1) variable amplitude
变幅
1.
The experiment on fatigue properties of one-side covering plate lap joints under constant amplitude and variable amplitude loads was carried out.
对单面盖板搭接节点在常幅和变幅荷载下的疲劳性能进行了试验研究,分析了在常幅和变幅荷载下疲劳断口的宏观和微观特征,结果表明两者基本相似。
2.
A study on the cumulative fatigue damage of plain concrete under biaxial compression is conducted basing on the experiments of concrete specimens subjected to constant and variable amplitude cyclic loading with constant confined pressure.
本文在对混凝土立方体试件进行定侧压下双轴等幅与变幅抗压疲劳试验的基础上,研究了素混凝土双轴抗压疲劳累积损伤性能。
3.
In terms of variable amplitude fatigue testing data of two stage and two dimensional random cyclic loading,the results of experiment verification of two dimensional probabilistic Miner′s rule (TPMINER) are presented.
由二级和二维随机变幅疲劳试验数据，对二维概率ＭＩＮＥＲ准则进行了验证，表明二维概率ＭＩＮＥＲ准则能较准确地进行变幅疲劳寿命的可靠性预测，有较好的工程应用价
2) strain amplitude
应变振幅
1.
Influence of different boundary conditions and strain amplitudes on the structural internal friction of anisotropic laminated damped structures;
不同边界条件和应变振幅对各向异性层合阻尼结构内耗的影响
2.
Influences of strain amplitude on damping capacity of SiC_p/Al composite;
SiC_p/Al室温阻尼性能与应变振幅的相关性
3.
According to endochronic theory, the relationship between attenuation and strain amplitude of rock samples can be briefly at intermediate strain levels by introducing an inelastic parameter α.
根据内时理论,简要推导了在中等应变条件下,岩石衰减与应变振幅的用非弹性参数α表示的具体关系式。
3) variable amplitude loading
变幅载荷
1.
In the present study, the fatigue tests under tension-tension variable amplitude loading (VAL) are carried out on 45 carbon steel, which is similar to the AISI 1045 steel, to investigate the probability distribution of fatigue life under VAL and investigate the validity of a new simulation model proposed in the paper for the fatigue test and the probability distribution of fatigue life under VAL.
根据 45钢切口件疲劳寿命表达式中疲劳抗力系数和疲劳门槛值物理意义及概率分布 ,提出了一种新的模拟 45钢切口件变幅载荷下疲劳寿命实验及其分布的方法 ,并与拉 -拉变幅载荷下的实验结果进行了比较。
2.
The fatigue life with given survivability under variable amplitude loading is predicted,and checked by simulating test using Monte Carlo method.
预测了变幅载荷下给定存活率的疲劳寿命，并用蒙特卡洛法模拟变幅载荷下疲劳试验进行了验证。
4) Ultrasonic horn
变幅杆
1.
Unified treatment of ultrasonic horn characteristics based on four-end network approach;
四端网络法统一变幅杆的性能参量
2.
In order to enhance the material removal rate in ultrasonic machining,based on model analysis and harmonic response analysis of ANSYS,the shape and vibration length of the ultrasonic horn was optimized by using optimum design of ANSYS,and a new kind of ultrasonic horn with large amplitude ratio and satisfying promised stress was designed.
以提高超声加工中的材料去除率为目的,基于ANSYS有限元模态分析、谐响应分析模块,利用ANSYS优化设计方法对变幅杆的形状与谐振长度进行优化,完成了在满足许用应力条件下具有大振幅比的新型变幅杆设计。
3.
Ultrasonic horn is one of the most important parts in the ultrasonic oscillation, its primary effect in the oscillation system is to blow up the particle displacement and velocity in the mechanical vibrancy, centralize the ultrasonic energy on a lesser acreage.
超声变幅杆是超声振动系统中一个重要的组成部分,它在振动系统中的主要作用是把机械振动的质点位移或速度放大,并将超声能量集中在较小的面积上,即聚能作用。
5) amplitude transformer
变幅杆
1.
The study of the performance of vibration energy transmission in the ultrasonic amplitude transformer;
功率超声变幅杆振动能量传输性能的研究
2.
Finite element analyses of the ultrasonic amplitude transformer
超声变幅杆的设计及有限元分析
3.
Key parts including piezoelectric transducer and amplitude transformer with a cylindrical hole in the center,and flexural vibration disk are analyzed and calculated.
提出了珩磨杆、珩磨头体均不振动的设计思想,分析计算了中心有圆柱孔的压电换能器和变幅杆,以及弯曲振动圆盘等关键部分。
6) strain amplitude
应变幅
1.
Low cycle fatigue characteristic of 16MnR under stress control at elevated Temperature is investigated, relations between young's modulus, total strain amplitude, cyclic hysteresis energy and cycles, magnitude of stress is discussed to understand behavior of stress-strain at elevated temperature.
研究 16MnR材料 30 0℃环境下的低周疲劳特性 ,讨论材料中温环境下弹性模量、总应变幅、塑性应变能与循环次数和应力水平的关系 ,深入认识 16MnR材料中温环境下低周疲劳的应力应变行为。
2.
Straining electrode technique has been utilized to study the effects of strain amplitude, strain rate and applied potential on electrochemical corrosion process of defoming metals.
采用应变电极技术研究了应变幅、应变速率与外加电位对形变中金属电化学腐蚀过程的影响。
3.
The other way reaches the fatigue life by the strain amplitude of the fatigue hot-spot which is observed by material s strain amplitude-life curves.
一种是现在应用比较广泛的首先计算应力强度因子,然后利用PAIRS裂纹扩展速率公式来计算;另一种是首先求得材料的应变幅-寿命曲线,然后根据实际结构中疲劳热点处的应变幅来计算疲劳寿命。
补充资料：应变振幅
分子式：
CAS号：
性质：一个应变周期中，最大应变和最小应变之差的二分之一，常用εa表示。这是在交变应力作用下出现的。也称极限应变平均差。该值在动态力学的振动测量、在设计疲劳试验的加载形式时都是要考虑的参数之一。
CAS号：
性质：一个应变周期中，最大应变和最小应变之差的二分之一，常用εa表示。这是在交变应力作用下出现的。也称极限应变平均差。该值在动态力学的振动测量、在设计疲劳试验的加载形式时都是要考虑的参数之一。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条