TY - JOUR
T1 - BASIC RESEARCH ON THE VIBRATION AND NOISE OF AN INTERNAL COMBUSTION ENGINE (3RD REPORT, ACOUSTIC ANALYSIS OF THE CYLINDER-CRANK SYSTEM).
AU - Nagaike, Masaru
AU - Nagamatsu, Akio
AU - Kijimoto, Shinya
PY - 1986
Y1 - 1986
N2 - The space distribution and frequency spectrum of the sound pressure and acoustic intensity emitted from the outer surface of an internal combustion engine are analyzed by both the boundary element method and the usual simple method. The experimental value of the vibrational velocity of the outer surface of the cylinder block when a piston head is excited, is used as the input data of the above calculation. The sound pressure and acoustic intensity around the actual engine are measured by the vibration test when a piston head is excited with harmonic force under conditions of a non-reflective room. Accuracy of the calculated results, both by the boundary element method and by the usual simple method, are investigated by comparing them with the experimental results.
AB - The space distribution and frequency spectrum of the sound pressure and acoustic intensity emitted from the outer surface of an internal combustion engine are analyzed by both the boundary element method and the usual simple method. The experimental value of the vibrational velocity of the outer surface of the cylinder block when a piston head is excited, is used as the input data of the above calculation. The sound pressure and acoustic intensity around the actual engine are measured by the vibration test when a piston head is excited with harmonic force under conditions of a non-reflective room. Accuracy of the calculated results, both by the boundary element method and by the usual simple method, are investigated by comparing them with the experimental results.
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U2 - 10.1299/jsme1958.29.4339
DO - 10.1299/jsme1958.29.4339
M3 - Article
AN - SCOPUS:0022879561
VL - 29
SP - 4339
EP - 4343
JO - Bulletin of the JSME
JF - Bulletin of the JSME
SN - 0021-3764
IS - 258
ER -