蝈蝈-树蛙生物脚垫摩擦力连续测试数据

数据面向自然界中的液桥粘附现象，为测量蝈蝈和树蛙脚掌的摩擦力，搭建专用实验平台。实验台采用两个悬臂梁叠加方式搭建，悬臂梁上贴有应变片搭建的电桥电路，通过将采集的电桥电路电压与悬臂梁所受力做对比，标定出力与电压之间关系。最终得到法向力和摩擦力量程为 10000mN，最小分度值为 0.2mN 的测力平台，采样频率 10 Hz。为了模拟蝈蝈和树蛙脚垫在自然条件下的接触，在 1mN 的法向载荷下，蝈蝈和树蛙脚垫和光滑的玻璃基底之间进行了连续的摩擦试验。在玻璃基底反复向脚垫的远端方向滑动时，以模拟其爬行步骤。在测试中， 将脚掌放置于测试表面，滑动脚掌得到其摩擦力数据，测量中保持法向力为 1mN，抬起脚掌与基底分离后将脚掌放置于测试表面干净部位并重复上述测量操作，并得到脚垫滑动次数与摩擦力的关系曲线。数据量为700KB。This dataset focuses on the liquid bridge adhesion phenomenon in nature. A dedicated experimental platform was constructed to measure the friction forces of the foot pads of bush crickets and tree frogs. The platform was built by stacking two cantilever beams, with Wheatstone bridge circuits assembled from strain gauges attached to the beams. The relationship between force and voltage was calibrated by comparing the collected bridge circuit voltages with the forces applied to the cantilever beams. The final force-measuring platform has a measurement range of 10000 mN for both normal and friction forces, with a minimum resolution of 0.2 mN and a sampling frequency of 10 Hz. To simulate the natural contact state of the bush cricket and tree frog foot pads, continuous friction tests were conducted between their foot pads and a smooth glass substrate under a normal load of 1 mN. The glass substrate was repeatedly slid toward the distal end of the foot pads to mimic their crawling movements. During the tests, the foot pads were placed on the test surface and slid to collect friction force data, while the normal force was maintained at 1 mN. After lifting the foot pads to separate them from the substrate, the pads were placed on a clean area of the test surface, and the aforementioned measurement process was repeated. The relationship curves between the number of pad sliding cycles and friction force were thus obtained. The total size of this dataset is 700 KB.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于液桥粘附现象，通过搭建专用实验平台，测量了蝈蝈和树蛙脚掌在光滑玻璃基底上的连续摩擦力。实验在1mN法向载荷下进行，模拟自然爬行步骤，获取了滑动次数与摩擦力的关系曲线，数据量为约700KB。