的UV - 16是一种2通道电荷放大器，它是与压电加速度计和内置前置放大器加速度输入兼容。
The UV-16 is a 2-channel charge amplifier that is compatible with the input of piezoelectric accelerometers and accelerometers with built-in preamplifier.
分析发现，加速度输入模型和位移输入模型两种输入方法都可以应用于多点激励分析，但位移输入更方便。
It is found that these two methods both can be used in analysis of multi-support excitation, but the displacement time-history method is much more convenience.
数值计算结果表明，若采用相同的数值积分方法和积分步长，位移输入模型可获得比加速度输入模型更高的计算精度。
It is found that the displacement input model is more accurate than the generally used acceleration input model, given the same direct integration method and time step.
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