Abstract
We investigate ice accretion rate of hard rime on a body in oscillation based on experimental results. In order to obtain a mathematical model of the accretion rate, relative velocity to the body and accretion area are considered as the effect of oscillating motion. The consideration shows that the increase of the former quantity is proportional to the square of the reduced frequency k and that of the latter is proportional to k. Therefore, we can obtain the expression of ice accretion rateγ=γ0 (1+Ck) -1 for k<<1, which explains successfully the experimental results of an oscillating wing.