杂志简介：《机床与液压》杂志经新闻出版总署批准，自1973年创刊，国内刊号为44-1259/TH，是一本综合性较强的机械期刊。该刊是一份半月刊，致力于发表机械领域的高质量原创研究成果、综述及快报。主要栏目：综述与分析、制造技术与装备、液压气动与专机、自动控制与检测、计算机应用与仿真、故障诊断与可靠性、技术改造与维修、经验交流、短讯与...
杂志简介：《机床与液压》杂志经新闻出版总署批准，自1973年创刊，国内刊号为44-1259/TH，是一本综合性较强的机械期刊。该刊是一份半月刊，致力于发表机械领域的高质量原创研究成果、综述及快报。主要栏目：综述与分析、制造技术与装备、液压气动与专机、自动控制与检测、计算机应用与仿真、故障诊断与可靠性、技术改造与维修、经验交流、短讯与...
作者：郭晓霞; 李陶陶; 黄家海; 权龙; 王胜国 刊期：2016年第06期
调速阀一般由定差减压阀和节流阀串联组成。当其工作在大压差、大流量场合下,布置在主回路上的减压阀压力损失大,会带来油液温升等问题。提出一种先导数字调速阀,主阀为流量放大原理插装阀,先导阀为由高速开关阀与定差减压阀串联组成的数字调速阀。高速开关阀为PWM控制数字阀,节流损失小、重复性好、抗干扰能力强。将定差减压阀应用在先导回路,...
作者：刘洋; 武兵; 黄家海 刊期：2016年第06期
轴向柱塞泵为流固耦合机械设备。工作时,振动特性较为复杂。使用特征线—快速傅里叶变换法(MOC-FFT)对柱塞泵中由流固耦合所引起的振动特性进行了研究。利用特征线法求解流固耦合振动偏微分方程(1),得到时域信号,再使用快速傅里叶变换法,可得到管道系统的固有频率。该方法既拥有特征线法针对耦合振动建模清晰,计算简便等特点;又利用快速傅里叶变...
作者：Si; HUANG; Wen-lang; ZOU; Jin-ju; ZHOU; Dong-ping; HE; Tian-yang; PENG 刊期：2016年第06期
In this paper, the discrete phase model （DPM） and semi-empirical wear model were used to simulatethe unsteady solid-liquid two-phase flows and wear in a centrifugal pump, to explore the solid particle movementand the wear of the pump. The liquid phase was solved by the fluid governing equations in the Euler coordin...
作者：Wen-si; DING; Xing-chao; WANG; Chang-tao; TANG 刊期：2016年第06期
The structure and working principle of a kind of permanent-magnet adsorption tracked wall-climbing ro-bot used in ship was analyzed in this paper. The robot can complete vertical climbing wall function when perma-nent-magnet adsorption tracked was driven by ac servo motor. In order to improve the load capacity and ob...
作者：Ge-qiang; LI; Shuai; WANG; Bing-jing; GUO; Yue-song; LI 刊期：2016年第06期
The axial flow fan is a kind of turbomachinery equipment to provide compressed gas and the statorblade adjusting mechanism is the key to the whole system. Taking the stator blade adjustment electro-hydraulicservo system as the research object, the traditional hydraulic servo system is vulnerable to oil pollution, hig...
作者：Yong-sheng; CHAO; Wen-lei; SUN 刊期：2016年第06期
Large quantities of data are accumulated in process planning for body in white （BIW）. To acquire thepotential and valuable process knowledge from these data, the rough set theory and association rule technique areintegrated to discover the useful correlations between the welding type and process requirements. The c...
作者：Xiao-xia; GUO; Tao-; tao; LI; Jia-hai; HUANG; Long; QUAN; Sheng-guo; WANG 刊期：2016年第06期
Flow control valve generally consists of constant pressure difference reducing valve and throttle valve.When it works under the condition of high differential pressure and flow, the pressure loss of reducing valve in-stalled in main loop will get increased and the hydraulic oil temperature will be increased as well. ...
作者：Jian-xin; ZHOU 刊期：2016年第06期
To improve the performance of PSO （particle swarm optimization） optimization algorithm, a new algo-rithm - CPSO （chaotic particle swarm optimization）was proposed. The algorithm chaotic search mechanismwas introduced to the particle swarm algorithm to increase the diversity of particle. In order to improve the dim...
作者：Ai-cheng; ZOU; Xiang-jun; JIANG 刊期：2016年第06期
The aim of this paper is to study the stress status of the bolt fastener in coupling under complex load-ings, the research result is greatly beneficial for the analysis of the failure of the screw bolt in coupling. Thethreads in the bolt and nut are modeled with accurately construct helical thread geometry and implan...
作者：Yu-; xin; WANG; Hang; YANG; Bao-hui; JIA; Yao-hua; LI 刊期：2016年第06期
This paper comes up with a cost rate function （CRF） aimed at the problem of hidden function systemmaintenance interval optimization of civil aircraft, and studs to propose the optimal preventive maintenance policymodel and solution in ＂Overhaul period＂ based on Weibull distribution, which finally achieves the bes...
作者：Yang; LIU; Bing; WU; Jia-hai; HUANG 刊期：2016年第06期
Axial piston pump is fluid-solid coupling mechanical equipment. Its vibration characteristic is compli-cated when working. This paper uses the characteristic line-fast Fourier transform method （MOC - FFT） in theplunger pump to study vibration characteristics caused by fluid-solid coupling. Using the MOC to solve th...
作者：Zhi-peng; ZHU; Yan-; zhu; YANG; Yun; HONG 刊期：2016年第06期
In the online measurement system based on line structured light, the key parameters of work-piece arecontained in point clouds collected from measuring system. According to the process characteristics of shaft free-forging, a method of extracting axis by ellipse fitting is introduced. The precision of axis is importa...
作者：Ming; XU; Xiao-yu; ZHANG; Guo-liang; HU; Gang; LI 刊期：2016年第06期
A fire water monitor driven by worm gear with bevel gear was designed based on the theoretical calcula-tions. The classification and features of fire water monitor were elaborated, and the design of whole structure andkey components of fire water monitor were discussed. Moreover, the jet characteristics and the influ...
作者：Sheng-yong; LI 刊期：2016年第06期
It is proposed in this paper the control system of a MEMS strong-link for PC authentication system,which is composed of MEMS strong-link, interface card and dedicated software. The strong-link is comprised of amulti-try counter-meshing gears （CMG） discrimination device based on micro electromeehanical system （MEMS...
作者：Hai-sheng; LIU; Zhong-ren; WANG; Gui-jie; LIANG 刊期：2016年第06期
The deformation behavior of BMC, machining in difference cutting depth were investigated using SEMand cutting force measurement system. Then new fracture and shear band information extraction method based onindependent component analysis （ICA） and fast Fourier transform （FFT） were used to analyze the original for...
