斑馬魚C型起動(dòng)不僅發(fā)生于逃逸響應(yīng)（C型逃逸）,而且發(fā)生于非逃逸響應(yīng)（C型轉(zhuǎn)彎）。它們具有不同的變形模式和周期,并且運(yùn)動(dòng)學(xué)性能各異。在相同的彎曲幅度下,C型轉(zhuǎn)彎實(shí)現(xiàn)更大的轉(zhuǎn)彎角度,而C型逃逸則具有更快的游動(dòng)速度。但尚不清楚它們的水動(dòng)力學(xué)機(jī)制和力能學(xué)特征。本文針對(duì)C型轉(zhuǎn)彎和逃逸的變形特征,建立新的曲率模型,采用優(yōu)化算法擬合模型參數(shù)。通過自主游動(dòng)數(shù)值模擬,發(fā)現(xiàn)C型轉(zhuǎn)彎實(shí)現(xiàn)大轉(zhuǎn)彎的機(jī)制在于:彎曲階段存在比較大的正向力矩,而回?cái)[階段存在比較小的反向力矩;而C型逃逸在回?cái)[階段存在比較大的推力,導(dǎo)致反向力矩增大和轉(zhuǎn)彎角度變小。還發(fā)現(xiàn)周期對(duì)轉(zhuǎn)彎角度的影響不大,但對(duì)逃逸速度和能量消耗影響顯著。因此,C型轉(zhuǎn)彎為了節(jié)省能量,周期通常在100 ms以上;而C型逃逸為了追求高速度,周期則在50 ms附近。 

【文章來源】：中國科學(xué)院大學(xué)學(xué)報(bào). 2019,36(04)北大核心CSCD

【文章頁數(shù)】：14 頁

【文章目錄】：
1 Materials and methods
    1.1 The fish body model
    1.2 Establishment of the curvature model
    1.3 Determination of model parameters
    1.4 Governing equations of the self-propelled swimming
    1.5 Dimensionless parameters
2 Results and Discussions
    2.1 Numerical simulation results and comparisons with experiment
    2.2 Effects of deformation patterns
    2.3 Effects of duration
3 Conclusion


【參考文獻(xiàn)】：
期刊論文
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[2]斑馬魚C型起動(dòng)中動(dòng)力學(xué)特性的活體實(shí)驗(yàn)研究[J]. 張冰冰,余永亮.  實(shí)驗(yàn)力學(xué). 2014(06)
[3]Observation and hydrodynamic analysis of fast-start of yellow catfish （Pelteobagrus fulvidraco）[J]. JING Jun, YIN Xiezhen* and LU Xiyun(Department of Modern Mechanics, University of Science and Technology of China, Anhui 230026, China).  Progress in Natural Science. 2005(01)
[4]Hydrodynamic Analysis of C-start in Crucian Carp[J]. Jun Jing, Xiezhen Yin, Xiyun LuDepartment of Modern Mechanics,University of Science and Technology of China,Hefei, Anhui 230026, P. R. China.  Journal of Bionics Engineering. 2004(02)



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