FEA on Modal of Instrumented Indentation Equipment Frame

Abstract

Based on product simulation software, FEA method is used to identify the structural modal of instrumented indentation equipment frame which is the main supporting part of the High-precision instrumented indentation tester developed and realized by our group. From dynamic finite element computations, the multistage natural frequencies of tester frame are derived. The first 6 ranks vibration frequencies are all less than 10Hz, therefore, the loading and unloading process should be kept in quasi static state so as to prevent system resonance.