Study Of Damage Model And Vibration Property Of Radiogram

Traditional fragility theory is based on the dynamic response of package products in simple shock load such as drop shock and horizontal shock, the fragility of package products is mechanical shock fragility. This theory doesn't study damage reasons of package products in complex load such as repetitive shock load, harmonious load, period load and random load. Cushioning package design methods such as'Five Steps Methods'has some theoretical shortages such as evaluating and estimating fragility of package products . In this article, as a typical electronic product,'Feng-Huo'radiograms are taken for object to study damage model, vibration property and vibration property of radiograms in complex load.At first, a package product is simplified respectively to simple degree linear system with damp and two degrees linear system with damp to analyze dynamic response in repetitive shock load, harmonious load, period load and random load. Displacement, velocity and acceleration response of simple degree linear system with damp in repetitive shock load, harmonious load, period load and random load and displacement response of two degrees linear damp system in repetitive shock load and harmonious load are achieved. Secondly, the vibration property of'Feng-Huo'radiograms is achieved with ANSYS, a finite element analysis software, the dynamic response achieved, and the vibration property of'Feng-Huo'radiograms studied.The method and idea of research in this article establish base for further research of damage model, vibration property and vibration fragility of typical electronic products.