基于随机振动的离散分析理论，推导出白噪声激励下结构动力响应的递推公式。
Based on discrete random vibration theory, recurrence formulas are developed to calculate the dynamic response of structures under white noise excitations.
设计主要有两个部分的内容：液压轴向柱塞泵的噪声分析和结构的改进。
The content of paper includes two parts: the noise analysis of hydraulic axial piston pump and improved design of structure.
通过对混频器噪声机理的分析，在原有的结构上增加了电流注入模块。
A double-balanced Gilbert structure with current injection is used according to the analysis of mixer noise and gain.
本文从声学振动理论出发，分析并导出了结构的振动与表面辐射噪声的关系。
In this paper, the relationship between the structure vibration and the surface noise radiation is analyzed and deduced from the acoustic and vibrational theory.
本文介绍一种新型径向柱塞泵的结构，分析其低噪声、低泄漏的结构原因。
This article deals with the Structure of a new dimensional pump and analyses Structural cause of its low-noise and little-leakage.
基于能量流理论提出了识别结构噪声源的分析方法。
An analysis method is proposed to identify structure borne sound source based on vibrational energy flow theory.
因此，在船舶设计阶段就进行船舶结构的振动噪声分析是非常有意义的。
Therefore, it is very significant to analyze noise and vibration problem of ship structures in the ship design stage.
论述了理论分析，给出了具有目前国际同类产品先进水平的低噪声液压元件和系统的结构原理与主要的技术指标。
The construction Principle and the main specifications of the low noise fluid Power transmision and conrtol systems and components with the existing standards in the world are gave.
通过理论推导和样本分析，研究了舰船噪声调制谱谐波族特征蕴含的结构特性和应用于识别的相关问题。
By theoretical derivation and sample analysis, the structure law of ship radiated-noise demodulation -spectrum harmonic clan feature and correlative questions are investigated.
应用有限元方法对液压锥阀流场进行数值预报，分析其能量损失，噪声和流场结构的关系，并在此基础上对流道结构进行优化设计。
After calculating the flow field of the pyramidal, the relationship between energy loss, noise and the structure of the valve has been analyzed; the flow channel has been optimized.
在不同的锯切工艺参数和锯片结构下，测量了噪声值、噪声功率、噪声电压、振动功率和振动幅值，并对其进行频谱分析。
Noise value, noise power, noise voltage, vibration power and amplitude vibration were measured under different cutting parameters of technology and frequency spectrum analysis was also made.
该文利用小波包变换的时频局部分析能力，研究了非高斯分布平稳随机噪声的统计特性，揭示了非高斯噪声信号的信号结构。
By exploiting wavelet packet transform to analyze signals both in time and frequency space, this paper researches the statistic property of non-Gaussian stationary noise and its signal structure.
针对这些现象，从谱、相干结构、时间序列本身的概率分布和标量差的概率分布，分析了高频噪声的影响。
So the influence of high-frequency noise is analyzed by the analysis of power spectra, coherent structure, probability distribution of time series and differences of them.
并分析结构模态对辐射噪声的贡献量。
Contribution of structural modes to the radiation noise is analyzed.
讨论了机电一体化装置抗干扰的重要性，分析了噪声来源，并探讨了一种机电一体化装置抗干扰的结构。
The paper discusses the importance of anti - interference in mechatronics device, analyzes the sources of noise jamming and makes further approach to a antijamming structure for mechatronics device.
本文中，我们将对该结构低噪声放大器进行具体的分析。
In this paper, we present a detailed analysis of the LNA Architecture.
通过对文献中报道的环形腔结构光纤激光器输出的分析，指出了其存在的问题，并提出了减小其输出背景噪声的改进方案。
By analyzing the output spectra of former configurations, a problem was indicated, and an improved loop structure to eliminate the background noise was proposed.
分析了铁路客车噪声控制中阻尼材料的选择原则和选用阻尼材料的特点，阐述了车体阻尼处理结构的方案设计，并进行了现车试验及其结果分析。
The scheme design of damping treatment structures for the body of railway passenger cars is expounded, then the experiment on cars in use and the analysis of the experimental results are performed.
本文介绍一种新型高速低噪声双弹性支承纺纱锭子的结构要点，分析了该锭子实现高速低噪声的原理。
The main structure of high speed low noise double elasticity bearing spindle is introduced in this paper, and analysis the principle of high speed and low noise of the spindle too.
针对抗性消声器中扩张结构和尾管引起的射流噪声问题，建立了低马赫数射流噪声有限元分析模型。
Aimed at the jet noise which is induced by the expand structure and tail tube in the resistant muffler, a finite element model at low Mach number was developed.
针对DVD母盘系统对激光的特殊要求，分析了低噪声激光输出的实现原理，设计了合理的激光结构和精确的温度控制系统，以保障低噪声高稳定的蓝色激光输出。
The principle to obtain low noise laser output is analyzed and a new laser structure and a precise temperature controller are designed to meet the requirement of DVD mastering system.
使用ANSYS有限元软件建立带有推进轴系的潜艇尾部结构模型，用直接边界元方法进行潜艇尾部结构水下辐射噪声特性分析。
The finite element model of underwater structure with shafting is built by ANSYS. The characteristics of structural acoustic radiation are investigated by the direct boundary element method.
声振分析能从根本上弄清结构产生噪声的根源，从而有针对性地对噪声进行控制。
Sound and vibration analysis can fully identify the source of noise, thus controlling the noise accordingly.
本文也对CMOS低噪声放大器进行了分析，将传统共源共栅结构看作二级放大器级联形式，并由此引入级间匹配网络。
In this paper, the traditional cascode structure of CMOS LNA is considered as a two-stage amplifier and inter-stage matching network is introduced accordingly.
结合“声学互易性原理”及车内噪声有限元分析，提出一种车内结构声源辨识的方法。
Combining with the reciprocity principle of acoustic system and the interior noise finite element analysis, an approach fo;
理论分析和试验表明：树结构混合滤波器具有抑制图像噪声能力强，保持图像几何结构信息，算法结构化，易于计算机软件、硬件实现的特点。
The theoretical analysis and experiment show that this filter has good performance in noise removing and geometric information remaining. With its good module. it can be easily realized on computer.
针对制动器噪声分析研究所提出的对子结构修改以抑制噪声发生的目标，探讨了优化设计的修改方法。
Aiming at the target of substructure modification for reducing brake squeal, the modification method in optimal design is investigated.
本文首先介绍了直接数字频率合成技术的原理和结构，并分析了其噪声来源和抑制方法。
Firstly, this paper introduced the principle and structure of direct digital frequency synthesis and analyzed the source and suppression methods of frequency noise.
为了满足壳体零件低振动、低噪声的要求，就必须对壳体零件进行动态特性分析和结构动态设计。
In order to satisfy low level in vibration and noise of shield part, the analysis of dynamic performance and structure design should be utilized.
为了满足壳体零件低振动、低噪声的要求，就必须对壳体零件进行动态特性分析和结构动态设计。
In order to satisfy low level in vibration and noise of shield part, the analysis of dynamic performance and structure design should be utilized.
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