Pulse Sequence Frequency Selection Method of High Frequency Shake-out Machine

摘要

The pulse sequence frequency is an important control parameter of shake-out machine. Traditionally, the selection is done by trial and error. This method is low in efficiency, wastes energy in repeated impact tests, and the selected pulse frequency reliability is low, so it often fails to get good shake-out effect. Aiming at the shortcomings of the trial and error method, the method of selecting the pulse frequency of air hammer by means of modal analysis and harmonic response analysis of castings is proposed. The value range of frequency is greatly reduced and the optimization efficiency of pulse frequency is improved by means of this method.