In this paper, the contribution of high order mode shape to the frequency response function of disproportional damping structure is expressed by using low order mode shape and system matrix.
本文用低阶模态和系统矩阵表达高阶模态对非比例阻尼结构频响函数的贡献。
UWB communication not only requires antennas be of good property in the domain of frequency and time, but also requires small size, simple structure, light weight and low cost antennas.
UWB通信不仅要求天线具有良好的时域与频域特性而且要求天线尺寸小、结构简单、重量轻、成本低等。
This structure can form a wave-guide in photon crystals and light can propagate in it with different selected frequency in photonic band gap with low loss.
该结构在光子晶体中构成光波导，能使光子禁带中不同的被选择的缺陷态频率的光子以极低的损耗通过。
With coaxial structure, it has no low-cut frequency. Therefore it might be one of the middle bandwidth slow-wave structure with high-power capacity.
由于其采用同轴结构，不具有低截止频率，因此可能是一种能够同时满足高功率容量和较宽带宽要求的慢波结构。
The circuit has wide frequency bandwidth, high voltage and current transfer accuracy, simple structure. For this reason, it is easy to be realized with low cost for universal applications.
该电路具有频带宽、电压传输和电流传输精度高、结构简单、易于实现及成本低廉且实用性好的特点。
The results show that with low loading level the metal coated CFF provides excellent EMS property in a wide frequency range due to its cavity structure and metallic coating.
研究表明：利用碳毡的孔洞结构和尺寸，辅之以金属镀层，能在较宽的频率范围内对电磁波有良好的屏蔽效率，且不需要很大的填充量。
Rased on the experimental researches, the characteristic behavior of slab and wall structure with unbounded prestressing in the slab under low frequency cyclic loading have been studied.
通过低周往复水平荷载试验，对无粘结预应力板墙结构的工作特性，以及无粘结预应力筋在水平荷载下的变化规律进行了分析。
This paper introduces the structure and principle of a novel low-frequency electronic pulse therapeutic apparatus.
介绍了一种新型低频脉冲治疗仪的基本结构、工作原理。
It is easy to be integrated because of the simple structure and it owns excellent frequency response, low power dissipation.
该电路结构简单，易于集成，具有功耗低、频率特性好、响应速度快、不降低电源系统的工作效率等优点。
The results show that: CSP are flexible structure system which have low natural frequency, and are sensitive to wind load;
研究表明：悬索式跨越管道是一种低固有频率的柔性结构体系，对风载荷作用非常敏感；
The result show that this system have the advantage of simple structure, high control precision and low cost, which is suit for the home DC inverted frequency air-conditioner application.
试验结果表明，该系统具有结构简单可靠、控制精度高、成本低廉的优点，适于家用直流变频空调的应用。
In the paper aiming at the problem of low frequency noise transmission through double panel structure, feedback active noise control technique is adopted to control noise transmission.
本文对于低频噪声在双层板结构中传播的问题，探讨采用反馈的主动噪声控制技术以达到控制噪声传播的目的。
A frequency selective surface (FSS) is a metallic periodic structure with frequency selective properties. Depending upon design, it may be low-pass, high-pass, band-pass, band-stop filter.
频率选择表面（FSS）是具有选择频率功能的一块金属周期结构，它可以被设计成低通、高通、带通、带阻滤波器。
A silicon micro cantilever structure with piezoeLectric thick film was designed for low frequency operations.
设计了一种硅微悬臂梁结构，在低频环境中以压电厚膜进行信号转换、谐振。
Based on the sound absorption mechanism of Helmholtz Resonator, the advantage of soft tube length is fully used in the new structure, and thus the low-frequency noise can be controled easily.
提出了一种新型的宽频带共振吸声结构，该结构基于赫姆霍兹共振吸声机理，并充分利用了软管在长度上的优势，易于实现对低频噪声的控制。
But for high frequency problem and complex structure, too dense grid of object will lead to dense impedance matrix and many unknown variables, so the computational efficiency will be very low.
但是在处理高频问题和具有精密结构的缝隙时，对目标剖分过密会导致稠密的阻抗矩阵，未知量增加，影响计算的效率。
The utility model relates to a low-frequency sending coil consisting of a plastic noumenon with slab structure and a conducting material wound around the plastic noumenon.
本实用新型涉及一种低频发送线圈，包括塑料本体和缠绕塑料本体的导电材料，所述塑料本体为平板结构。
This paper presents the way of the structure and analogy circuitry of a sound box working in inverse-phase type and the usages of the assistant soft for sound box in low frequency design.
介绍了倒相式音箱类比成集中参数等效电路的方法和音箱低频特性计算机辅助设计软件及其使用方法。
IGCT with current, high voltage, high switching frequency, high reliability and compact structure, and low loss characteristics, but have led to the low yield, a good prospect.
IGCT具有电流大、电压高、开关频率高、可靠性高、结构紧凑、损耗低等特点，而且造成本低，成品率高，有很好的应用前景。
This Unit has large load, low stroke frequency, long stroke, high efficiency environmental protection, compact structure, safety, good movement performance.
该机具有大载荷、低冲次、长冲程、高效节能环保和结构紧凑、可靠性高、运动性优的特点。
The utility model discloses a frequency converter special used controller which is simple in line, compact in structure, low in cost and high in reliability.
本实用新型公开了一种线路简单、结构紧凑、成本低廉而且可靠性高的变频器专用控制器。
The plan is made up of 83c251sb one-chip computer and SA4828 integration-chip of SPWM wave signal, which is a simple-structure, low-costing and well-functioned variable frequency controller.
本设计方案采用83c 251sb型号单片机和SPWM波信号发生器s A 4828组成一种结构简单、成本低、功能较好的变频控制器。
The plan is made up of 83c251sb one-chip computer and SA4828 integration-chip of SPWM wave signal, which is a simple-structure, low-costing and well-functioned variable frequency controller.
本设计方案采用83c 251sb型号单片机和SPWM波信号发生器s A 4828组成一种结构简单、成本低、功能较好的变频控制器。
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