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工程设计中截面惯性短的计算,对于规则的几何图形(例如矩形),可很方便地用公式进行计算,但对于不规则的复杂截面,计算较烦琐,并往往须重复地进行核算。Lincoln惯性矩尺是计算惯性矩的一种辅助工具,使用该尺可将任一不规则的复杂截面,转换为惯性矩相等的矩形截面,从而可
The calculation of short-section inertia in engineering design can be easily calculated by the formula for the regular geometry (for example, rectangle), but it is more cumbersome to calculate the irregular complicated section, and often it needs to be calculated repeatedly. Lincoln Moment of inertia is an aid to calculating moment of inertia that can be used to convert any irregular, complex section into a rectangular cross-section of equal moment of inertia so that