整体式叶轮主要振动形式是叶轮的弯扭振动。
The major shapes of the impeller are coupled bending and torsion.
桅杆的自振频谱密集，纤绳布置的不对称以及纤绳初应力的不同，使得弯扭振动为桅杆的主要振动。
The natural frequencies of the mast is very close; twisted vibration is the major vibration mode for the asymmetry of the guys layout and the difference of the guys' initial stress.
采用摄动法研究了楔形杆轴的固有纵扭振动，并且推导出了其固有纵扭振动的振型函数及频率特征方程。
The natural longitudinal or torsional vibration of a wedge-shaped shaft is studied with perturbation method. The vibration mode function and the frequency characteristic equation are derived.
利用六个动力系数来刻划半联轴器的力学行为，建立了轴承—转子—齿轮联轴器系统的弯扭振动力学模型。
The dynamic behavior of a half coupling is described by six coefficients, and the vibration model of bearing rotor system with a gear coupling is developed.
依据设计原则，利用模态刚度矩阵、模态质量矩阵和模态频率相似进行了扭振模拟机轴系的设计，扭振模拟机轴系前三阶固有特性与实际机组轴系扭振动特性基本一致。
By modal stiffness matrix, modal mass matrix and modal frequency, shaft units of simulator is designed. The former three steps natural characteristics are identical with the real units'.
为低频扭振型的振动切削应用于生产实践提供了参考数据。
All of these provide a reference date for the applications of vibration drilling with low frequency torsional vibration.
根据刚度耦合原理，并考虑轴系强迫激励进而建立了扭纵耦合强迫振动模型。
According to coupling principle and excited force of shafting system, a model of coupled torsional-axial forced vibration can be constructed.
结合面法向刚度大小的参数对纵向振动模态的影响比对弯曲、扭振模态的影响显著；
The parameters reflecting normal stiffness have more obvious effects on extensional vibration mode than those on flexural mode and torsion mode.
在研究齿轮轴系的弯扭耦合振动时，有两种常用的耦合模型，即力耦合模型和几何耦合模型。
In the study of lateral-torsional coupling vibration of a geared rotor system, two coupling models are available, namely force coupling model and geometry coupling model.
大开口船的弯扭耦合振动问题近年来愈来愈多地受到人们的重视。
The bending-torsion coupling vibration of ship hull attracts more attention in recent years.
理论研究与震害经验表明，地震时曲线桥梁会产生弯扭耦合振动。
Theoretical research and earthquake damage investigation indicate that there is bend torsion coupling vibration for curved bridge when earthquake occurs.
还需要在测扭振传感器获得的振动信号中把横振引起的信号分离出去。
It is also necessary to separate signals brought by transverse vibration from vibration signals, obtained by sensors used for measuring torsional vibration.
总结了近年来国内外对汽轮发电机组转子及轴系弯扭耦合振动问题的研究进展和成果，并对其进一步研究进行了展望。
The previous study for coupled lateral and torsional vibration of turbogenerator rotor and shaft system is reviewed and purpose for further study is provided.
基于转子动力学和齿轮啮合基本原理，建立了一般齿轮耦合轴系弯扭耦合振动方程。
Based on rotor dynamics and the basic principle of gear mesh, this paper sets up the lateral-torsional coupling vibration theory of a general geared rotor-bearing system.
振动台可以作水平谐振和扭振。
The vibrating table may perform horizontal and torsional harmonic vibrations.
系统阐述了大型船舶柴油机推进轴系振动的特点和规律，在此基础上建立了轴系纵扭耦合振动的系统矩阵理论计算模型。
On this foundation, a theoretical model based on system method for calculating coupled axial and torsional vibration of large ships diesel propulsion shafting is established.
平面L形高层建筑结构的刚度中心与质量中心偏离较大，在水平地震作用下平移振动与扭转振动扭耦合。
Torsional and lateral vibration of a high-rise building with L shape plan under earthquake will couple because of large distance between center of stiffness and center of mass.
本文建立了大型船舶柴油机推进轴系纵扭耦合振动计算的系统矩阵模型。
In this paper, a theoretical model based on system matrix method for calculating coupled axial and torsional vibration of large Marine diesel propulsion shafting is established.
对柴油机轴系扭振的研究，以往是先建立扭振当量系统，然后进行自由振动与强制振动计算。
In the previous research on torsional. vibration of diesel engine shafting system, an equivalent system must be defined before calculating free vibration and forced vibration.
系统谐响应分析和强迫振动分析结果通过传动系统扭振实验得到了验证。
The harmonic responses and forced vibration are analyzed and the results are verified by the system's torsional vibration testing.
当扭振振幅或扭振应力超过限值时，设计橡胶扭振减振器将振幅衰减到容许范围内，消减曲轴系统的扭转振动。
When the torsional vibration amplitude and stress exceed the limit, the rubber torsional vibration damper should be designed to reduce the amplitude within the permitted range.
由于它的变形、受力和振动均是弯扭耦联的，其力学分析就显得比较复杂。
Because its deformation, stress and vibration of three dimensions are bending-torsional-coupled, the mechanics analysis of this kind of structure is comprehensive.
轴系扭振的模态对数衰减率正比于每个振动周期耗散的能量与峰值应能的比值。
This logarithmic decay ratio of the shaft set is in direct proportion to the ratio of the energy dissipated per cycle to the peak strain energy.
本文采用应变控制和应力控制两种控制方式对饱和砂土进行了大量的振动扭剪试验。
This paper presents the test results of a series of dynamic cyclic torsional shear tests on saturated sands using both stress-controlled and strain-controlled process.
研究了在外载荷作用下锥齿轮传动转子系统纵弯扭耦合振动的不平衡响应。
The unbalanced responses of bevel geared rotor system under external torque in the coupled axial-lateral-torsional directions were studied.
研究了裂纹转子的弯扭耦合振动特性，分析了扭转对弯曲振动的影响。
In this paper we have researched the bending torsional coupling characteristic of cracked rotor, and analysed the influence about torsional vibration to bending vibration.
结果表明，该方法能够准确、有效地估计出振动攻丝扭信号，获得清晰的特征谱线。
Research result showed that the vibration-tapping torque signal could be estimated accurately and validly by this strategy and the clear feature spectrum line was obtained too.
对扭振系统进行了仿真并进行了运行实验，实验表明，电机和泵同轴的两质量系统有利于减少振动和噪声。
The torsion vibration system was simulated and the experiment was carried out. Results showed that the dual mass system of the motor and coaxial pump could help to reduce the noise and vibration.
分析载体线振动和角振动所引起的干扰作用，并对几种扭杆轴不相交的单环和双环调谐陀螺方案给出理论分析和评价。
The disturbing torques associated with the lineal and angular vibration of gyro'sfoundation are derived. It gives also the theoretical analysis and evaluation of somedesigns of single-gimbal or…
为了研究土的剪切波速与其三轴剪切试验力学指标之间的关系，依据扭剪振动原理，开发出一种测试三轴压力室内土样剪切波速的传感器。
Torsion shear wave transducer is a newly developed device to test the shear wave velocity of soil specimen which has not been reported before.
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