Display graph for representing association relationship between inherent performances of silencer

Abstract

The invention relates to a display graph for representing the association relationship between the inherent performances of a silencer. The display graph can enable technicians in the field to quicklyknow the association relationship between the inherent performances of the silencer and is convenient for quickly and accurately selecting an adaptive silencer according to application requirements.An X axis represents a total pressure loss coefficient, and a Y axis represents sound transmission loss and an airflow regeneration noise sound power level; detecting the inherent sound transmission loss, the total pressure loss coefficient and the airflow regeneration noise sound power level of a series of finished silencers by adopting detection equipment, and obtaining a corresponding data series; in combination with a data series, physical quantities influencing the intrinsic performance parameter values are drawn in an X-axis coordinate graph and a Y-axis coordinate graph through curves of different lines. According to the ventilation silencer, the incidence relation of the performance of the silencer is expressed in a curve mode, the curve graph of one part of paper can exceed the data table information amount of dozens of parts of paper, and when a user selects the ventilation silencer, selection, rejection and optimization can be conveniently conducted according to the specificsituation of the user.

Description

technical field [0001] The invention relates to the field of muffler applications, in particular to a graph showing the relationship between the inherent performance of the muffler and the physical quantities that affect these performances in the form of a graph. Background technique [0002] Ventilation mufflers, the expression of unified standards at home and abroad, mainly include the following three parameters: [0003] 1) Sound transmission loss (or insertion loss), commonly known as "noise reduction", is used to characterize the noise reduction performance of the ventilation muffler; the application of the muffler is to eliminate noise, and the sound transmission loss is the most basic and main performance parameter of the ventilation muffler; The larger the parameter, the better the performance; it belongs to "favorable performance". [0004] 2) Total pressure loss coefficient (or abbreviation: resistance coefficient), which is used to characterize the ventilation re...

AI Technical Summary

Problems solved by technology

Even so, the above table can only express the performance of a limited number of mufflers. If more muffler options need to be added, it generally requires dozens of pages of data table sets

On the other hand, the relationship between the "favorable performance" and "disadvantage cost" of the muffler is not clear, which is very inconvenient for those skilled in the art to optimize and select the appropriate muffler application

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