UC知道求中文翻译成英文，不要用Google之类的软件翻译
来源：百度知道 编辑：UC知道 时间：2024/06/17 15:46:26
矫直机压弯量的计算有过一些近似的方法,在提高精确度的要求下已经失去使用价值。在国外已有计算机用压弯量数学模型的开发使用,国内也已开始这方面研究工作[1]。数学模型的精确性及其使用的简便性对矫直效率影响较大,对引进的微机控制矫直机的性能发挥有重要意义。本文为探寻简单精确广泛实用的数学模型,提出一种包括解析与数值计算,将弹复量与残留量分开,再将残留量与假想外力作用结果等效处理后所得各压弯量的综合计算
法。方法是精确的,等效处理是近似的,计算结果是可用的。
1 矫直力计算
轧件在平行辊矫直机上矫直时,作用在辊子上的压力可根据各断面力矩平衡条件求得:
作用在上下辊子上的压力之和为:
式中,Mi为第i矫直辊处轧件所受弯矩;Pi为第i辊的矫直力。
上列各式表明,欲求得作用在矫直辊上的压力, 先确定各辊处轧件弯曲力矩值。弯矩值决定于弯曲变形量的大小,即决定于原始曲率与反弯曲率。
With the technology, more and more high-quality sheet metal, straightening has become an important and indispensable process. Straightening machine parameters are reasonable force to design and the use of straightening machine on the basis of how specific the process of straightening straightening, bending moment and the power transmission and the actual straightening of the program link is an urgent need to resolve technical issues To improve the quality of straightening plates are also of great significance. With the computer set-bending amount of straightening machine (commonly known as reduction) of the exact needs of a preliminary analytical methods and numerical methods. And when large deflection bending to resume missile deflection and residual deflection separate calculation, calculation residue in the deflection, as a hypothetical external force generated by the equivalent of the deflection, and then equivalent to the deflection into the deflection and elastic-plastic defle