Horizontal resonance low frequency vibration exciter

Abstract

A low-frequency vibration exciter for horizontal resonance is composed of an eccentric mass type vibration exciting unit for supplying energy of resonance, a fixed supporting unit for the said exciting unit, and a horizontally transferring elastic unit for regulating resonance frequency by changing different springs.

Description

technical field [0001] The invention relates to a resonance exciter, in particular to a horizontal resonance low-frequency exciter suitable for low-frequency research. Background technique [0002] The modern industrial environment is full of variables that affect product manufacturing, and the influence of vibration factors on industrial product manufacturing has recently been paid more and more attention. Because for the manufacture of precision products, such as the manufacture of semiconductor IC products, the impact of environmental vibration frequency is very important. The impact of low-frequency (frequency less than about 12.5 Hz) vibration on the precision product (such as semiconductor) industry has recently been valued by the precision product (such as semiconductor) manufacturing industry. Because, recently, due to the increase in the density and energy of traffic construction, the manufacturing environment of precision products (such as semiconductors) is very ...

AI Technical Summary

Problems solved by technology

However, for horizontal low-frequency vibrations with a vibration frequency not greater than 12.5Hz, especially low-frequency vibrations between 2Hz and 3.5Hz, the natural background value is quite different from the horizontal vibration amplitude of general traffic construction (such as high-speed railways), so precision products (such as The semiconductor) manufacturing industry urgently needs a convenient and effective horizontal low-frequency exciter as a research test for simulating the low-frequency environment.

[0003] The traditional low-frequency exciter, commonly used electromagnetic exciter, its applicable frequency is mostly used for high-frequency, low-frequency vibration is not feasible and prone to failure

Another kind of centrifugal vibrator used for geological formation research is only suitable for geological vibration simulation of outdoor large-scale civil engineering because of its large volume and time-consuming and laborious assembly. It is not suitable for factory or factory laboratory testing or simulation.

Another electromagnetic inertial vibrator is more suitable for high-frequency excitation. Even if low-frequency vibration can be excited, it is only suitable for small-sized objects to be tested due to insufficient vibration force.

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