Theoretical and Applied Mechanics Letters （中文名刊名《力学快报》）2011年创刊，双月刊，是国际化的快报类英文期刊，期刊旨在快速、精炼地报道所有理论和应用力学及相关学科的重要的原创性成果。
长久以来动物的飞行吸引着人类的兴趣，从模仿、仿生到原理都有着极大的理论和实践的需求。其中扑翅昆虫的复杂翅膀结构，尤其对于研究昆虫翅膀的灵活性是一个巨大的挑战，也是当下的一个研究热点。Prof. Kai Schneider小组在研究大黄蜂的空气动力学特性过程中，使用Mass-Spring系统来模拟超薄、由翅脉支撑的带有薄膜结构的翅膀。通过数字求解不可压NS方程研究翅膀形变对大黄蜂的空气动力学效率的影响。结果显示通过优化翅膀的力学特性，可以获得更高的飞行功效以及升功比。该发现对于设计微小型飞行器设计有极大的促进。
Influence of wing flexibility on the aerodynamic performance of a tethered flapping bumblebee Hung Truong, Thomas Engels, Dmitry Kolomenskiy, Kai Schneider Theoretical & Applied Mechanics Letters, 10 (2020) 382 Abstract: The sophisticated structures of flapping insect wings make it challenging to study the role of wing flexibility in insect flight. In this study, a mass-spring system is used to model wing structural dynamics as a thin, flexible membrane supported by a network of veins. The vein mechanical properties can be estimated based on their diameters and the Young's modulus of cuticle. In order to analyze the effect of wing flexibility, the Young's modulus is varied to make a comparison between two different wing models that we refer to as flexible and highly flexible. The wing models are coupled with a pseudo-spectral code solving the incompressible Navier–Stokes equations, allowing us to investigate the influence of wing deformation on the aerodynamic efficiency of a tethered flapping bumblebee. Compared to the bumblebee model with rigid wings, the one with flexible wings flies more efficiently, characterized by a larger lift-to-power ratio.