Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
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U-shaped Plate-based Springs Inspired by Fern Sporangia and Implementation of Progressive Rate Stiffness

양치식물 포자낭 모사 U 형상 판형 스프링 설계 및 다단강성 구현

  • Kyeonghwan Yoo (School of Mechanical Engineering, Pusan National University) ;
  • Jinhyeon Go (School of Mechanical Engineering, Pusan National University) ;
  • Jongsu Jeong (School of Mechanical Engineering, Pusan National University) ;
  • Min-cheol Kim (School of Mechanical Engineering, Pusan National University) ;
  • Seungho Kim (School of Mechanical Engineering, Pusan National University)
  • 유경환 ;
  • 고진현 ;
  • 정종수 ;
  • 김민철 ;
  • 김승호
  • Received : 2024.11.06
  • Accepted : 2024.11.20
  • Published : 2024.11.30
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Abstract

This study presents the design of plate-based springs inspired by the sporangium structure found in ferns, aiming to implement springs with progressive rate stiffness. The proposed design incorporates layered, U-shaped plate elements, which mimic the configuration of fern sporangia. By nesting multiple U-shaped plate-based springs, we created a structure that gradually increases in stiffness as compression advances. The spring's deformation under applied loads was investigated through experimental measurements, numerical analysis, and theoretical models, revealing strong correlations between these methods. Application potential was assessed by integrating the designed spring into a vehicle suspension system, where simulations indicated an improvement in damping performance compared to traditional single-stiffness springs. This spring design approach offers a practical and cost-effective solution for enhancing suspension systems without requiring complex adjustments to existing mechanisms.

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Acknowledgement

본 연구는 정부(과학기술정보통신부)의 재원으로 한국연구재단(No. 2022R1F1A1076192)의 지원과 2022학년도 부산대학교 신임교수연구정착금 지원으로 이루어졌음.