三峡升船机塔柱链孔部分光弹性研究

Photoelasticity Study on the Part of Chain Hole in the Column of Vertical Ship lifting Machine of the San Xia Dam

应用三维光弹应力冻结切片技术，对三峡升船机塔柱链孔部分的应力集中现象进行了分析研究，其切片的等差线及等倾线条纹均采用计算机数字图象处理技术处理，因此计算结果具有较高的精度．

The paper applies the technology of three D photoelasticity to study the stress concentration on the part of chain hole in the column of vertical ship lifting machine of the San Xia Dam. The isochromatic fringes and isoclinic fringes desived from which are processed by utilizing digital image processing and computer graphics technique, and gets results with high precision. All experimental data are agreeable to the data obtained by limit element.