi.org/10.1115/DETC98/DAC-5580
View Paper titled, Optimal Structural Design of Compliant Mechanisms Considering a Quantitative Displacement Constraint
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Topics: Compliant mechanisms, Displacement, Structural optimization, Deformation, Density, Design, Design methodology, Design theory, Optimization, Structural design
Proceedings Papers

First Order Analysis for Automotive Body Structure Design

Hidekazu Nishigaki, Shinji Nishiwaki, Tatsuyuki Amago, Noboru Kikuchi
Proc. ASME. IDETC-CIE2000, Volume 2: 26th Design Automation Conference, 621-630, September 10–13, 2000
Publisher: American Society of Mechanical Engineers
Paper No: DETC2000/DAC-14533
https://doi.org/10.1115/DETC2000/DAC-14533
View Paper titled, First Order Analysis for Automotive Body Structure Design
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Topics: Computer-aided engineering, Design, Optimization, Topology, Engineering prototypes, Automobiles, Computer software, Engineers, Finite element methods
Journal Articles

Thermal Performance Optimization in Electric Vehicle Power Trains by Locally Orthotropic Surface Layer Design

Mario Petrovic, Tsuyoshi Nomura, Takayuki Yamada, Kazuhiro Izui, Shinji Nishiwaki
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research-Article
J. Mech. Des. November 2018, 140(11): 111413.
Paper No: MD-17-1681
https://doi.org/10.1115/1.4041220
Published Online: September 12, 2018
View Article titled, Thermal Performance Optimization in Electric Vehicle Power Trains by Locally Orthotropic Surface Layer Design
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Topics: Design, Optimization, Heat, Thermal conductivity, Trains, Electric vehicles
Journal Articles

An Optimum Design Method for a Thermal-Fluid Device Incorporating Multiobjective Topology Optimization With an Adaptive Weighting Scheme

Yuki Sato, Kentaro Yaji, Kazuhiro Izui, Takayuki Yamada, Shinji Nishiwaki
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research-Article
J. Mech. Des. March 2018, 140(3): 031402.
Paper No: MD-17-1359
https://doi.org/10.1115/1.4038209
Published Online: January 10, 2018
View Article titled, An Optimum Design Method for a Thermal-Fluid Device Incorporating Multiobjective Topology Optimization With an Adaptive Weighting Scheme
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Topics: Design, Optimization, Topology, Approximation, Thermofluids, Heat sinks, Heat
Proceedings Papers

Design of Mechanical Structures Considering Harmonic Loads Using Level Set-Based Topology Optimization

Takayuki Yamada, Toshiro Matsumoto, Shinji Nishiwaki
Proc. ASME. IDETC-CIE2012, Volume 3: 38th Design Automation Conference, Parts A and B, 857-862, August 12–15, 2012
Publisher: American Society of Mechanical Engineers
Paper No: DETC2012-70235
https://doi.org/10.1115/DETC2012-70235
View Paper titled, Design of Mechanical Structures Considering Harmonic Loads Using Level Set-Based Topology Optimization
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Topics: Design, Mechanical structures, Optimization, Stress, Topology, Finite element methods, Design methodology, Displacement, Equilibrium (Physics), Optimization algorithms
Journal Articles

Conceptual Design Method for Reducing Brake Squeal in Disk Brake Systems Considering Unpredictable Usage Factors

Toru Matsushima, Kazuhiro Izui, Shinji Nishiwaki
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. June 2012, 134(6): 061008.
https://doi.org/10.1115/1.4006326
Published Online: April 27, 2012
View Article titled, Conceptual Design Method for Reducing Brake Squeal in Disk Brake Systems Considering Unpredictable Usage Factors
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Topics: Brakes, Design, Disks, Friction, Stiffness
Journal Articles

Design of Compliant Thermal Actuators Using Structural Optimization Based on the Level Set Method

Takayuki Yamada, Shintaro Yamasaki, Shinji Nishiwaki, Kazuhiro Izui, Masataka Yoshimura
Journal: Journal of Computing and Information Science in Engineering
Publisher: ASME
Article Type: Research Papers
J. Comput. Inf. Sci. Eng. March 2011, 11(1): 011005.
https://doi.org/10.1115/1.3563049
Published Online: March 30, 2011
View Article titled, Design of Compliant Thermal Actuators Using Structural Optimization Based on the Level Set Method
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Topics: Actuators, Design, Optimization, Structural optimization, Finite element methods, Electric potential, Shapes, Displacement
Journal Articles

A Level Set-Based Topology Optimization Method for Maximizing Thermal Diffusivity in Problems Including Design-Dependent Effects

Takayuki Yamada, Kazuhiro Izui, Shinji Nishiwaki
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. March 2011, 133(3): 031011.
https://doi.org/10.1115/1.4003684
Published Online: March 15, 2011
View Article titled, A Level Set-Based Topology Optimization Method for Maximizing Thermal Diffusivity in Problems Including Design-Dependent Effects
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Topics: Convection, Design, Optimization, Topology, Boundary-value problems, Thermal diffusivity, Heat conduction
Proceedings Papers

Level Set-Based Topology Optimization Method for Thermal Problems Considering Design-Dependent Boundary Effects

Takayuki Yamada, Shinji Nishiwaki, Atsuro Iga, Kazuhiro Izui, Masataka Yoshimura
Proc. ASME. IDETC-CIE2009, Volume 5: 35th Design Automation Conference, Parts A and B, 1279-1286, August 30–September 2, 2009
Publisher: American Society of Mechanical Engineers
Paper No: DETC2009-86618
https://doi.org/10.1115/DETC2009-86618
View Paper titled, Level Set-Based Topology Optimization Method for Thermal Problems Considering Design-Dependent Boundary Effects
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Topics: Design, Optimization, Topology, Field theories (Physics), Boundary-value problems, Equilibrium (Physics), Finite element methods, Heat transfer, Optimization algorithms, Potential energy
Proceedings Papers

A Structural Optimization Method for Universal Design of Compliant Mechanism Scissors

Kazuhiro Izui, Kiyoshi Yokota, Takayuki Yamada, Shinji Nishiwaki, Masataka Yoshimura
Proc. ASME. IDETC-CIE2009, Volume 5: 35th Design Automation Conference, Parts A and B, 871-880, August 30–September 2, 2009
Publisher: American Society of Mechanical Engineers
Paper No: DETC2009-86594
https://doi.org/10.1115/DETC2009-86594
View Paper titled, A Structural Optimization Method for Universal Design of Compliant Mechanism Scissors
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Topics: Compliant mechanisms, Design, Structural optimization, Optimization, Center of mass, Deformation, Design methodology, Failure, Finite element model, Pareto optimization
Proceedings Papers

Design of Compliant Thermal Actuators Using Structural Optimization Based on the Level Set Method

Takayuki Yamada, Shintaro Yamasaki, Shinji Nishiwaki, Kazuhiro Izui, Masataka Yoshimura
Proc. ASME. IDETC-CIE2008, Volume 1: 34th Design Automation Conference, Parts A and B, 1217-1225, August 3–6, 2008
Publisher: American Society of Mechanical Engineers
Paper No: DETC2008-49618
https://doi.org/10.1115/DETC2008-49618
View Paper titled, Design of Compliant Thermal Actuators Using Structural Optimization Based on the Level Set Method
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Topics: Actuators, Design, Finite element methods, Optimization, Structural optimization, Algorithms, Compliant mechanisms, Displacement, Equilibrium (Physics), Geometry
Proceedings Papers

Multiobjective Optimization Method for Lifecycle Design of Machine Products

Kenji Doi, Masataka Yoshimura, Shinji Nishiwaki, Kazuhiro Izui
Proc. ASME. IDETC-CIE2008, Volume 1: 34th Design Automation Conference, Parts A and B, 937-947, August 3–6, 2008
Publisher: American Society of Mechanical Engineers
Paper No: DETC2008-49425
https://doi.org/10.1115/DETC2008-49425
View Paper titled, Multiobjective Optimization Method for Lifecycle Design of Machine Products
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Topics: Design, Machinery, Pareto optimization, Optimization, Manufacturing, Product design, Recycling, Decision making, Design methodology, Energy consumption
Proceedings Papers

Fundamental Strategies for System Optimization of Machine Product Designs

Masataka Yoshimura, Yu Yoshimura, Kazuhiro Izui, Shinji Nishiwaki
Proc. ASME. IDETC-CIE2008, Volume 1: 34th Design Automation Conference, Parts A and B, 949-959, August 3–6, 2008
Publisher: American Society of Mechanical Engineers
Paper No: DETC2008-49435
https://doi.org/10.1115/DETC2008-49435
View Paper titled, Fundamental Strategies for System Optimization of Machine Product Designs
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Topics: Machinery, Optimization, Product design, Machine tools, Manufacturing, Robustness, Tradeoffs
Proceedings Papers

Multi-Stage Design Method for Practical Compliant Mechanisms by Topology and Shape Optimizations and Shape Conversion Method Utilizing Level Set Method

Masakazu Kobayashi, Shinji Nishiwaki, Masatake Higashi
Proc. ASME. IDETC-CIE2008, Volume 2: 32nd Mechanisms and Robotics Conference, Parts A and B, 265-272, August 3–6, 2008
Publisher: American Society of Mechanical Engineers
Paper No: DETC2008-49717
https://doi.org/10.1115/DETC2008-49717
View Paper titled, Multi-Stage Design Method for Practical Compliant Mechanisms by Topology and Shape Optimizations and Shape Conversion Method Utilizing Level Set Method
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Topics: Compliant mechanisms, Design methodology, Shapes, Topology, Optimization, Shape optimization, Deformation, Design, Stress concentration
Proceedings Papers

Topology Optimization for Steady-State Heat Transfer Problems Including Design-Dependent Effects

Atsuro Iga, Shinji Nishiwaki, Kazuhiro Izui, Masataka Yoshimura
Proc. ASME. IDETC-CIE2008, Volume 1: 34th Design Automation Conference, Parts A and B, 1157-1166, August 3–6, 2008
Publisher: American Society of Mechanical Engineers
Paper No: DETC2008-49098
https://doi.org/10.1115/DETC2008-49098
View Paper titled, Topology Optimization for Steady-State Heat Transfer Problems Including Design-Dependent Effects
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Topics: Design, Heat transfer, Optimization, Steady state, Topology, Boundary-value problems, Density, Finite element methods, Heat transfer coefficients, Linear programming
Proceedings Papers

Switchgear Component Commonality Design Method Considering Delivery Lead-Time and Inventory Level

Haruki Kariya, Kazuhiro Izui, Shinji Nishiwaki, Masataka Yoshimura, Yoshiya Ogihara, Shuichi Hayashi
Proc. ASME. IDETC-CIE2007, Volume 6: 33rd Design Automation Conference, Parts A and B, 1039-1047, September 4–7, 2007
Publisher: American Society of Mechanical Engineers
Paper No: DETC2007-35687
https://doi.org/10.1115/DETC2007-35687
View Paper titled, Switchgear Component Commonality Design Method Considering Delivery Lead-Time and Inventory Level
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Topics: Concretes, Design, Design methodology, Manufacturing, Manufacturing systems, Product design, Risk, Simulation
Proceedings Papers

Robust Product Design Optimization Method Using Hierarchical Representations of Characteristics

Masataka Yoshimura, Koichi Sasaki, Kazuhiro Izui, Shinji Nishiwaki
Proc. ASME. IDETC-CIE2007, Volume 6: 33rd Design Automation Conference, Parts A and B, 883-894, September 4–7, 2007
Publisher: American Society of Mechanical Engineers
Paper No: DETC2007-34591
https://doi.org/10.1115/DETC2007-34591
View Paper titled, Robust Product Design Optimization Method Using Hierarchical Representations of Characteristics
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Topics: Optimization, Product design, Performance characterization, Robustness, Design, Machine tools, Manufacturing, Pareto optimization