Flight Efficiency and Control in 12 Species of Drosophila and Their Mutants

12种果蝇及其突变体的飞行效率和控制

• 批准号: 0933332
• 负责人: Z. Jane Wang
• 金额: $ 20万
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0933332&HistoricalAwards=false
• 关键词: Flight; Efficiency; Control; 12; Species

CBET - 0933332 Wang, Z. JaneThis award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).This study plans to investigate energetic costs in the steady free flight of Drosophila, and how the mechanical stability of 3D flapping flight affects maneuvering. The PIs will further investigate the trade-off between energetic demands and maneuverability during insect free flight. A major experimental advance planned is the application of state of the art data collection and imaging techniques to track untethered insect flight in 3D and obtain the wing and body kinematics necessary for aerodynamic analysis. Analysis of many acquired data sets will allow determination of statistical averages and deviations in wing stroke parameters corresponding to a given maneuver, vital for prediction comparisons. Determining the stability criteria for 3D free flight involves algorithm development and optimization with dynamic models of 3D flapping flight. The PIs will analyze correlations between optimal solutions across different species of Drosophilacharacterized by different wing and body morphologies. Understanding the solutions and maneuvering tricks used by insects will offer new insights into mechanical designs for flapping flight. This novel combination of experimental and theoretical techniques will carry out three focus studies: 1) a comparative study of hovering flight energetics in 12 species of Drosophila, 2) comparative study between wild-type and mutant insects, and 3) comparative study of control strategies in steady and maneuvering flight. The PIs plan to make the tracking algorithms and make them available online through their groups web sites. The PIs will provide a tutorial to guide the user through the kinematic data extraction process. Wang will continue to organize mini-symposia on fluid dynamics of locomotion, deliver public lectures on insect flight, and develop university courses for teaching mathematical modeling and biofluid dynamics. Cohen will continue to organize the semiannual New York Complex Matter Workshops and lead a collaboration between Cornell and the Harlem Children's Zone with the aim of improving science education at K-12 schools that cater to minority and economically disadvantaged communities in New York city. The PIs have also been asked to conduct a public outreach presentation through the Ithaca Light in Winter festival with the aim of educating the public about the results associated with this work.

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。本研究计划研究果蝇稳定自由飞行的能量消耗，以及三维扑翼飞行的机械稳定性如何影响机动。pi将进一步研究昆虫自由飞行时能量需求和机动性之间的权衡。一个主要的实验进展计划是应用最先进的数据收集和成像技术来跟踪无系昆虫的三维飞行，并获得空气动力学分析所需的翅膀和身体运动学。对许多获得的数据集的分析将允许确定与给定机动相对应的翼冲程参数的统计平均值和偏差，这对于预测比较至关重要。三维自由飞行稳定性判据的确定涉及三维扑翼飞行动力学模型的算法开发和优化。pi将分析不同种类果蝇的最优解之间的相关性，这些果蝇具有不同的翅膀和身体形态。了解昆虫使用的解决方案和机动技巧将为扑翼飞行的机械设计提供新的见解。该实验与理论相结合的新方法将开展三个重点研究：1)12种果蝇悬停飞行能量学的比较研究；2)野生型和突变型昆虫的比较研究；3)稳定飞行和机动飞行控制策略的比较研究。pi计划制作跟踪算法，并通过其团体网站将其发布到网上。pi将提供一个教程，引导用户通过运动学数据提取过程。王将继续组织关于运动流体动力学的小型研讨会，发表关于昆虫飞行的公开讲座，并开发教授数学建模和生物流体动力学的大学课程。科恩将继续组织半年一次的纽约复杂问题研讨会，并领导康奈尔大学和哈莱姆儿童区之间的合作，旨在改善K-12学校的科学教育，以满足纽约市少数民族和经济弱势社区的需求。pi还被要求通过伊萨卡冬季之光节进行公众宣传，目的是向公众宣传与这项工作相关的成果。