ULTRASONIC GUIDED WAVES DE-ICING SYSTEM FEASIBILITY STUDY
The main challenge faced in a cold environment is ice accumulation on plate-like structures.ships and platforms surface, which serve in Polar Regions, can easily be frozen by ice accretion.In this paper, we introduce a new promising de-icing method by using piezoelectric material to generate ultrasonic guided waves to detach ice from host structure.The main idea for this system is the ultrasonic guided waves can cause strain and displacement at interface of ice layer and host plate according to the propagating theory of shear horizontal waves and lamb waves in plates as well as de-icing mechanism of ultrasonic waves.This study presents a non-thermal de-icing system.Based on 3D de-icing model build in FE simulation,the stress distributions at interface of ice layer and host plate can be obtained.The following de-icing experiment using PZT actuator is carried out at temperature of-12 ℃ to verify the correctness of the simulation results.In de-icing experiment, we can observe that the ice layer is deboned from host plate gradually after the PZT actuator turning on a few seconds later.Both the FE simulation and experimental results demonstrate the feasibility of ultrasonic deicing.
Piezoelectric material Ultrasonic wave De-icing FE simulation
Zhong-hua SHI Ji-feng ZHANG
College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, 150001, P.R.China
国际会议
哈尔滨
英文
415-418
2019-01-11（万方平台首次上网日期，不代表论文的发表时间）