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来源：百度知道 编辑：UC知道 时间：2024/05/28 01:06:30
淬透性是衡量高级汽车齿轮钢质量的一个重要的指标，就如何提高齿轮钢的淬透性众多学者做了大量的研究,建立了许多淬透性的预测模型，但是预测效果都不理想。为进一步研究钢材的淬透性,论文引进主成份分析法和多元线性回归分析法，以matlab为工具编写程序分析计算，分别建立了淬透性值J9和J15的预测模型，并对模型的精确度做了检验。检验结果表明J9的预测模型能够把预测值的相对误差控制在5%以内，J15的预测模型能够控制在3%以内。预测精度有了显著的提高。
The hardenability is a weight high-quality automobile gear steel quantity important target, how to enhance the gear steel the hardened numerous scholars have done the massive research, has established many hardened forecast model, but the forecast effect is not ideal. To further study the steel products the hardenability, the paper introduces the main ingredient analytic method and the multi-dimensional linear regression analytic method, take matlab as the tool write program analysis computation, has established hardened value J9 and the J15 forecast model separately, and has made the examination to the model precision. The check result indicated that J9 the forecast model can control the predicted value relative error in 5%, the J15 forecast model can control in 3%. The forecast precision had the remarkable enhancement.