The dynamic effects due to vibration should be taken into account by the designer if fatigue failure is to be avoided.
为了避免弹簧的疲劳破坏，设计者应对弹簧由振动所引起的动力影响加以考虑。
The primary cause of breakage is that the dynamic stress exceeded the allowable fatigue limit of the beam, and another cause is that the structure of the beam is unreasonable.
通过计算证明引起断裂的根本原因是动应力超过了梁的许用疲劳极限，另一原因是梁的结构不合理。
Excessive clearance of mechanism joint pair will cause abnormal vibration and noise, accelerate fatigue and wear and seriously affect the dynamic performance of machine.
机构铰接副处过大间隙将引起异常的振动与噪声，加速了疲劳与磨损，严重地影响了机器的动态性能。
The thought of this paper is to discuss on and analysis to dynamic response of HSMS under impact load, and estimate its mean life based on noted stress fatigue design method.
本文的主导思想是讨沦和分析冲击载荷下螺旋弹簧质量系统的动态响应，并应用名义应力疲劳设计方法估计其平均寿命。
High elasticity is the premise of low hardness for top roller, it can improve instantaneous dynamic circularity, extend the time of the elasticity fatigue resistance, improve yarn forming quality.
胶辊低硬度必须以高弹性为前提，才能提高胶辊瞬时动态圆整度，延长抗弹性疲劳时限，达到稳定、提高纺纱质量的目的。
They are mainly concerned with the tensile and compressive behavior, energy absorption, dynamic impact, failure criterion and constitutive relation, creep, fatigue and fracture of these materials.
这些工作主要讨论了金属泡沫材料的拉伸、压缩、能量吸收、动态冲击、失效准则、本构关系、蠕变、疲劳和断裂等力学性能。
Make static stretching and dynamic fatigue experiment according to non-linear conclusion.
根据非线性分析的结论进行静态拉伸、动态疲劳实验。
There may be non linear dynamic characteristics during the evolution of the surface Low Cycle Fatigue (LCF) cracks system.
低周疲劳表面裂纹演化可能具有非线性动力学特征。
Analysis of structural dynamic performance and response is the foundation to estimate fatigue life.
薄壁结构的动力特性及动态响应分析是声疲劳分析以及寿命估算的基础。
The static and dynamic testing and assessment mode of driving fatigue is also established.
建立驾驶疲劳的静态和动态测试与评价模式。
Residual strength model is a proper methodology to describe the dynamic fatigue behavior of mechanical component.
剩余强度模型在描述试件的动态疲劳行为方面是一种比较切合实际的方法。
It is proposed that mean stress effect should be divided into two aspects, i. e. static effect and dynamic effect for fatigue under complex loading.
对于复杂载荷下的疲劳问题，应该把平均应力效应分为“静态效应”和“动态效应”两个方面。
The time domain nonlinear dynamic analysis of a steel catenary riser was introduced for fatigue life prediction.
研究了钢悬链立管时域非线性动力分析用于疲劳寿命预估。
The fatigue behavior of cement-sodium-silicate-grouted soil is investigated by cyclic loading test of dynamic asymmetric sine wave load.
采用载荷控制、非对称正弦波动态载荷变化方式对水泥土进行疲劳载荷试验。
The purpose of this thesis is to analyze the characteristic parameters of sEMG during muscle static and dynamic contractions, and to study sEMG characteristics of muscle fatigue.
本文旨在通过分析肌肉在静动态收缩的过程中表面肌电特征参数的变化，研究肌电信号中的疲劳特征。
Then the dynamic ice force researches on both vertical and conical structures in Liaodong Bay are presented, which form the foundation of quantitatively calculating the structural fatigue life.
奉文重点讨论了渤海锥体与圆柱抗冰结构动冰力模型的进展，为定量计算结构疲劳寿命创造了条件。
In order to avoid the (fatigue) fracture, the dynamic characters and stiffness of the multi-layer leaf spring are essential to be analyzed.
为了防止板弹簧疲劳折断、开裂，需要对其动力学特性及其刚度进行分析。
Based on the results obtained from fatigue tests under pulsating internal pressure, the mechanism of dynamic autofrettage of thick wall-cylinder components is studied in this paper.
本文基于脉动内压疲劳试验结果，对厚壁圆筒构件的动态自增强原理进行了分析研究。
The paper describes the feasibility of the new model with the calculation cases and demonstrates the influence of inspection and repair to the dynamic fatigue reliability of structures.
结合算例阐述了本文提出方法的可行性，验证了检测、维修结果对结构动态疲劳可靠性的影响。
Fatigue crack characteristics are investigated based on the dynamic response simulation by finite element and the dynamic response experiments for tensile-shear spot-welded specimens.
利用三维有限元模拟和动态响应试验对点焊接头疲劳裂纹萌生和扩展特性进行了研究。
The results proved that there was close relationship between the restoration of heart rate and dynamic heart rate and the intensity of physical fatigue.
证明在体力劳动中，心率恢复期和动态心率与体力疲劳程度之间存在着密切的联系。
Then the characteristics of frequency variation during the fatigue crack propagation process are simulated by three - dimensional dynamic finite element analysis.
并利用三维动态有限元模拟了点焊接头疲劳裂纹扩展过程中频率变化特性。
The dynamic wavelet neural network method is applied to predict the fatigue residual life of the composite material. The predicting result is very close to the testing result.
本文采用动态小波神经网络方法，对复合材料疲劳剩余寿命进行了预测，结果与试验结果很接近。
Calculated result of dynamic characteristics and estimated result of fatigue life are coincident to the test one.
动态特性计算和疲劳寿命预估与试验结果相吻合。
The fatigue behaviour of continuous glass fibre mat reinforced polypropylene composites (GMT PPs) with different interfacial adhesion is investigated by dynamic fatigue tests.
采用动态疲劳试验研究了不同界面粘结状况的G MT- PP复合材料的疲劳行为。
This paper applies ANSYS in computing the car wheels strength, simulates the dynamic cornering fatigue test and counts the fatigue life.
运用ANSYS软件对柳州钢圈厂某型号轿车钢圈进行有限元分析，模仿其动态弯曲疲劳测试试验并计算其疲劳寿命。
In this paper, the reliability of cranks was analyzed with static, dynamic reliability theories separately. It was derived that there was a safety working time for cranks in point of fatigue strength.
以通用曲柄压力机的曲轴作为分析研究对象，应用可靠性理论对其静态、动态可靠性做了分析描述，从疲劳强度的观点给出了曲轴的安全工作区。
Alternating stress produced by alternating dynamic ice force evidently results in the partial fatigue failure.
交变冰力引起的结构交变应力必将导致结构的局部疲劳损伤。
To test the dynamic property, this pneumatic fatigue test system was identified by a recursive BP neural network.
为了考察该系统的动态性能，采用递归BP神经网络对该系统进行辨识。
To test the dynamic property, this pneumatic fatigue test system was identified by a recursive BP neural network.
为了考察该系统的动态性能，采用递归BP神经网络对该系统进行辨识。
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