Basing on SYSWELD software, stress of in-service welding joint of X70 pipeline steel has been simulated, and residual stress of in-service was compared with routine welding. 采用SYSWELD焊接模拟软件对X70级管道在役焊接接头应力进行模拟,并将在役焊接残余应力与常规焊接进行对比。
This paper introduced a neural network adaptive PID controller in the roll electro-hydraulic position system, and simulated its control effect. By contrast with routine PID controller advantages of it were proved. 本文在水舱试验摇摆台电液位置系统中引入一种神经网络自适应PID控制器,并对其控制效果进行仿真研究,通过与常规PID控制的效果进行对比,来证明其优越性。
Steps of simulated operation were clear and definite, and it was very similar to routine operation. 进行乳突根治的模拟手术,步骤明确,与常规的手术有极相似特性。