Vardhan, H.Rao, Y.V.Karmakar, N.C.2026-02-082004Noise and Vibration Worldwide, 2004, Vol.35, 9, p.15 -289574565https://doi.org/10.1260/0957456042880255https://idr.nitk.ac.in/handle/123456789/34637The noise analysis of heavy earth moving machinery deployed in opencast mines and development of suitable maintenance guidelines for its attenuation were discussed. The impact of periodic maintenance on the noise characteristics of machines was studied. The maintenance schedule for which maximum fluctuation in the noise level occured was analyzed. The noise control of heavy earth moving equipment used in opencast was also elaborated.Broad band noiseEquivalent continuous noise levelFrequency analysisMachine maintenance scheduleNoise control approachesNoise doseSound pressure level