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Proceedings Papers

Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 8 — Assembly Static Test Results of Three-Dimensional Isolated Device by Bi-Axial Loadings

Takahiro Somaki, Masaki Yukawa, Tsuyoshi Fukasawa, Tomoyuki Hirayama, Masato Uchita, Takayuki Miyagawa, Shigeki Okamura, Tomohiko Yamamoto, Tomoyoshi Watakabe, Masashi Miyazaki, Satoshi Fujita
Proc. ASME. PVP2024, Volume 5: Operations, Applications, & Components; Seismic Engineering; ASME Nondestructive Evaluation, Diagnosis and Prognosis (NDPD) Division, V005T08A007, July 28–August 2, 2024
Publisher: American Society of Mechanical Engineers
Paper No: PVP2024-124495
https://doi.org/10.1115/PVP2024-124495
View Paper titled, Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 8 — Assembly Static Test Results of Three-Dimensional Isolated Device by Bi-Axial Loadings
Open the PDF for Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 8 — Assembly Static Test Results of Three-Dimensional Isolated Device by Bi-Axial Loadings in another window
Topics: Industrial research, Manufacturing, Sodium fast reactors, Stress, Earthquake resistant design, Bearings, Dampers, Damping, Disks, Plates (structures)
Proceedings Papers

Research and Development of Three-Dimensional Isolation System for Sodium Cooled Fast Reactor: Part 7 Development Summary of Three-Dimensional Isolation System

Tomoyoshi Watakabe, Tomohiko Yamamoto, Shigeki Okamura, Masashi Miyazaki, Takayuki Miyagawa, Masato Uchita, Tomoyuki Hirayama, Takahiro Somaki, Masaki Yukawa, Tsuyoshi Fukasawa, Satoshi Fujita
Proc. ASME. PVP2024, Volume 5: Operations, Applications, & Components; Seismic Engineering; ASME Nondestructive Evaluation, Diagnosis and Prognosis (NDPD) Division, V005T08A005, July 28–August 2, 2024
Publisher: American Society of Mechanical Engineers
Paper No: PVP2024-122430
https://doi.org/10.1115/PVP2024-122430
View Paper titled, Research and Development of Three-Dimensional Isolation System for Sodium Cooled Fast Reactor: Part 7 Development Summary of Three-Dimensional Isolation System
Open the PDF for Research and Development of Three-Dimensional Isolation System for Sodium Cooled Fast Reactor: Part 7 Development Summary of Three-Dimensional Isolation System in another window
Topics: Disks, Industrial research, Sodium fast reactors, Springs, Earthquakes, Design, Light water reactors, Pipes, Stress, Bearings
Proceedings Papers

Research and Development of Three-Dimensional Isolation System For Sodium Cooled Fast Reactor Part 9: Evaluating Seismic Isolation Performance Through Seismic Response Analysis

Tsuyoshi Fukasawa, Takahiro Somaki, Masaki Yukawa, Tomoyuki Hirayama, Tomoyoshi Watakabe, Tomohiko Yamamoto, Shigeki Okamura, Masashi Miyazaki, Masato Uchita, Takayuki Miyagawa, Satoshi Fujita
Proc. ASME. PVP2024, Volume 5: Operations, Applications, & Components; Seismic Engineering; ASME Nondestructive Evaluation, Diagnosis and Prognosis (NDPD) Division, V005T08A004, July 28–August 2, 2024
Publisher: American Society of Mechanical Engineers
Paper No: PVP2024-121899
https://doi.org/10.1115/PVP2024-121899
View Paper titled, Research and Development of Three-Dimensional Isolation System For Sodium Cooled Fast Reactor Part 9: Evaluating Seismic Isolation Performance Through Seismic Response Analysis
Open the PDF for Research and Development of Three-Dimensional Isolation System For Sodium Cooled Fast Reactor Part 9: Evaluating Seismic Isolation Performance Through Seismic Response Analysis in another window
Topics: Bearings, Dampers, Design, Finite element methods, Finite element model, Industrial research, Rubber, Sodium fast reactors
Proceedings Papers

Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 13 Fragility Analysis Based on Structural Health Monitoring

Keisuke Minagawa, Kiyoshi Aida, Satoshi Fujita
Proc. ASME. PVP2023, Volume 7: Seismic Engineering; ASME Nondestructive Evaluation, Diagnosis and Prognosis (NDPD) Division, V007T08A006, July 16–21, 2023
Publisher: American Society of Mechanical Engineers
Paper No: PVP2023-105967
https://doi.org/10.1115/PVP2023-105967
View Paper titled, Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 13 Fragility Analysis Based on Structural Health Monitoring
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Topics: Dampers, Fluids, Industrial research, Structural health monitoring, Thermal power stations
Proceedings Papers

Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 12 Vibration Measurement of Existing Boiler Structure

Keisuke Minagawa, Kiyoshi Aida, Satoshi Fujita
Proc. ASME. PVP2022, Volume 5: Operations, Applications, and Components; Seismic Engineering; ASME Nondestructive Evaluation, Diagnosis and Prognosis (NDPD) Division, V005T08A008, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-84633
https://doi.org/10.1115/PVP2022-84633
View Paper titled, Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 12 Vibration Measurement of Existing Boiler Structure
Open the PDF for Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 12 Vibration Measurement of Existing Boiler Structure in another window
Topics: Boilers, Dampers, Fluids, Industrial research, Thermal power stations, Vibration measurement, Earthquakes, Coal, Power stations, Carbon
Proceedings Papers

Research and Examination of Seismic Safety Evaluation and Function Maintenance for Important Equipment in Nuclear Facilities

Osamu Furuya, Satoshi Fujita, Hitoshi Muta, Yasuki Ohtori, Tatsuya Itoi, Shigeki Okamura, Keisuke Minagawa, Izumi Nakamura, Shigeru Fujimoto, Akihito Otani, Akemi Nishida, Tomoyoshi Watakabe
Proc. ASME. PVP2021, Volume 5: Operations, Applications, and Components; Seismic Engineering; Non-Destructive Examination, V005T08A022, July 13–15, 2021
Publisher: American Society of Mechanical Engineers
Paper No: PVP2021-61781
https://doi.org/10.1115/PVP2021-61781
View Paper titled, Research and Examination of Seismic Safety Evaluation and Function Maintenance for Important Equipment in Nuclear Facilities
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Topics: Maintenance, Nuclear power stations, Safety
Proceedings Papers

Study on Reliability of Seismic Capacity Analysis for Important Equipment in Nuclear Facilities

Hitoshi Muta, Yasuki Ohtori, Osamu Furuya, Satoshi Fujita
Proc. ASME. PVP2021, Volume 5: Operations, Applications, and Components; Seismic Engineering; Non-Destructive Examination, V005T08A021, July 13–15, 2021
Publisher: American Society of Mechanical Engineers
Paper No: PVP2021-61742
https://doi.org/10.1115/PVP2021-61742
View Paper titled, Study on Reliability of Seismic Capacity Analysis for Important Equipment in Nuclear Facilities
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Topics: Nuclear power stations, Reliability, Safety, Accidents, Design, Countermeasures, Fukushima nuclear disaster, Japan, 2011, Regulations, Defense industry, Earthquake risk
Proceedings Papers

Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 11 Optimization of Dampers by Genetic Algorithm

Keisuke Minagawa, Kiyoshi Aida, Satoshi Fujita
Proc. ASME. PVP2021, Volume 5: Operations, Applications, and Components; Seismic Engineering; Non-Destructive Examination, V005T08A007, July 13–15, 2021
Publisher: American Society of Mechanical Engineers
Paper No: PVP2021-61481
https://doi.org/10.1115/PVP2021-61481
View Paper titled, Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 11 Optimization of Dampers by Genetic Algorithm
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Topics: Dampers, Fluids, Genetic algorithms, Industrial research, Optimization, Thermal power stations, Vibration control
Proceedings Papers

Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 9 — Investigation Regarding Damage Between Furnace and Cage

Kiyoshi Aida, Keisuke Minagawa, Satoshi Fujita
Proc. ASME. PVP2020, Volume 9: Seismic Engineering, V009T09A008, August 3, 2020
Publisher: American Society of Mechanical Engineers
Paper No: PVP2020-21268
https://doi.org/10.1115/PVP2020-21268
View Paper titled, Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 9 — Investigation Regarding Damage Between Furnace and Cage
Open the PDF for Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 9 — Investigation Regarding Damage Between Furnace and Cage in another window
Topics: Damage, Dampers, Fluids, Furnaces, Industrial research, Thermal power stations
Proceedings Papers

Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 10 — Damper to Suppress Relative Deformation Between Furnace and Cage

Keisuke Minagawa, Kiyoshi Aida, Satoshi Fujita
Proc. ASME. PVP2020, Volume 9: Seismic Engineering, V009T09A009, August 3, 2020
Publisher: American Society of Mechanical Engineers
Paper No: PVP2020-21269
https://doi.org/10.1115/PVP2020-21269
View Paper titled, Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 10 — Damper to Suppress Relative Deformation Between Furnace and Cage
Open the PDF for Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 10 — Damper to Suppress Relative Deformation Between Furnace and Cage in another window
Topics: Dampers, Deformation, Fluids, Furnaces, Industrial research, Thermal power stations
Proceedings Papers

Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 5 — Isolation Performance Applied to Reactor Building

Takahiro Somaki, Tsuyoshi Fukasawa, Shigeki Okamura, Takayuki Miyagawa, Masato Uchita, Tomohiko Yamamoto, Masashi Miyazaki, Satoshi Fujita
Proc. ASME. PVP2020, Volume 9: Seismic Engineering, V009T09A019, August 3, 2020
Publisher: American Society of Mechanical Engineers
Paper No: PVP2020-21709
https://doi.org/10.1115/PVP2020-21709
View Paper titled, Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 5 — Isolation Performance Applied to Reactor Building
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Topics: Industrial research, Sodium fast reactors
Proceedings Papers

Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 6 — Development of High Speed Oil Damper for Isolated Building

Tsuyoshi Fukasawa, Takahiro Somaki, Takayuki Miyagawa, Masato Uchita, Tomohiko Yamamoto, Masashi Miyazaki, Shigeki Okamura, Satoshi Fujita
Proc. ASME. PVP2020, Volume 9: Seismic Engineering, V009T09A018, August 3, 2020
Publisher: American Society of Mechanical Engineers
Paper No: PVP2020-21320
https://doi.org/10.1115/PVP2020-21320
View Paper titled, Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 6 — Development of High Speed Oil Damper for Isolated Building
Open the PDF for Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 6 — Development of High Speed Oil Damper for Isolated Building in another window
Topics: Dampers, Industrial research, Sodium fast reactors
Proceedings Papers

Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 3 — Characteristics for Elements on Basis of Half-Scale Loading Tests

Takahiro Somaki, Tsuyoshi Fukasawa, Shigeki Okamura, Takayuki Miyagawa, Masato Uchita, Tomohiko Yamamoto, Tomoyoshi Watakabe, Satoshi Fujita
Proc. ASME. PVP2019, Volume 8: Seismic Engineering, V008T08A037, July 14–19, 2019
Publisher: American Society of Mechanical Engineers
Paper No: PVP2019-93475
https://doi.org/10.1115/PVP2019-93475
View Paper titled, Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 3 — Characteristics for Elements on Basis of Half-Scale Loading Tests
Open the PDF for Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 3 — Characteristics for Elements on Basis of Half-Scale Loading Tests in another window
Topics: Bearings, Disks, Industrial research, Rubber, Sodium fast reactors, Springs, Dampers, Design methodology, Displacement, Dynamic testing (Materials)
Proceedings Papers

Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 4 — Proposal of Optimal Combination Method for Disc Spring Units and Newly Friction Model for Sliding Elements

Tsuyoshi Fukasawa, Shigeki Okamura, Takahiro Somaki, Takayuki Miyagawa, Masato Uchita, Tomohiko Yamamoto, Tomoyoshi Watakabe, Satoshi Fujita
Proc. ASME. PVP2019, Volume 8: Seismic Engineering, V008T08A038, July 14–19, 2019
Publisher: American Society of Mechanical Engineers
Paper No: PVP2019-93480
https://doi.org/10.1115/PVP2019-93480
View Paper titled, Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 4 — Proposal of Optimal Combination Method for Disc Spring Units and Newly Friction Model for Sliding Elements
Open the PDF for Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 4 — Proposal of Optimal Combination Method for Disc Spring Units and Newly Friction Model for Sliding Elements in another window
Topics: Disks, Friction, Industrial research, Sodium fast reactors, Springs, Algorithms, Bearings, Dampers, Dimensions, Quality control
Proceedings Papers

Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 7 — Evaluation of Lifetime Using Experimental Design Method

Kiyoshi Aida, Keisuke Minagawa, Go Tanaka, Satoshi Fujita
Proc. ASME. PVP2019, Volume 8: Seismic Engineering, V008T08A007, July 14–19, 2019
Publisher: American Society of Mechanical Engineers
Paper No: PVP2019-93534
https://doi.org/10.1115/PVP2019-93534
View Paper titled, Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 7 — Evaluation of Lifetime Using Experimental Design Method
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Topics: Dampers, Experimental design, Fluids, Industrial research, Thermal power stations, Vibration control
Proceedings Papers

Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 8 — Evaluation of Vibration Control Performance Using Experimental Design Method

Keisuke Minagawa, Kiyoshi Aida, Go Tanaka, Satoshi Fujita
Proc. ASME. PVP2019, Volume 8: Seismic Engineering, V008T08A008, July 14–19, 2019
Publisher: American Society of Mechanical Engineers
Paper No: PVP2019-93535
https://doi.org/10.1115/PVP2019-93535
View Paper titled, Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 8 — Evaluation of Vibration Control Performance Using Experimental Design Method
Open the PDF for Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 8 — Evaluation of Vibration Control Performance Using Experimental Design Method in another window
Topics: Dampers, Experimental design, Fluids, Industrial research, Thermal power stations, Vibration control
Proceedings Papers

Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 6 — Influence of Damper Properties on Vibration Control Performance

Keisuke Minagawa, Kiyoshi Aida, Go Tanaka, Satoshi Fujita
Proc. ASME. PVP2018, Volume 8: Seismic Engineering, V008T08A037, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-84518
https://doi.org/10.1115/PVP2018-84518
View Paper titled, Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 6 — Influence of Damper Properties on Vibration Control Performance
Open the PDF for Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 6 — Influence of Damper Properties on Vibration Control Performance in another window
Topics: Dampers, Fluids, Industrial research, Thermal power stations, Vibration control, Earthquakes, Boilers, Coal, Power stations, Steel
Proceedings Papers

Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 1 — Proposal of Analytical Models Based on Loading Tests

Tsuyoshi Fukasawa, Shigeki Okamura, Takahiro Somaki, Takayuki Miyagawa, Masato Uchita, Tomohiko Yamamoto, Tomoyoshi Watakabe, Satoshi Fujita
Proc. ASME. PVP2018, Volume 8: Seismic Engineering, V008T08A038, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-84532
https://doi.org/10.1115/PVP2018-84532
View Paper titled, Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 1 — Proposal of Analytical Models Based on Loading Tests
Open the PDF for Research and Development of Three-Dimensional Isolation System for Sodium-Cooled Fast Reactor: Part 1 — Proposal of Analytical Models Based on Loading Tests in another window
Topics: Bearings, Dampers, Damping, Design, Differential equations, Disks, Industrial research, Reactor vessels, Rubber, Sodium fast reactors
Proceedings Papers

Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 4 — Experimental Study on Environmental Applicability and Durability of Damper

Go Tanaka, Keisuke Minagawa, Kiyoshi Aida, Satoshi Fujita
Proc. ASME. PVP2018, Volume 8: Seismic Engineering, V008T08A040, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-84556
https://doi.org/10.1115/PVP2018-84556
View Paper titled, Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 4 — Experimental Study on Environmental Applicability and Durability of Damper
Open the PDF for Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 4 — Experimental Study on Environmental Applicability and Durability of Damper in another window
Topics: Dampers, Durability, Fluids, Industrial research, Thermal power stations, Boilers, Earthquakes, Coal, Shorelines, Combustion
Proceedings Papers

Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 5 — Influence of Damper Properties on Lifetime

Kiyoshi Aida, Keisuke Minagawa, Go Tanaka, Satoshi Fujita
Proc. ASME. PVP2018, Volume 8: Seismic Engineering, V008T08A036, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-84514
https://doi.org/10.1115/PVP2018-84514
View Paper titled, Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 5 — Influence of Damper Properties on Lifetime
Open the PDF for Research and Development of Viscous Fluid Dampers for Improvement of Seismic Resistance of Thermal Power Plants: Part 5 — Influence of Damper Properties on Lifetime in another window
Topics: Dampers, Fluids, Industrial research, Thermal power stations, Earthquakes, Boilers, Coal, Vibration, Construction, Deformation