COMPARATIVE SPECTRUM ANALYSIS FOR VIBRATION IN A ROTATING MACHINE WITH MULTIPLE VARYING CONDITIONSFOR UNBALANCE FAULT AND CHECK FOR FREQUENCY PEAK DOMINANCE Journal title: International Journal of Mechanical and Production Engineering Research and Development (IJMPERD ) Authors: ARKA SEN, MANIK CHANDRA MAJUMDER, SUMIT MUKHOPADHYAY, ROBIN KUMAR BISWAS Subject(s):