CAJ | 학술논문

基于汽车水泵运行特性，建立了汽车水泵总成半消声室噪声测试系统，介绍了该测试系统的总体设计及功能实现，确立了噪声测试规范。试验表明，皮带传动水泵的试验台架较好地反映了水泵实际工作状态；在隔声罩屏蔽试验平台背景噪声的工程级半消声室里，可有效测试水泵在各工作状态下的噪声等级；采用的四点测试法可很好地评价水泵在各测试条件下的1/3倍频程声功率谱和总声功率。
기우기차수빙운행특성，건립료기차수빙총성반소성실조성측시계통，개소료해측시계통적총체설계급공능실현，학립료조성측시규범。시험표명，피대전동수빙적시험태가교호지반영료수빙실제공작상태；재격성조병폐시험평태배경조성적공정급반소성실리，가유효측시수빙재각공작상태하적조성등급；채용적사점측시법가흔호지평개수빙재각측시조건하적1/3배빈정성공솔보화총성공솔。
Semi-anechoic room noise testing system of automobile water pump assembly was set up based on operating characteristics of the water pump. General layout and function implementation method of this system were presented. Noise testing specification of water pump was established. Test shows that water pump actual operating condition was exhibited well on the test platform with belt transmission. Water pump noise level could be effectively tested at different operating conditions in the engineering level semi-anechoic room with background noise with sound insulation shielding. 1/3 octave sound power spectrum and total sound power of water pump can be evaluated under different test conditions with 4-point test method.