Research Article
An Investigation of the Acoustic Enclosure of an Air Conditioning Compressor Using Response Surface Analysis and Topological Rigidity Optimization
Table 7
A comparison of the test noise indicators.
| | Indicator | Test condition A | Test condition B | Test condition C |
| | Fundamental frequency noise (dB(A)) | 27.45 | 21.24 | 19.79 | | Fundamental frequency loss (dB(A)) | — | 6.21 | 7.99 | | Second harmonic noise (dB(A)) | 21.66 | 21.62 | 15.97 | | Second harmonic loss (dB(A)) | — | 0.04 | 5.69 | | Third harmonic noise (dB(A)) | 28.95 | 27.32 | 23.76 | | Third harmonic loss (dB(A)) | — | 1.63 | 5.19 |
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