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一、前言通常研究混凝土振动器的振实效果,都用其作用半径或在混凝土内埋设加速计的方法。前者的缺点,因作用半径与振实效果之间尚无确定的关系,靠目力来判断作用半径,误差较大;后者的缺点,加速度计的埋入会改变混凝土的运动特性而且加速计的方向不好控制,还会带来加速度计的防护问题。对这种非均匀、非线性、触变性并与时间有关的物体的振
I. INTRODUCTION Generally, the vibratory effect of a concrete vibrator has been studied. Both of them use their radius of action or a method of embedding an accelerometer in concrete. The disadvantage of the former is that there is no definite relationship between the effect radius and the tapping effect, and the error is determined by the eyesight to judge the action radius; the disadvantage of the latter is that the embedding of the accelerometer will change the movement characteristics of the concrete and the direction of the accelerometer. Bad control can also bring about the protection of accelerometers. The vibration of such non-uniform, non-linear, thixotropic and time-dependent objects