The remote monitoring for the dynamic strain of bridge is very important for its safety.
桥梁动态应变的远程监测对于确保桥梁安全运行具有十分重要的意义。
Provide both static and dynamic strain sample holders that conform to international standards.
配备有符合国际标准之静态与动态试片夹具。
There is similar relationship between dynamic strain of expansive soil and the number of loading repetition.
膨胀土的动应变与荷载作用次数之间也有类似的关系。
An array sensing technique of fiber grating for the dynamic strain measurement is demonstrated in this paper.
研究了一种用光纤光栅测量动态应变的阵列传感技术。
It analyses the measuring principle of dynamic strain gauge and introduces the principle of adjusting balance.
分析了动态应变仪的测量原理和调平衡技术的原理。
The paper has analyzed the dynamic strain measurement system and verified the functions of it through experiment.
这里对动应变测量系统进行分析,并在实测中验证了该测量系统的功能。
The tests include compaction test, unconfined compression test, dynamic strength and dynamic strain test and so on.
包括击实试验、无侧限强度试验、动应变和动强度试验等。
Numcrical calculations show that the impact compression effect of spring is important for dynamic strain of the fixed end.
分析结果表明,考虑弹簧冲击压缩效应与否,对弹簧固定端动态应变历程有很大影响。
The objective of this program is to investigate the biological effect of dynamic strain on human periosteal cells in vitro.
探讨动态力学应变对体外分离培养的人骨膜细胞的生物学效应。
The dynamic strain aging of low carbon steel is the main reason of low plastic strain ratios value of the ferrite rolled strip.
低碳钢的动态应变时效行为是导致其铁素体轧制薄板塑性应变比值较低的主要原因。
Analyzed the conditions applying for the dynamic strain measurement of fiber grating sensor, and did some correlative experiments.
分析了适用于动态应变测量的光纤光栅传感器所应满足的条件,并进行了相关实验。
But it's difficult to demodulate the light signal and encapsulate the FBG when the dynamic strain inside the concrete is measured.
但是将光纤光栅传感器埋入混凝土中,进行动态应变测量,尚存在诸如解调、封装等工程技术难题有待解决。
The experimental results showed that the dynamic strain has feature of cyclic creep. Cyclic loading affected the creep and creep speed.
结果显示动态应变呈循环蠕变状态,蠕变的大小、速度与循环应力幅值有关。
The dynamic strain is an important mechanic parameter of the structural response produced in the target structure bombarded by electron beam.
动态应变是电子束辐照靶结构产生结构响应中的一个重要力学参数。
Through model experiments, reasonable decouple coefficient range and slot width are gotten, and unsymmetrical dynamic strain field is analyzed.
通过水泥砂浆模型实验,得到了理想的名义不偶合系数与切缝宽度,测试分析了不均匀的动态应变场。
A digital filtering method is proposed for compensation of the low frequency characteristics of piezoelectric dynamic strain measurement system.
针对采用压电元件的动态应变测量系统的低频失真问题,提出一种采用数字滤波器的低频特性补偿方案。
The structure and main specifications of the instrument designed for the measurements of both static and dynamic strain in soil are presented here.
设计了与这种传感器配用的,适合于动、静态测量的土壤应变仪,给出了它的主要性能指标。
This paper will research the method and devices of generating dynamic strain simulative signal from the working principle of dynamic strain amplifier.
从动态应变仪的工作原理出发,研究了动态应变模拟信号的产生方法及其设备。
The equipment to measure and record magnetostrictive includes the resistance strain slice, the dynamic strain device and the computer acquisition system.
测量和记录磁致伸缩的设备包括电阻应变片,动 态应变仪和计算机采集系统。
Aimed at popular bridge in the engineering, we build a piezoelectric bridge vibration model and analyze the vibration shape and distribution of the dynamic strain.
针对工程实践中常见的桥梁问题,建立了其在自由振动下的模型,分析了其前几阶振动模态下的振形和动态应变分布。
By measuring the dynamic strain of the cylinder and calculating the dynamic strain by finite element method, the impact internal pressure of experiment is determined.
通过对带裂纹厚壁筒试件外壁动应变的测定,和用有限元方法计算冲击内压下动应变的变化规律,求出了实验中所加的冲击内压。
Measuring apparatus can use general digital voltmeter with appropriate accuracy, but generating standard dynamic strain signal is a problem which hasn't been well solved.
测量仪器可用适当精度的通用数字电压表,而标准动态应变的产生则是尚未很好解决的问题。
Moreover, the functions between all ranges of strength, dynamic strain increase factor and strain rate are gained, and respective strain rate critical values are concluded.
给出了所有系列强度和应变动态增长因数与应变率之间的函数关系,求出各自的应变率临界值。
The calculation of the dynamic strain field caused by the seismic rupture lays a foundation for the calculation of seismic dynamic Coulomb failure stress field in the future.
地震破裂动态应变场的计算为将来实现地震动态库仑破裂应力场的计算奠定了基础。
Measuring the dynamic strain involves the constant modification of gain, as determined by the signal amplitude. This practice suffers from the complex test and the low accuracy.
在动态应变信号测试中,经常需要根据信号的幅值不断调整放大器的放大倍数,测量电路复杂,精度低。
This paper describes the development, design principle and main features of type YCD-1 ultra-dynamic strain gauge, and the application of it to strain testing in the near-blasting field.
介绍了YCD - 1型超动态应变仪的研制、设计原理和主要特点,及在爆破近区应变测试中的应用。
The static and dynamic strain tests are made for the buried tube at the scene. With the corresponding calibrated equations, the diametric displacements at the particular points are obtained.
并对现场埋设的管道进行静、动态应变测试,利用相应的标定方程获得特定点的径向位移。
A novel method of edge filter demodulation for fiber Bragg grating that use wavelength tunable laser was proposed. Real-time monitoring of the multiple points' dynamic strain could be achieved.
提出了利用波长可调谐激光器对光纤光栅进行边沿滤波解调的新方法,该方法可实现多个测点动态应变的实时监测。
In the paper, experiments in testing blast strain waves, generated from the explosion of some small cylindrical charge, were carried out in rock model using the ultra-dynamic strain testing system.
本文采用超动态应变测试系统,实测了小药量条形药包在岩石模型中爆炸产生的应变波,对测试到的耦合装药加载条件下介质中区产生的轴向和切向爆炸应变波信号进行了分析。
Vibration measurement and analysis of QTZ80 tower crane is conducted through dynamic strain test and experimental mode analysis. The correctness of theoretical analysis has been proved by the results.
采用动态应变测试和试验模态分析法对QTZ80型塔式起重机进行振动测试和分析,并通过实验结论验证其理论分析的正确性。
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