Automotive cylinder block casting defects influence the modal parameters

Subject Areas : Vibration Transmision

Amir Hosein Amoozade ¹ (Department of Mechanical Engineering, Semnan Branch, Islamic Azad University, Semnan, Iran)
Morteza Mohammadzaheri ² (Department of Mechanical Engineering, Semnan Branch, Islamic Azad University, Semnan, Iran)
Ehsan Jamshidi ³ (Department of Mechanical Engineering, Semnan Branch, Islamic Azad University, Semnan, Iran)

Received: 2015-08-30 Accepted : 2015-08-30 Published : 2012-08-22

Keywords: Finite Element, Natural frequency, Cylinder block, Modal data,

Abstract :

In this paper , the effect of casting defects on natural Frequency automotive cylinder block is therefore due to the car's software to block Salid work, is a three-dimensional model Then the finite element software Ansys Workbench finite element model and the natural frequency of the cylinder block is drawn in the FEM model is achieved using modal test , the natural frequency of the cylinder block is With the approval of the FEM model by modal test results , simulation of defects in the FEM model is individually made and natural frequency of the cylinder block is obtained for each defect By calculating the difference between the natural frequency of the normal model with defective model , the influence of defects on the natural frequency of each piece is remarkably observed.