采用有限元法研究了动力吸振器减小船体梁结构谐波振动响应的有效性。
The study of the effectiveness of the dynamic vibration absorber in reducing harmonic response of the ship hull girder using the finite element method is presented.
复杂振动中频率最低的成分(基频或一次谐波)。
The component having the lowest frequency in a complex vibration (fundamental frequency or first harmonic).
用有限元法对摊铺机振动梁进行了固有特性和谐波响应分析。
The intrinsic characteristics and harmonic responses of vibrating beam of paver are analyzed using FEA.
针对旋转机械非平稳信号的特点,提出采用谐波小波滤波对现场采集的振动信号进行故障诊断的新方法。
A new method of fault diagnosis of in-situ sampled vibration signals is introduced for the non-stationery signals of rotating machines by using the harmonic wavelet filtering.
针对现有电力系统非整数次谐波分析法的不足,提出了一种改进的希尔伯特振动分解(HVD)方法。
An improved Hilbert vibration decomposition (HVD) method was introduced to the non-integer harmonic analysis in electrical power system.
谐波误差产生的主要原因是系统相对振动、几何布局失稳、随机干扰和机床进给能力不足。
The main cause to create harmonic error are the relative vibration in system, in stability of geometry configuration, random disturbance and in sufficient feeding ability of the machine tool.
应用增量谐波平衡法(IHB法)研究轴向运动薄板横向非线性振动特性及其稳定性。
The laterally nonlinear vibration of axially moving plates was analyzed by the incremental harmonic balance (IHB) method.
对噪音问题,要知道旋转机械,无论怎样很好的平衡,仍然会由于谐波共振振动如果数字的叶片是一个偶数。
On the topic of noise, be aware that rotating machinery, no matter how well balanced, will still vibrate due to harmonic resonances if the number of vanes is an even number.
本文研究了用与受迫力谐波共振的周期摄动抑制含二次非线性项受迫振动系统中的混沌。
In this paper, suppression of chaos in a forced vibration system with a square term by resonant periodic perturbations is studied.
本文分别采用多元L-P法和增量谐波平衡法(IHB法)研究轴向运动梁的横向非线性振动。
The multiple dimension Lindstedt-Poincaré method and IHB method are used to study the nonlinear vibration of axially moving beams.
针对使用中出现的发热、振动、干扰与谐波等问题提出处理意见。
Aimed at producing heat, vibration, disturbance and harmonic wave, the handling opinions are pointed.
考察了亚谐响应幅值系数对阻尼的敏感性及亚谐振动谐波成分的渐近稳态性。
The asymptotical stability of the subharmonic resonances and the sensitivity of the amplitude responses to the variation of damping coefficient were examined.
随机脉宽调制技术可以使逆变器输出电压的谐波成分均匀地分布在一个较宽的频率范围内,达到抑制噪声和机械振动的目的。
Random pulse width modulation technique can be used to distribute voltage harmonics over a wide frequency range and to realize the reduction of acoustic noise and vibration.
研究由桥面振动引起的斜拉索参数共振和亚谐波共振问题。
The parametric and subharmonic resonances of stay cables excited by the vibration of deck are investigated.
本文采用改进的L -P法研究梁的强非线性振动,分析了超谐波共振和次谐波共振两种情况。
The modified Lindstedt-Poincaé method(MLP) is used t analyze strongly nonlinear vibration of beams. Attention is focused on the superhamonic and subharmonic resonances.
建立了振动压路机跳帧的动力学模型,研究了跳振时振动压路机的非线性动力学特性,选取次谐波共振为跳振的主要特征。
The dynamical model of jump vibration is built, the nonlinear dynamical characteristic of jump vibration is studied and find the sub-harmonics vibration is main characteristic.
研究速度变化的轴向运动粘弹性梁在亚谐波共振及组合共振范围内的参数振动。
Parametric vibration of an axially moving, elastic, tensioned beam with pulsating speed was investigated in the vicinity of subharmonic and combination resonance.
以开关电源驱动的超声电机为了避免激发出电机的非工作模态振动,需要串联电感滤除高次谐波。
To avoid the vibration under non-working modes, inductors should be connected in series to the USM, which is driven by switched-supply power.
由于震源的机械装置和振动装置的非线性振动以及振板与大地的耦合等问题,在震源向地下输入能量的同时,也产生了谐波畸变。
Harmonic distortion arises from the nonlinear vibrations of mechanical device of seismic source and the coupling between the vibrator and the ground.
试验结果表明,本文提出的方法能正确地分析出表面波纹度的激振特性以及引起轴承振动的主要波纹度谐波分量。
The vibration signal is modeled and analyzed by using the technique of time series analysis, and the main factors of the surface waviness which cause the ball bearing vibration are…
该装置不但可以对振动、噪声进行监测,还可以根据实际需要对电压、电流、功率、谐波等进行监测。
Not only can this device monitor vibration and noise, but also can monitor voltage, current, power and harmonics according to actual needs.
在每一个谐波进行振动处理直至谐振频率稳定并转入另一个谐波进行振动处理。
The vibratory treatment is done at each harmonic wave until the resonance frequency is stable and then turned to the next.
在每一个谐波进行振动处理直至谐振频率稳定并转入另一个谐波进行振动处理。
The vibratory treatment is done at each harmonic wave until the resonance frequency is stable and then turned to the next.
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