本文叙述了在放大十倍的双圆弧齿模型上确定挠度和弯矩分布的试验研究结果。模型是用尿脘人造橡胶模压成的。在试验装置上对轮齿啮合轨迹上的不同点加载,并用波长为488nm的氨离子激光和三维的双曝光全息干涉测量法对齿面上126个点的挠度作了测量。采用了有限差分方程法根据挠度来确定沿齿宽和齿高方向的不同点的弯矩。 This paper describes the results of experimental studies to determine the distribution of deflection and moment on a double arc tooth model with a tenfold magnification. The model is made of urethane rubber. Different points on the gear meshing path were loaded on the test device, and the deflections of 126 points on the tooth surface were measured by using a double-exposure holographic interferometer with a wavelength of 488 nm. The finite difference method was used to determine the bending moment at different points along the tooth width and tooth height based on the deflection.