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What is the muffler principle of the muffler?

What is the muffler principle of the muffler?

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  • Time of issue:2019-12-08 18:28
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(Summary description)The muffler's muffler principle is to use porous sound-absorbing materials to reduce noise, which is the principle of a resistive muffler. The sound-absorbing material is fixed on the inner wall of the airflow channel or arranged in a pipe in a certain manner to form a resistive muffler. When the sound wave enters the resistive muffler, a part of the sound energy rubs in the pores of the porous material and is converted into thermal energy to be dissipated, which weakens the sound wave passing through the muffler. A resistive muffler is like a purely resistive electrical circuit, and sound-absorbing materials are similar to resistors.

What is the muffler principle of the muffler?

(Summary description)The muffler's muffler principle is to use porous sound-absorbing materials to reduce noise, which is the principle of a resistive muffler. The sound-absorbing material is fixed on the inner wall of the airflow channel or arranged in a pipe in a certain manner to form a resistive muffler. When the sound wave enters the resistive muffler, a part of the sound energy rubs in the pores of the porous material and is converted into thermal energy to be dissipated, which weakens the sound wave passing through the muffler. A resistive muffler is like a purely resistive electrical circuit, and sound-absorbing materials are similar to resistors.

  • Categories:Company news
  • Author:
  • Origin:
  • Time of issue:2019-12-08 18:28
  • Views:
Information
The muffler's muffler principle is to use porous sound-absorbing materials to reduce noise, which is the principle of a resistive muffler.The sound-absorbing material is fixed on the inner wall of the airflow channel or arranged in a pipe in a certain manner to form a resistive muffler. When the sound wave enters the resistive muffler, a part of the sound energy rubs in the pores of the porous material and is converted into thermal energy to be dissipated, which weakens the sound wave passing through the muffler. A resistive muffler is like a purely resistive electrical circuit, and sound-absorbing materials are similar to resistors.
The muffler principle of the resistant muffler is that each cell with a tube is a mesh of a filter. The air quality in the tube is equivalent to the electrical inductance and resistance, which is called sound quality and sound resistance. The volume of air in the cell is equivalent to the electrical capacitance and is called sound compliance. Similar to electrical filters, each cell with a tube has its own natural frequency. When sound waves containing various frequency components enter the first short tube, only certain frequency sound waves near the natural frequency of the first mesh can pass through the mesh to reach the second short tube mouth, while other frequencies Sound waves cannot pass through the mesh. Can only be reflected back and forth in the cell .
的 The sound damping principle of the composite impedance muffler is to select different perforation rates and different cavity depths of the plate thickness to control the frequency spectrum performance of the muffler, so that it can obtain a good sound attenuation effect in the required frequency range.

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