Abstract
In order to ensure the normal use of the tensioned membrane structure, it is necessary to effectively detect the tension applied to the tensioned membrane surface. In this paper, a top-projection membrane surface tension measuring instrument with fixed boundary was designed. During the measure process, the force and the apex displacement were measured simultaneously to obtain the calibration curve group of force and abutment displacement. Compared with the traditional apex method, the measuring instrument eliminates the influence of the membrane structure boundary on the measurement results, and the measurement results were accurate and reliable. The correctness of the device is verified by numerical simulation and experimental results. Theoretically solved the technical problem of rapid measurement of membrane surface tension, and obtained stable results in actual measurement, thus providing a new method for membrane surface tension measurement.
Highlights
In order to ensure the normal use of the tensioned membrane structure
effectively detect the tension applied to the tensioned membrane surface
the measuring instrument eliminates the influence of the membrane structure boundary on the measurement results
Summary
In order to ensure the normal use of the tensioned membrane structure, it is necessary to effectively detect the tension applied to the tensioned membrane surface. 状是固定的。如果整体或部分地改变边界条件就会改变整 公式P=2Tsin(α/2),δ=(PL/4T)可知,由单一信号P确定T, 个膜的形状,因此,我们可以认为每个曲面都是特定边界 测力器上可确定δ,由δ和P可求得张力T[9]。 条件下的产物[1,2]。
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