Abstract
The follow-up hydraulic muffler can make the natural frequency of the muffler equal to systematic pulsation frequency in time by changing the section area of the quality chamber so as to achieve the best attenuation effect. In this paper, a spring-damp regulator is installed on the basis of the hydraulic muffler, and the static and dynamic characteristics of the follow-up hydraulic muffler are analyzed by measuring the rotational speed of the pump with the sensor. The results show that the hydraulic muffler based on the spring-damp regulator can effectively attenuate the pulsation.
Highlights
In the system using fluid transfer power, the output of the power source is constant
The hydraulic muffler is a kind of muffler which is designed according to the working principle of air muffler and the physical characteristics of working medium of hydraulic system.It is used to attenuate and absorb hydraulic pulsation, so it is called hydraulic attenuator or hydraulic filter.Mufflers are mainly divided into two categories: resistive muffler and resistance muffler.Resistive hydraulic attenuator is seldom used in hydraulic system because of its complex structure, large pressure loss and short service life.resistance hydraulic muffler is widely used because of its simple structure, small pressure loss and long service life
The hydraulic muffler is a structural parameter element,which mainly consist of quality chamber and volume chamber,it is mainly designed for a specific frequency attenuation.If the vibration frequency of the system deviates from a specific frequency, the attenuation effect of the hydraulic muffler will be greatly reduced.the design of follow-up hydraulic muffler has become a new research direction
Summary
In the system using fluid transfer power, the output of the power source is constant. There are flow pulsation and pressure pulsation in the hydraulic pipeline and the existence of pulsation produces noise, which directly affects the efficiency and service life of the system. How to reduce the flow pulsation becomes an important issue. The hydraulic muffler is a kind of muffler which is designed according to the working principle of air muffler and the physical characteristics of working medium of hydraulic system.It is used to attenuate and absorb hydraulic pulsation, so it is called hydraulic attenuator or hydraulic filter.Mufflers are mainly divided into two categories: resistive muffler and resistance muffler.Resistive hydraulic attenuator is seldom used in hydraulic system because of its complex structure, large pressure loss and short service life.resistance hydraulic muffler is widely used because of its simple structure, small pressure loss and long service life. The hydraulic muffler is a structural parameter element,which mainly consist of quality chamber and volume chamber, ,it is mainly designed for a specific frequency attenuation.If the vibration frequency of the system deviates from a specific frequency, the attenuation effect of the hydraulic muffler will be greatly reduced.the design of follow-up hydraulic muffler has become a new research direction
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