【摘要】 介绍了2021年亚洲物理奥林匹克竞赛的虚拟实验题目“悬臂梁弹性”,给出了竞赛组织者公布的标准解答与软件实际操作结果.微悬臂梁传感广泛应用于纳米材料的力热性质检测，本虚拟实验模拟了各种抖动因素对微悬臂梁传感的影响，利用单层和双层微悬臂梁实现了对纳米结构应力、温度、分子吸附力的检测，对国内相关虚拟仪器设计、中学竞赛以及大学虚拟实验教学具有借鉴意义.更多还原

【Abstract】 The first virtual experiment question “Elasticity of Cantilever” of the 21st Asian Physics Olympiad was introduced, the standard solution and software operation were given by the competition organizer for learners’ reference. Microcantilever beam sensor was widely used in the detection of nanomaterials’ mechanical and thermal properties. This virtual experiment successfully simulated the influence of various jitter factors on the microcantilever beam sensor. The detections of stress, temperature and molecular adsorption force of nanostructure were realized by using single-layer and double-layer microcantilever beams. It could be the reference for the design of relevant virtual instruments, physics competition in middle school and virtual experiment teaching in university.更多还原