一、概述:
电液伺服疲劳试验机<简称试验机>主要用于测试金属、非金属及复合材料在室温(或高低温、腐蚀环境)下的动态特性,试验机可进行如下试验:
■拉伸、压缩试验
■裂纹扩展试验
由电气控制器、伺服阀、负荷传感器、位移传感器、引伸计与计算机共同组成的闭环伺服控制系统,可自动精确地控制试验过程,并自动测量试验力、位移、变形、扭矩、角度等试验参数。
试验机可实现能实现正弦波、三角波、方波、锯齿波、反锯齿波,脉冲波等波形,可进行拉伸、压缩、弯曲、低周和高周疲劳等力学试验。也可配置环境试验装置,完成不同温度下的环境模拟试验。
试验机操作灵活方便,移动横梁升降、锁紧、试样夹持均由按钮操作完成,采用*的液压伺服驱动技术加载、高精度动态负荷传感器和高分辨率磁致伸缩位移传感器测量试件力值和位移。全数字化的测控系统实现力、变形、位移PID控制,各控制之间可平滑转换。,试验软件在WINDOWS XP/Win7中文环境下工作,强大的数据处理功能,试验条件和试验结果自动存盘,显示和打印。试验过程全部纳入计算机控制,试验机是科研院所、冶金建筑、工、大专院校、机械制造、交通运输等行业理想的高性价比的试验系统。
I. Overview:
Electro-hydraulic servo fatigue testing machine
■Tensile and compression test
■Crack growth test
The closed-loop servo control system composed of electric controller, servo valve, load sensor, displacement sensor, extensometer and computer can automatically and accurately control the test process, and automatically measure test parameters such as test force, displacement, deformation, torque, angle, etc. .
The testing machine can realize sine wave, triangle wave, square wave, sawtooth wave, anti-sawtooth wave, pulse wave and other waveforms, and can perform mechanical tests such as tension, compression, bending, low cycle and high cycle fatigue. It can also be equipped with an environmental test device to complete environmental simulation tests at different temperatures.
The testing machine is flexible and convenient to operate. The lifting, locking, and sample clamping of the moving beam are all completed by button operations. It uses advanced hydraulic servo drive technology to load, high-precision dynamic load sensors and high-resolution magnetostrictive displacement sensors to measure the force of the specimen. Value and displacement. The fully digital measurement and control system realizes PID control of force, deformation, and displacement, and smooth transition between each control. , The test software works in the WINDOWS XP/Win7 Chinese environment, with powerful data processing functions, test conditions and test results are automatically saved, displayed and printed. The test process is fully integrated into computer control. The test machine is an ideal cost-effective test system for scientific research institutes, metallurgical construction, national defense and military industry, colleges, machinery manufacturing, transportation and other industries.
二、相关标准:
GB/T 2611-2007 《试验机通用技术要求》
GB/T16825.1-2008 《静力单轴试验机的检验第1部分:拉力和(或)压力试验机测力系统的检验与校准》
GB/T 16826-2008《电液伺服试验机》
JB/T 8612-1997《电液伺服试验机》
JB9397-2002《拉压疲劳试验机技术条件》
GB/T 3075-2008《金属轴向疲劳试验方法》
GB/T15248-2008《金属材料轴向等幅低循环疲劳试验方法》
GB/T21143-2007《金属材料准静态断裂韧度的统一试验方法》
HG/T 2067-1991 橡胶疲劳试验机技术条件
ASTM E399-09 金属材料线弹性平面应变断裂韧度Kic标准试验
ASTM E 断裂韧性的一种量度JIC的试验标准
三、本试试验设备的主要组成:
1、高刚度双立柱门式主加载框架;
2、智能恒压动力源;
3、全数字动静态控制系统;
4、中英文人机对话下位机操作应用软件;
5、研华工业计算机及机关打印机;
6、试验相关常规辅具
四、主要指标:
4. Main indicators:
型号:PWS | 10H | 25H | 50H | 100H | 250H | 300H | 500H | 1000H |
试验力KN(动静态) Maximum test force KN (dynamic and static) | ±10 | ±25 | ±50 | ±100 | ±250 | ±300 | ±500 | ±1000 |
载荷框架 Load frame | 两立柱 Two columns | 四立柱 Fourpillars | 四立柱 Fourpillars | 四立柱 Fourpillars | ||||
立柱有效宽度mm Effective width of column mm | 555 | 600 | 650×500 | 850×600 | 950×700 | |||
试验空间mm Test space mm | 800-1000 | 800-1000 | 1000 | 1500 | 1500 | |||
试验力测量范围 Test force measurement range | 动态2%~99%FS Dynamic 2%~99%FS | |||||||
力精度及波动度 Force accuracy and fluctuation | 优于示值1%;幅值波动度不大于各档±1%F.S Better than the indicated value by 1%; the amplitude fluctuation is not more than ±1% F.S for each file | |||||||
试验力分辨率 Test force resolution | 1/500000 码 1/500000 yard | |||||||
试验力示值精度 Test force indication accuracy | 动态±1%;静态0.5% Dynamic ±1%; static 0.5% | |||||||
位移测量范围 Displacement measurement range | 100mm(±50mm) 可选±75mm 100mm (±50mm) optional ±75mm | |||||||
位移测量分辨率 Displacement measurement resolution | 0.001mmm | |||||||
位移示值精度 Accuracy of displacement indication | 示值精度1%起±0.5%FS内 Indication accuracy is within ±0.5% FS from 1% | |||||||
变形Deformed | 示值精度2%起,±0.5%内 Indication accuracy starts from 2%, within ±0.5% | |||||||
频率范围Frequency Range | 标准机0.01-30HZ (可扩展50HZ) 静压支撑0.01-100HZ (静压支缸) Standard machine 0.01-30HZ (expandable 50HZ) Static pressure support 0.01-100HZ (static pressure support cylinder) | |||||||
主要波形 Main waveform | 正弦波、脉冲波,方波,锯齿波、随机波(主要由控制器支持) Sine wave, pulse wave, square wave, sawtooth wave, random wave (mainly supported by the controller) | |||||||
辅具 Assistive | 强迫平推夹具体,配拉伸棒材和边裁钳口 Forced flat push clamp concrete, equipped with stretched bar and side cutter jaws | |||||||
压缩辅具 Compression aids | ||||||||
环境箱 Environmental Box | 选配,高低温环境箱可根据用户要求定制 Optional, high and low temperature environment box can be customized according to user requirements |