• The invalidation form of rolling bearing has been analysed in this text, and the pulsation frequency which is caused of rolling bearing malfunction also has been estimated.

    滚动轴承失效形式作了分析对滚动轴承故障引起轴承的脉动频率估算

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  • The simulating result shows that there is little difference in the flow coefficient between the adjacent odd and even piston pumps, and the flow pulsation frequency is independent...

    仿真结果表明相邻值偶数流量脉动系数相差无几,流量脉动频率柱塞数的奇偶无关。

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  • The air temperature is the most important parameter in the relationship of current humidity vs drying time. Static bed height as well as pulsation frequency has some influence on the drying process.

    气流温度影响干燥过程降水幅度重要参数床层静止高度脉动频率干燥过程的影响很小。

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  • The model was subjected to pulsation, vibration, free vibration and hammering tests in order to investigate its flexibility, frequency and damping characteristics.

    为了获得模型特性频率阻尼等进行了脉动试验自由振动锤击试验等。

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  • If the frequency of oil-pressure pulsation is near to power system natural oscillations frequency, power system low frequency oscillations of resonance mechanism can be induced.

    全液压调速系统油压容易产生脉动如果油压脉动的频率电力系统固有频率接近时也可能引发电力系统共振机理低频振荡

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  • This paper simulates and analyses the torque pulsation because of the modulation frequency and speed variation under ambipolar pulse width modulation, at the same time the results are given.

    本文对双极性调制无刷直流电动机仿真分析转速调制频率对转矩影响同时给出仿真结果。

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  • The FEM equation of acoustic wave is used to calculate the air-current natural frequency and pressure pulsation in the pipeline.

    利用有限元法求解声学波动方程,建立了管内气流的有限元运动方程,计算出管内气柱的固有频率气流压力脉动。

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  • In practice, choosing the static height of the bed layer and the frequency of the gas pulsation properly can increase the heat transfer coefficient.

    实际操作过程中选择合理静止高度气流脉动频率提高传热系数有利。

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  • The hysteresis wide is widened for decreasing switching frequency and energy losses, which causes the pulsation of instantaneous active power and direct current voltage.

    降低开关频率减少开关损失,需增加功率环比较器环,否则引起瞬时有功功率直流电压波动,影响系统性能;

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  • Frequency of torque signal is consistent with that of force vibration. Amplitudes of radial pulsation signal increases as tapping continues.

    扭矩信号频率外加振动频率相一致径向跳动信号攻丝过程的持续进行逐渐变大。

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  • Frequency of torque signal is consistent with that of force vibration. Amplitudes of radial pulsation signal increases as tapping continues.

    扭矩信号频率外加振动频率相一致径向跳动信号攻丝过程的持续进行逐渐变大。

    youdao

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