This paper introduces some concepts and calculation methods,such as primary qualification rate of welding,equivalent welded joint and qualification rate of equivalent welding.
介绍了焊接一次合格率、当量焊口、当量焊接合格率等概念及其计算方法。
Finally, the formula to calculate the equivalent people's number influenced by the noise is put forward.
根据Weber-Fechner法则建立了反映铁路环境噪声对人们影响程度的数学模型, 进一步基于模糊积分给出了综合评价三个时段内铁路环境噪声对人们影响的数学方法,最后提出了受铁路环境噪声影响的当量人数计算公式。
本网站所收集内容来自网友分享仅供参考,实际请以各学校实际公布信息为主!内容侵权及错误投诉:1553292129@qq.com
CopyRight © 2020-2024 优校网[www.youxiaow.com]版权所有 All Rights Reserved. ICP备案号:浙ICP备2024058711号