pressure-limiting valve spring

Effect of media flow velocity on limit pressure of pipes during in-service welding;

介质流速对在线焊接管道极限压力的影响

Finite element simulation of limit pressure pipeline with cracks using critical crack-tip-opening-angle;

以临界CTOA为参量的含裂纹管道极限压力有限元模拟

Based on the numerical results,the remaining strength factor of the pipe can be obtained and limit pressure can be predicted.

运用有限元法对不同壁厚的管道进行在线焊接时的温度场进行了数值模拟,内部介质流动对焊接温度场的影响通过确定介质与管壁的换热系数来考虑,并根据温度计算结果,获得管道的剩余强度因子,进而获得管道的极限压力。

Objective: To study the appearance of the cadaver temporomandibular joint(TMJ) discs under confining indentation.

方法:将新鲜颞下颌关节盘分区围限压缩,在不同时间观察其扫描电镜表现。

Crushing and fractal behaviors of quartz sand-gravel particles under confined compression;

侧限压缩下石英砂砾的颗粒破碎特性及其分形描述

A confined compression test and a direct shear test were used to investigate the crushing behavior of quartz coarse sand and fine gravel particles under different compressive stress,and measure the breakage by B_(15),B_(6o),B_g andB_r.

本文利用侧限压缩试验和直剪试验研究各级应力下石英粗砂和细砾的颗粒破碎特性和强度特性,运用4种破碎率B_(15)、B_(60)、B_g。

Experiments of pressure limiter as one part of common rail pipe were carried out in the paper based on the study of high-pressure common rail system, and experiment results were analyzed too.

在电控高压共轨系统研究的基础上,对共轨管部件限压阀进行了试验研究,并对试验结果进行了分析,最后对自主开发的限压阀特性进行试验,并提出压力控制故障模式下的程序运行流程,从而为共轨系统故障诊断奠定了基础。