振动型

By applying the difference arithmetic to solve the differential vibration model of the single-degree-of-freedom,the acceleration responses of the vibrated bevel wheel was calculated.The bevel wheel contact fault was simulated by taking it as the impulsion loading in local point.By using techniques of wavelet de-noising and demodulated resonance,gear contact character information was picked up successfully.

从齿轮的单自由度振动模型出发，运用差分算法对模型进行求解，得到斜齿轮的振动加速度响应，将齿面接触型故障等效为在局部点突加一个冲击载荷，对齿轮齿面接触型故障进行了仿真，利用小波降噪和共振解调技术分别对仿真的染噪振动加速度信号进行处理，成功地提取了轮齿接触故障的信息。

It comes form vibration signal that obtained by monitoring in two mutual vertical direction on one cross section of the axletree or axes neck.

它可以通过振动位移和激振力的相位的变化来判断转子的临界转速；当挠性转子由不平衡力引起振动时，在不同的转速下有不同的振型，根据不同的振型对转子进行有针对性的平衡；另外根据检测到的轴心轨迹图形状，可以分析出造成振动的具体原因，根据不同的原因进行防振和减振。

Some sufficient criteria were obtained for oscillation of all solutions of such systems under first boundary value conditions by employing Gauss＇ divergence theorem, the integral inequalities and some results of the functional differential equations.

研究一类具非线性扩散系数的中立型双曲泛函偏微分方程组的振动性，利用Gauss散度定理、积分不等式和泛函微分方程的某些结果，获得了该类方程组在第一类边值条件下所有解振动的若干充分判据，结论充分表明振动是由时滞量引起的，同时也揭示该类方程组与普通双曲型偏微分方程组质的差异。

A laser holograph interference method for research on vibration test of first class compressor s disk is used.

采用激光全息干涉法对某型发动机一级压气机盘进行振动试验研究，在0-15 000 Hz频率范围内获得了7个振动模态的静频及振型，并根据试验结果研究该轮盘的行波振动，分析轮盘的共振特性及临界转速。

The last part is concerned with the nonoscillatory problems of odd-dimentional systems of linear retarded functional differential equa-tions.

第四章研究了一类奇数维分布型线性泛函微分系统的非振动性。同时也给出了相应的中立型分布型线性泛函微分系统的非振动性。

According to thermoelastic deflection of the V-shaped titled beam, the forth-factorially partial differentiation equation is used to describe the dynamic performance. Then the natural frequency and the mode of the actuator are obtained through analyzing of free vibration modal.

根据硅微致动器V型斜梁热弹性应力变形，推导出弯曲振动的四阶偏微分方程，通过其自由振动模态分析，得到了斜梁弯曲振动的各阶固有频率和振型。

The distribution of gear's contact stress, root stress, and contact engagement line in the engagement situation of gear pairs, were obtained on the base of explicit integration method. 3. Adopting the method of system matrix, the torsional vibration differential equation of general shafting was gained. The simple harmonic forms of excitation torque under the normal combustion or piston flameout of in-line engine and v-type engine were analysed. The decoupled algorithm of free vibration and forced vibration and the solution to the vibration damper's energy of resistance and the off-resonance calculation were studied. The sensitivity formulations of the natural frequency and vibration mode to physical parameters of system were derived by solving the eigenvalue problem. These sensitivity formulations provided the theoretical base for the dynamic modification of structure.

运用系统矩阵法建立了轴系的扭振微分方程，并对直列和V型发动机在正常发火和气缸熄火工况下的激振力矩进行了详细的简谐分析；基于精确方法推导了自由振动和强迫振动的解耦算法，给出了能量法计算中的减振器阻尼功求解和非共振计算方法；并研究了曲轴系扭振非线性分析中的变惯量问题，得到了单缸转动惯量的精确求解公式以及变惯量和固有频率的关系式；最后，从特征方程和振型正交性出发，推导了固有频率和振型对轴系转动惯量和刚度等物理参数的灵敏度，为扭振系统的结构动力学修改提供了理论基础。

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主要销售产品有： 200A-3 榨油机、 202 型、 24 型、 240 型、 204 型预榨机、 1.5m×5--3.0m×5 蒸炒锅、各种型号三辊、对辊液压压胚机、膨化机，烘干机、振动硫化床干燥机、板框式毛油过滤机、叶片滤油机，冬化过滤机，离心机、脱臭锅、脱色锅、精炼罐、脱皂机、比配混合机、加热罐、脱水机、 28-36 剥壳机、圆筛、振动筛、平面筛、破碎机、去石机、蒸脱机、减速机、列管冷凝器、板式冷凝器、板式换热器、螺旋板换热器、各种刮板，绞龙、提升机、 15-300 吨浸出设备， 20-100 吨色拉油设备， 1 吨-20 吨蒸汽锅炉， 10 万大卡-200 万大卡导热油炉。

Company-efficient products ZSJG heavy shaker; SDY-round, and so thick shaker; ZK-linear shaker; coal preparation; automatic feeding belt conveyor; road blocks, Lu Yanshi, hollow brick block making machine; Taiwan Vehicles; cold-formed; pile-drivers, tankers and other products.

公司主导产品有ZSJG高效重型振动筛；SDY型等厚圆振动筛；ZK型直线振动筛；选煤机；自动给料带式输送机；路面砖、路沿石、空心砖砌块成型机；台车；冷弯机；打桩机、罐车等系列产品。

In the case that the oscillation factor isn't sign reversal and neutral factor is p, by discussing the sign of the neutral term's first derivative and using Holder inequality the oscillation conditions of the all solutions of this kind of equation are studied, three sufficient theories that all solutions of the equation oscillate are obtained.

在振动因子q保号、中立型因子p的情况下，通过对中立型项一阶导数符号的讨论，根据Holder不等式，研究了该类方程的解振动的条件，得到了所研究方程所有解振动的三个充分性定理，所得结论是对该类问题已有结论的进一步完善和推广。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。