Analysis of Dynamics Characteristics and Design of vibrating Table for Expendable Pattern Casting Process

소실모형주조용 진동장치의 동특성 분석 및 설계

Vibration table is required to obtain high packing density in expendable pattern casting process. Packing density, which is an important manufacture factor, depends on the vibration pattern induced by vibration table. Modal test is utilized to identify the dynamic characteristics of vibration table. And finite element method is used to modify flask by fixing the stiffener. The positions of stiffener to modify are found and the natural frequency could be easily shifted to the objective value by using sensitivity analysis.