On the Design of Bionic Hierarchical H-Type Whip Restraints for Nuclear Power Plants
Whip restraints based on thin-walled structures are widely used for protection against high-energy pipe breaks in nuclear power plants due to their excellent impact resistance. Recently, biomimetic and hierarchical structures have emerged as focal points in thin-walled structure research, aimed at e...
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MDPI AG
2025-05-01
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| Online Access: | https://www.mdpi.com/2076-3417/15/10/5507 |
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| author | Zheng He Yuhang Yang Libang Hu Shuitao Gu |
| author_facet | Zheng He Yuhang Yang Libang Hu Shuitao Gu |
| author_sort | Zheng He |
| collection | DOAJ |
| description | Whip restraints based on thin-walled structures are widely used for protection against high-energy pipe breaks in nuclear power plants due to their excellent impact resistance. Recently, biomimetic and hierarchical structures have emerged as focal points in thin-walled structure research, aimed at enhancing energy absorption capacities. Drawing inspiration from the nautilus shell and Fibonacci spiral, based on the nautilus bionic hierarchical multi-cell (NBHMC) structure, this study introduces a novel Nautilus Bionic Double Hierarchical Multi-Cell (NBDHMC) structure. Finite element analysis was employed to evaluate the energy absorption performance of the structure under axial and oblique loads using four crashworthiness parameters. Crashworthiness studies showed that the NBDHMC exhibits superior crashworthiness compared to the NBHMC and hollow circular tube configurations. Finally, the study investigated the influence of combination modes, hierarchical levels, cross-sectional characteristics, and other parameters on the parameterization of the NBDHMC. The results offer innovative insights for the design of highly efficient energy absorbers. |
| format | Article |
| id | doaj-art-10ef2139bb9a46a394b07f32d389168f |
| institution | OA Journals |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-10ef2139bb9a46a394b07f32d389168f2025-08-20T01:56:14ZengMDPI AGApplied Sciences2076-34172025-05-011510550710.3390/app15105507On the Design of Bionic Hierarchical H-Type Whip Restraints for Nuclear Power PlantsZheng He0Yuhang Yang1Libang Hu2Shuitao Gu3Chinergy Co., Ltd., Beijing 100084, ChinaSchool of Civil Engineering, Chongqing University, Chongqing 400044, ChinaCollege of Engineering and Technology, Southwest University, Chongqing 400715, ChinaSchool of Civil Engineering, Chongqing University, Chongqing 400044, ChinaWhip restraints based on thin-walled structures are widely used for protection against high-energy pipe breaks in nuclear power plants due to their excellent impact resistance. Recently, biomimetic and hierarchical structures have emerged as focal points in thin-walled structure research, aimed at enhancing energy absorption capacities. Drawing inspiration from the nautilus shell and Fibonacci spiral, based on the nautilus bionic hierarchical multi-cell (NBHMC) structure, this study introduces a novel Nautilus Bionic Double Hierarchical Multi-Cell (NBDHMC) structure. Finite element analysis was employed to evaluate the energy absorption performance of the structure under axial and oblique loads using four crashworthiness parameters. Crashworthiness studies showed that the NBDHMC exhibits superior crashworthiness compared to the NBHMC and hollow circular tube configurations. Finally, the study investigated the influence of combination modes, hierarchical levels, cross-sectional characteristics, and other parameters on the parameterization of the NBDHMC. The results offer innovative insights for the design of highly efficient energy absorbers.https://www.mdpi.com/2076-3417/15/10/5507Type-H whip restraintsbionic hierarchical structuresenergy absorptioncrashworthiness |
| spellingShingle | Zheng He Yuhang Yang Libang Hu Shuitao Gu On the Design of Bionic Hierarchical H-Type Whip Restraints for Nuclear Power Plants Applied Sciences Type-H whip restraints bionic hierarchical structures energy absorption crashworthiness |
| title | On the Design of Bionic Hierarchical H-Type Whip Restraints for Nuclear Power Plants |
| title_full | On the Design of Bionic Hierarchical H-Type Whip Restraints for Nuclear Power Plants |
| title_fullStr | On the Design of Bionic Hierarchical H-Type Whip Restraints for Nuclear Power Plants |
| title_full_unstemmed | On the Design of Bionic Hierarchical H-Type Whip Restraints for Nuclear Power Plants |
| title_short | On the Design of Bionic Hierarchical H-Type Whip Restraints for Nuclear Power Plants |
| title_sort | on the design of bionic hierarchical h type whip restraints for nuclear power plants |
| topic | Type-H whip restraints bionic hierarchical structures energy absorption crashworthiness |
| url | https://www.mdpi.com/2076-3417/15/10/5507 |
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