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DOI10.1126/science.aao1082
The principles of cascading power limits in small, fast biological and engineered systems
Ilton, Mark1; Bhamla, M. Saad2,10; Ma, Xiaotian3,4; Cox, Suzanne M.5; Fitchett, Leah L.5; Kim, Yongjin1; Koh, Je-sung6,7,11; Krishnamurthy, Deepak2; Kuo, Chi-Yun5,12; Temel, Fatma Zeynep6,7; Crosby, Alfred J.1; Prakash, Manu2; Sutton, Gregory P.8; Wood, Robert J.6,7; Azizi, Emanuel9; Bergbreiter, Sarah3,4; Patek, S. N.5
2018-04-27
发表期刊SCIENCE
ISSN0036-8075
EISSN1095-9203
出版年2018
卷号360期号:6387
文章类型Article
语种英语
国家USA; England; South Korea; Germany
英文摘要

Mechanical power limitations emerge from the physical trade-off between force and velocity. Many biological systems incorporate power-enhancing mechanisms enabling extraordinary accelerations at small sizes. We establish how power enhancement emerges through the dynamic coupling of motors, springs, and latches and reveal how each displays its own force-velocity behavior. We mathematically demonstrate a tunable performance space for spring-actuated movement that is applicable to biological and synthetic systems. Incorporating nonideal spring behavior and parameterizing latch dynamics allows the identification of critical transitions in mass and trade-offs in spring scaling, both of which offer explanations for long-observed scaling patterns in biological systems. This analysis defines the cascading challenges of power enhancement, explores their emergent effects in biological and engineered systems, and charts a pathway for higher-level analysis and synthesis of power-amplified systems.


领域地球科学 ; 气候变化 ; 资源环境
收录类别SCI-E
WOS记录号WOS:000430949600032
WOS关键词MECHANICAL-PROPERTIES ; JUMPING MECHANISMS ; PLANTARIS TENDON ; ENERGY-STORAGE ; PHYSICAL WORLD ; MUSCLE ; BIOMECHANICS ; ROBOT ; DEFORMATION ; PERFORMANCE
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/198516
专题地球科学
资源环境科学
气候变化
作者单位1.Univ Massachusetts Amherst, Dept Polymer Sci & Engn, Amherst, MA 01003 USA;
2.Stanford Univ, Dept Bioengn, Stanford, CA 94305 USA;
3.Univ Maryland Coll Pk, Dept Mech Engn, College Pk, MD 20742 USA;
4.Univ Maryland Coll Pk, Syst Res Inst, College Pk, MD 20742 USA;
5.Duke Univ, Dept Biol, Durham, NC 27708 USA;
6.Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA;
7.Harvard Univ, Wyss Inst Biol Inspired Engn, Cambridge, MA 02138 USA;
8.Univ Bristol, Sch Biol Sci, Bristol BS8 1TH, Avon, England;
9.Univ Calif Irvine, Ecol & Evolutionary Biol, Irvine, CA USA;
10.Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA;
11.Ajou Univ, Dept Mech Engn, Suwon 16499, South Korea;
12.Ludwig Maximilian Univ Munich, Div Evolutionary Biol, Grosshaderner Str 2, D-82152 Planegg Martinsried, Germany
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GB/T 7714
Ilton, Mark,Bhamla, M. Saad,Ma, Xiaotian,et al. The principles of cascading power limits in small, fast biological and engineered systems[J]. SCIENCE,2018,360(6387).
APA Ilton, Mark.,Bhamla, M. Saad.,Ma, Xiaotian.,Cox, Suzanne M..,Fitchett, Leah L..,...&Patek, S. N..(2018).The principles of cascading power limits in small, fast biological and engineered systems.SCIENCE,360(6387).
MLA Ilton, Mark,et al."The principles of cascading power limits in small, fast biological and engineered systems".SCIENCE 360.6387(2018).
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