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首页> 外文期刊>International journal of aerospace engineering >The Effect of Damping Coefficient, Spring Coefficient, and Mass Ratio on the Power Extraction Performance of a Semiactive Flapping Wing
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The Effect of Damping Coefficient, Spring Coefficient, and Mass Ratio on the Power Extraction Performance of a Semiactive Flapping Wing

机译：阻尼系数，弹簧系数和质量比对半主动拍动翼功率提取性能的影响

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摘要

The effect of varying damping coefficient C, spring coefficient K, and mass ratio M on the semiactive flapping wing power extraction performance was numerically studied in this paper. A numerical code based on Finite Volume method to solve the two-dimensional Navier-Stokes equations and coupled with Finite Center Difference method to solve the passive plunging motion equation is developed. At a Reynolds number of 3400 and the pitching axis at quarter chord from the leading edge of the wing, the power extraction performance of the semiactive flapping wing with different damping coefficient, spring coefficient, and mass ratio is systematically investigated. The optimal set of spring coefficient is found at a value of 1.00. However, the variation of mass ratio M cannot increase the maximum mean power coefficient and power efficiency, but it can influence the value of damping coefficient C at which the wing achieves the maximum mean power coefficient and power efficiency. Moreover, insensitivity of the mean power coefficient and power efficiency to the variation of damping coefficient C is observed for the wing with smaller mass ratio, which indicates the wing with smaller M has better working stability.
机译：数值研究了阻尼系数C，弹簧系数K和质量比M的变化对半主动襟翼功率提取性能的影响。开发了一种基于有限体积法求解二维Navier-Stokes方程，并结合有限中心差分法求解被动下降运动方程的数值代码。在雷诺数为3400且俯仰轴位于机翼前缘四分之一弦处的情况下，系统研究了具有不同阻尼系数，弹簧系数和质量比的半主动襟翼的动力提取性能。发现最佳的弹簧系数设置为1.00。然而，质量比M的变化不能增加最大平均功率系数和功率效率，但是会影响机翼实现最大平均功率系数和功率效率的阻尼系数C的值。此外，对于质量比较小的机翼，平均功率系数和功率效率对阻尼系数C的变化不敏感，这表明M较小的机翼具有更好的工作稳定性。

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  • 来源
    《International journal of aerospace engineering》 |2019年第2期|5151808.1-5151808.12|共12页
  • 作者

    Zhu Jianyang;

  • 作者单位

    Wuhan Univ Sci & Technol, Inst Robot & Intelligent Syst, Wuhan 430081, Hubei, Peoples R China|Wuhan Univ Sci & Technol, Hubei Key Lab Mech Transmiss & Mfg Engn, Wuhan, Hubei, Peoples R China;

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