彭奕森Peng, Yi-Sen

研究興趣

城市樹木斷枝與倒伏的大數據為風險管理奠定了可靠的統計基礎。然而,單純的發生頻
率仍難以解釋「特定時間與結構條件下為何會破壞」。為補強這一層面,我將木材生理參數
納入高解析度有限元素模型(FEM),在統計資料之上提供細部力學機制的量化證據。模型
輸出——樹冠穩定度、碳固持量與結構剩餘壽命——可直接轉換為操作性強的風險熱點地
圖與修剪方案。多個城市林業單位已依據這些資料挑選抗颱風樹種並排定預防性養護時程
,而同一套生物力學原理亦促成了土木工程中仿生接頭的設計,讓生態知識與工程實務相
互加值。透過直覺化視覺呈現,複雜的力學數據被轉化為決策者與居民都能理解的故事,
確保繁茂健康的樹冠成為安全與舒適的來源,而非隱藏的風險。

代表著作

RESEARCH HIGHLIGHTS
1. Mechanical roles of branch–stem junction morphologies
The apparent complexity of a tree can be reduced to its fundamental unit: the branch–stem junction. I quantified how distinct junction shapes redistribute loads, showing that each morphology shifts both the magnitude and location of stress hotspots [1, 2]. These hotspots predict where adaptive growth occurs or where mechanical failure is likely, allowing the physiological benefits and structural risks of each junction type to be identified and compared [2].
Reference: [1]. Peng and Liu, 2016. [2] Liu et al. 2023
 
2. Tree internal cone: conical interlocking connections in normal versus latent-bud branches
Beyond external form, junction strength is dictated by concealed architecture. In normal branches, sequential xylem growth creates an internal cone—a conical interlocking connection—that sharply boosts axial and shear resistance [1]. Comparing this robust geometry with the flatter attachment of latent-bud branches reveals how developmental origin governs mechanical integrity at the branch–stem interface.
Reference: [1]. Peng et al. 2025
REPRESENTATIVE PUBLICATIONS
  1. Peng, Y.-S., B.-Y. Cheng, and T.-C. Liu*, “Mechanical properties and optimization strategies of tree fork structures,” Plants, vol. 14, no. 2, p. 167, 2025. doi:10.3390/plants14020167
  2. Liu, T.-C., Y.-S. Peng, and B.-Y. Cheng*, “Physiological and Physical Strategies to Minimize Damage at the Branch–Stem Junction of Trees: Using the Finite Element Method to Analyze Stress in Four Branch–Stem Features,” Plants, vol. 12, no. 23, p. 4060, 2023. doi:10.3390/plants12234060
Others (Invited Talks,Keynote speech et al.)
  1. Peng, Y.-S., B.-Y. Cheng, and T.-C. Liu*, “Application of the finite-element method in visual diagnosis,” in Proceedings of the 2023 Sustainable Taiwan Environmental Protection and Development Conference (STPD 2023), Yunlin University of Science and Technology, 2023.
  2. Peng, Y.-S., and T.-C. Liu*, “Mechanical analysis of branch–stem interweaving regions in trees,” in Proceedings of the 2023 Sustainable Taiwan Environmental Protection and Development Conference (STPD 2023), Yunlin University of Science and Technology, 2023.
  3. Peng, Y.-S., and T.-C. Liu*, “Finite-element analysis of mechanical behaviour in normal, latent-bud, and included-bark branches,” invited talk, National Chung Hsing University, March 2025 (in Chinese).

研究成果介紹

  • 博士
    國立中興大學
    園藝學系 (2025)
  • 碩士
    國立中興大學
    園藝學系 (2016)
  • 學士
    國立中興大學
    電機系 (2013)
  • (02) 2787-5838

  • yisenpeng

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