The invention provides a tuber
crop skin breaking rate prediction method based on an accumulative damage model, and the method comprises the steps: taking the force, speed, time, energy and other parameters of
tuber crops in the mechanical harvesting and conveying process as the input; the instantaneous damage rate of the friction and abrasion channel and the instantaneous damage rate of the
impact and contusion channel are calculated through the friction and abrasion channel and the
impact and contusion channel respectively, meanwhile, the long-term friction and instantaneous
impact effects are represented, and the mechanical mechanism of tuber
crop skin breaking is completely described; based on the instantaneous damage rate, establishing an accumulated damage rate model, converting the tuber
crop epidermis damage process into a quantifiable energy damage evolution model, and calculating an accumulated damage degree; calculating a predicted value of the
skin breakage rate based on a
probability mapping function; compared with the prior art, the method has the advantages that the experiment
workload is obviously reduced, the tedious multi-parameter fitting process is avoided, and meanwhile, by optimizing the
friction sensitivity coefficient and the impact
sensitivity coefficient, the method can be used for predicting the skin breaking rate of various
tuber crops.