Theoreticalerror of curved surface by nc processing is analyzed based on the principle of nc processing of curved surface.
从曲面的数控加工原理出发，分析了曲面数控加工的理论误差。
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The results show that the calculation method of static equivalent wind loads is suited to along-wind force, but is in some theoreticalerror to across-wind force.
The theoreticalerror in five axis NC machining, which is resulted from approximating the perfect continuous tool path with discrete linear segments, is strictly analyzed.