The high - density polyethylene pipe is a new type of tubing 雨水管所采用的高密度聚乙烯管是一種新型管材。
This paper points out the main factors affecting the abrupt changes of the lateral stiffness and shear forces near the transfer storey are the stiffness of peripheral tube and the level of transfer storey by the analysis of the abrupt changes in 10 types of tube structure 通過對10種帶轉(zhuǎn)換層筒體結(jié)構(gòu)轉(zhuǎn)換層附近剛度和剪力分布突變的計(jì)算分析,指出外筒剛度和轉(zhuǎn)換層設(shè)置高度是影響帶轉(zhuǎn)換層筒體結(jié)構(gòu)剛度和剪力分布突變的主要因素。
The paper mainly simulates the producing process of tubes of small diameter , medium diameter and big diameter . it uses a terminational simulation method to study the producing capacity of these three types of tubes , the using rate of the machines and the occupying state of the machines " buffer - ins of the production line 論文針對小口徑、中口徑、大口徑的高壓鍋爐管的生產(chǎn)過程進(jìn)行終止型仿真,得到精整線加工這三種型號鋼管的加工能力,各機(jī)組的利用率,各機(jī)組輸入緩沖區(qū)的占用情況。
It compares and optimizes the means of the arrangement of the machines and the assignment of the workers of every type of tubes . the paper also studies the optimized systems considering the random elements of the machines " failures . it gets the confidence intervals of the optimized systems " producing capacity based on 95 % degree of confidence 對于每種型號鋼管的加工過程,進(jìn)行流水線上各機(jī)組配備和各工位工人分配的比較和優(yōu)化,并對優(yōu)化后的系統(tǒng)考慮機(jī)組發(fā)生故障的隨機(jī)因素進(jìn)行進(jìn)一步的仿真研究,運(yùn)用經(jīng)典的數(shù)理統(tǒng)計(jì)的方法,得出系統(tǒng)的加工能力在95置信度的置信區(qū)間。