Damage energy absorption structure of helicopter tail protection ducted tail rotor

The invention relates to an energy absorption structure. The energy absorption structure is particularly used for a tail skid and a tail section of a helicopter deform together to absorb tail skid landing collision energy. The energy absorption structure is used for collision energy absorption of a helicopter empennage duct and is provided with a side wall and a bottom wall; the side wall and thebottom wall are laminated boards; each laminated board is provided with at least three layers, and the end of the side wall is provided with a flange which is used for being fixedly connected with a lower structure of the duct. The structure solves the technical problems that an existing installation structure is provided with a tail skid connector, a support, a reinforcing element and other partsand is complex in structure, heavy, difficult to install and maintain and high in production cost. 本发明涉及种吸能结构，特别用于直升机尾橇和尾段共同变形吸收尾橇着陆撞击能量，该吸能结构用于直升机尾翼涵道的碰撞吸能，该吸能结构具有侧壁和底壁；所述的侧壁和底壁均为层压板；层压板至少3层；侧壁的端部具有翻边，所述的翻边用于与涵道下部结构固定连接。解决了现