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- The air mass between the top and bottom plates can also oscillate at the strings' natural frequencies. 面板与背板之间的空气也可以在琴弦的自然频率下共振。
- The differential quadrature method(DQM)is extended to solve the natural frequencies of pipe. 采用微分求积法求解输流管道的固有频率。
- Objective To increase the natural frequencies of hypergravitation training facility. 目的提高超重训练设备整机固有频率。
- A scheme is proposed to derive natural frequencies and modal functions of a beam under the given boundary conditions and moving axially at a constant speed. 提出在给定边界条件下确定一匀速运动梁固有频率和模态函数的方法。
- By finite element analysis of circular conical shell, the natural frequencies and vibra-tional modes of Yongle Bell have been calculated. 本文通过旋转壳体的有限元方法,计算了永乐大钟的主要固有频率和振型。
- In this paper,the natural frequencies and modes of box water body researched by using three-dimensional finite element method. 本文运用三维有限元方法离散水体，研究了箱形术体的自振频率及动水压力振型。
- We calculated the natural frequencies and mode of vibration for a five stepped Si-beam of Si-piezoresistive accelerometer. 我们用该方法计算了硅压阻式加速度传感器五阶梯硅梁固频和振型。
- Method The natural frequencies of the hypergravitation training facility were modified by using sensitivity analysis method. 方法采用灵敏度分析法对超重训练设备的固有频率进行修改设计。
- The properties of natural frequencies of flexible parallel robots were investigated to indicate the elas to-dynamic charac teristic. 摘要为了描述柔性并联机器人的弹性动力学性能，分析了机器人振动频率的特征。
- It is important to study the natural frequencies of the BLDCM stator for reducing the noise of the BLDCM and optimizing control strategy. 方波无刷直流电机(BLDCM)定子固有频率的研究对降低电机的噪声和优化控制策略具有重要意义。
- Fi-nally,a practical engineering example for the design is shown,which pointsout that the six natural frequencies placed in a narrower f... 最后给出隔振设计的实例,指出六个固有频率分布在一个狭小的频带范围内是整个隔振设计成功的保证。
- The natural frequencies, modal shapes and modal damping ratios of the typical structural system are got by dynamic behaviour measurement. 通过实测试点工程结构的动力反应，获得结构的自振频率、振型和阻尼比等模态参数。
- The differential quadrature method was employed to analyze the natural frequencies and critical speed of the plate under in-plane loading. 分析轴向运动速度、板材料刚度及长宽比对板横向振动固有频率及临界速度的影响。
- Experiment shows that the natural frequencies got from theoretical formulae are good approximations compared the values measured. 根据该理论,可计算得到轧机容易激发的固有频率。
- It is found that the effects of prestress force on the lower natural frequencies and the dynamic displacement response of the beam are large. 研究表明预应力对梁的低阶频率和位移响应的影响较大。
- Besides, the authors find that fluid compressibility has little impact on the natural frequencies of structures in shallow water. 而流体的可压缩性对于浅水域结构固有频率影响不大。
- It is the natural frequency of emission of the hydrogen atoms in space . 这是空间氢原子“释放”的自然频率。
- The natural frequencies were compared with the dominant frequencies extracted from the test squeal vibration with the reciprocating sliding system. 将得到的系统振动频率与系统的试验噪声的频率进行比较,发现它们的一些结果有很好的一致性。
- A new method named interval analysis method, Which solves the natural frequencies of composite laminate with uncertain parameters, was presented. 摘要提出了求解具有不确定参数的复合材料板的振动固有频率区间分析法。
- By further simplification,the unified expression of natural frequencies for FGM parallelogrammic plates with various boundary conditions wa... 在简化情况下,给出了各种边界条件平行四边形功能梯度板各阶固有频率解的统一表达式。
