title: ÐÐ½Ð¾Ð³Ð¾Ð²Ð°ÑÐ¸Ð°Ð½ÑÐ½Ð°Ñ Ð¾Ð¿ÑÐ¸Ð¼Ð¸Ð·Ð°ÑÐ¸Ñ Ð³Ð»ÑÑÐ¸ÑÐµÐ»Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Multivariate optimization of the silencer
Creators: name: ÐÐ¾Ð¸ÑÐµÐµÐ½ÐºÐ¾, ÐÐ½Ð½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð³Ð»ÑÑÐ¸ÑÐµÐ»Ñ
Ð¼ÐµÑÐ¾Ð´ ÐºÐ¾Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð²
Ð¼ÐµÑÐ¾Ð´ Ð³ÑÐ°Ð½Ð¸ÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð²
Ð¿Ð¾ÑÐµÑÑ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸
ÑÑÐ¾Ð²ÐµÐ½Ñ Ð·Ð²ÑÐºÐ¾Ð²Ð¾Ð³Ð¾ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ
silencer
finite element method
boundary element method
transfer loss
sound pressure level

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÑÐ¼Ð° Ð¸ÑÑÐ¾Ð´ÑÑÐµÐ³Ð¾ Ð¾Ñ Ð³Ð»ÑÑÐ¸ÑÐµÐ»Ñ Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»Ñ. ÐÐ²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»Ð¸ Ð½ÐµÑÑÑ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ Ð¾ÑÐ²ÐµÑÑÑÐ²ÐµÐ½Ð½Ð¾ÑÑÑ Ð·Ð° Ð±Ð¾Ð»ÑÑÑÑ ÑÐ°ÑÑÑ ÑÑÐ¼Ð°, ÐºÐ¾ÑÐ¾ÑÑÐ¹ Ð·Ð°Ð³ÑÑÐ·Ð½ÑÐµÑ Ð¾ÐºÑÑÐ¶Ð°ÑÑÑÑ ÑÑÐµÐ´Ñ. Ð¨ÑÐ¼ Ð² ÑÐ°ÐºÐ¸Ñ ÑÐ»ÑÑÐ°ÑÑ Ð¾Ð±ÑÑÐ»Ð¾Ð²Ð»ÐµÐ½ Ð±Ð¾Ð»ÑÑÐ¾Ð¹ ÑÐ°Ð·Ð½Ð¸ÑÐµÐ¹ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¼ÐµÐ¶Ð´Ñ ÑÐ°ÑÑÐ¸ÑÑÑÑÐ¸Ð¼Ð¸ÑÑ Ð²ÑÑÐ»Ð¾Ð¿Ð½ÑÐ¼Ð¸ Ð³Ð°Ð·Ð°Ð¼Ð¸ Ð¸ Ð°ÑÐ¼Ð¾ÑÑÐµÑÐ¾Ð¹. ÐÐ´Ð½Ð¸Ð¼ Ð¸Ð· Ð¾ÑÐ½Ð¾Ð²Ð½ÑÑ ÑÐ°ÐºÑÐ¾ÑÐ¾Ð² Ð¸Ð·Ð»ÑÑÐµÐ½Ð¸Ñ ÑÑÐ¼Ð° Ð² Ð°Ð²ÑÐ¾Ð¼Ð¾Ð±Ð¸Ð»ÑÐ½Ð¾Ð¹ Ð²ÑÑÐ»Ð¾Ð¿Ð½Ð¾Ð¹ ÑÐ¸ÑÑÐµÐ¼Ðµ ÑÐ²Ð»ÑÐµÑÑÑ Ð³Ð»ÑÑÐ¸ÑÐµÐ»Ñ. ÐÐ°ÐºÐ¾Ð½Ñ Ð¸ Ð¿ÑÐµÐ´Ð¿Ð¾ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÑÐµÐ±Ð¸ÑÐµÐ»ÐµÐ¹ ÑÑÐµÐ±ÑÑÑ Ð½Ð°Ð´ÐµÐ¶Ð½ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð¿ÑÐ¾Ð³Ð½Ð¾Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸Ðº Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð·Ð²ÑÐºÐ° Ð¾Ñ Ð³Ð»ÑÑÐ¸ÑÐµÐ»ÐµÐ¹. ÐÑÐµÐ´Ð¼ÐµÑÐ¾Ð¼ Ð´Ð°Ð½Ð½Ð¾Ð³Ð¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ Ð²ÑÑÐ¸ÑÐ»ÐµÐ½Ð¸Ðµ Ð¿Ð¾ÑÐµÑÑ Ð¿ÐµÑÐµÐ´Ð°ÑÐ¸ Ð¸ ÑÑÐ¾Ð²Ð½ÐµÐ¹ Ð·Ð²ÑÐºÐ¾Ð²Ð¾Ð³Ð¾ Ð´Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð²Ð½Ðµ Ð³Ð»ÑÑÐ¸ÑÐµÐ»Ñ (Ð½Ð° ÑÐ°ÑÑÑÐ¾ÑÐ½Ð¸Ð¸ 20 ÑÐ¼ Ð¾Ñ Ð²ÑÑÐ»Ð¾Ð¿Ð½Ð¾Ð¹ ÑÑÑÐ±Ñ), ÑÐ°ÑÑÑÐ¸ÑÐ°Ð½Ð½ÑÑ Ð½Ð° ÑÐ°ÑÑÐ¾ÑÐ°Ñ 50-1250 ÐÑ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð¼ÐµÑÐ¾Ð´Ð° ÐºÐ¾Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð². Ð ÑÐ¾Ð´Ðµ ÑÐ°Ð±Ð¾ÑÑ ÑÐ°ÐºÐ¶Ðµ Ð±ÑÐ»Ð¾ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð², Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ ÑÐ¸ÑÐ»ÐµÐ½Ð½Ð¾ Ð¸ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½Ð¾. ÐÑÐµÐ´ÑÐºÐ°Ð·Ð°Ð½Ð½ÑÐµ Ð¸ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐµ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÑ ÑÑÐ¾Ð´ÑÑÑÑ Ñ Ð¿Ð¾Ð³ÑÐµÑÐ½Ð¾ÑÑÑÑ, Ð½Ðµ Ð¿ÑÐµÐ²ÑÑÐ°ÑÑÐµÐ¹ 4,1%. ÐÐ°Ð»ÐµÐµ Ð±ÑÐ»Ð¾ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ TL Ð¸ SPL Ð´Ð»Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð³ÐµÐ¾Ð¼ÐµÑÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² Ð³Ð»ÑÑÐ¸ÑÐµÐ»Ñ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¼ÐµÑÐ¾Ð´Ð° ÐºÐ¾Ð½ÐµÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð². ÐÐ»Ð¸ÑÐ½Ð¸Ðµ Ð²Ð°Ð¶Ð½ÑÑ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ Ð¸Ð·ÑÑÐ°ÐµÑÑÑ Ð´Ð»Ñ Ð¾Ð±ÐµÑÐ¿ÐµÑÐµÐ½Ð¸Ñ ÑÑÐºÐ¾Ð²Ð¾Ð´ÑÑÐ¸Ñ Ð¿ÑÐ¸Ð½ÑÐ¸Ð¿Ð¾Ð² Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ.
description: Automobiles are primarily responsible for most of the noise that pollutes the environment. The noise in such cases is due to the large pressure difference between the expanding exhaust gases and the atmosphere. One of the main factors of noise radiation in an automobile exhaust system is a silencer. Consumer laws and preferences require reliable methods for predicting sound transmission characteristics from silencers. The subject of this study is the calculation of transmission losses and sound pressure levels outside the muffler (at a distance of 20 cm from the exhaust pipe), calculated at frequencies of 50-1250 Hz using the finite element method, analytical model and experiment. In the course of the work, a comparison was made of the results obtained numerically and experimentally. The predicted results corresponded to the experimental results. Results of TL and SPL for various geometrical parameters of the silencer was compared based on the finite element method. The influence of important design parameters is being studied to provide design guidelines.