• 采用有限元研究动力振器减小船体梁结构谐波振动响应有效性

    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.

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  • 复杂振动频率最低成分(一次谐波)。

    The component having the lowest frequency in a complex vibration (fundamental frequency or first harmonic).

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  • 有限元法摊铺机振动梁进行固有特性谐波响应分析

    The intrinsic characteristics and harmonic responses of vibrating beam of paver are analyzed using FEA.

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  • 针对旋转机械平稳信号特点,提出采用谐波小波滤波现场采集振动信号进行故障诊断方法

    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.

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  • 针对现有电力系统非整数次谐波分析法的不足,提出改进希尔伯特振动分解(HVD)方法

    An improved Hilbert vibration decomposition (HVD) method was introduced to the non-integer harmonic analysis in electrical power system.

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  • 谐波误差产生主要原因系统相对振动几何布局随机干扰机床进给能力不足

    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.

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  • 应用增量谐波平衡(IHB法)研究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.

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  • 噪音问题知道旋转机械无论怎样很好的平衡仍然由于谐波共振振动如果数字叶片一个偶数

    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.

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  • 本文研究了用与受迫力谐波共振周期抑制含二次非线性振动系统中的混沌

    In this paper, suppression of chaos in a forced vibration system with a square term by resonant periodic perturbations is studied.

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  • 本文分别采用多元L-P增量谐波平衡法(IHB法)研究运动横向非线性振动

    The multiple dimension Lindstedt-Poincaré method and IHB method are used to study the nonlinear vibration of axially moving beams.

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  • 针对使用中出现的发热、振动干扰谐波问题提出处理意见

    Aimed at producing heat, vibration, disturbance and harmonic wave, the handling opinions are pointed.

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  • 考察响应值系数对阻尼敏感性亚谐振动谐波成分渐近稳态性。

    The asymptotical stability of the subharmonic resonances and the sensitivity of the amplitude responses to the variation of damping coefficient were examined.

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  • 随机调制技术可以使逆变器输出电压谐波成分均匀分布一个频率范围内达到抑制噪声机械振动的目的。

    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.

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  • 研究桥面振动引起斜拉索参数共振谐波共振问题。

    The parametric and subharmonic resonances of stay cables excited by the vibration of deck are investigated.

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  • 本文采用改进L -P研究非线性振动分析谐波共振谐波共振两种情况。

    The modified Lindstedt-Poincaé method(MLP) is used t analyze strongly nonlinear vibration of beams. Attention is focused on the superhamonic and subharmonic resonances.

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  • 建立振动压路机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谐波共振跳振的主要特征

    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.

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  • 研究速度变化轴向运动弹性谐波共振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.

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  • 以开关电源驱动超声电机为了避免激发出电机的非工作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.

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  • 由于震源机械装置振动装置的非线性振动以及大地耦合等问题,在震源地下输入能量的同时,也产生谐波畸变

    Harmonic distortion arises from the nonlinear vibrations of mechanical device of seismic source and the coupling between the vibrator and the ground.

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  • 试验结果表明,本文提出方法能正确地分析表面波纹特性以及引起轴承振动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…

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  • 装置不但可以振动噪声进行监测可以根据实际需要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.

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  • 每一个谐波进行振动处理直至谐振频率稳定转入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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  • 每一个谐波进行振动处理直至谐振频率稳定转入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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