Vol.21, No.2, 2021, pp. 207–213
UDC:

Vibration analysis of the supporting machine helps to improve serviceability and ensures good operating conditions for the equipment. In order to improve its strength and reliability at the design level, it is important to define modal parameters such as natural frequency, mode shape and structural damping properties under varying operating conditions. Modal analysis is a valuable tool for differentiating structural functional attributes. At its maximum recurrence, each structure vibrates at high amplitudes. Vibration assessment should be undertaken to know the structural behaviour of system vibration and to check whether the natural frequency of the structure is kept away from the frequency of the system in order to maintain a strategic distance from collapse. In this paper, a frame is modelled to support a 3.5 MT vibration machine and is analysed for static and dynamic loads. The frequency band is maintained by support conditions and frame stiffness. Stresses are calculated for both anchor bolts and beams. The frequency band is observed to increase with the stiffness of the supporting system. In the study a concrete frame with inverted T-beams is considered in a real structure of LG polymers company and proposed is a new steel beam of I-section between the two inverted T-beams for mounting the sieving classifier. Static, dynamic loads, and operating frequency of the machinery are given by the classifier company as per the machine configuration.

Keywords: static analysis, vibration analysis, machine supporting structure, sieving classifier