Forced Vibration Harmonic Response Analysis of Semi-mobile Crusher Station

The objective of the analysis was to design SMC structure to withstand dynamic loading condition due to crusher operation. A study about forced vibration analysis for Semi-mobile crusher (SMC) using finite element analysis (FEA) was carried out to determine the natural frequencies, mode shapes and forced harmonic frequency response characteristics. Natural frequency analysis and followed by harmonic frequency response analysis were performed using finite element calculations to find out critical frequencies and its corresponding peak displacements and dynamic stresses. The results of the study show the weakest direction and critical frequencies of the structure. Also, the dynamic displacement and stresses were found to be acceptable thereby the structural dynamic integrity of the SMC structure was established.