Analysis of impact damage of <i>Fritillaria ussuriensis</i> Maxim using a free drop experimental study

The impact damage is the most destructive effect on FUM during drum screening. To explore of screening, a free-drop test device was built to simulate FUM. Adopting an L16(45) orthogonal experiment scheme, we investigated mass, dropping height, collision material, and number collisions bruise depth specific surface area bruise, peak force, Ratio amplitude attenuation. Then, analyzed influence these four factors using single factor for each factor. Orthogonal experiments identified main secondary affecting outcome; had no significant while material only with Single-factor results indicate that bruising maximum force increase first increases then reduces. periodically changes. increased hardness ratio attenuation decreased material. changes drop time, decreases.