Abstract In order to solve the problem of loosing and disengaging of the thread connecting parts，a new type of nut made of Fe-based shape memory alloy (SM A)is proposed，basing on the functional materials．The anti-loosing mechanism of the nut was mainly analyzed by theory，and the static and dynamic anti-loosing performance and the repeatability performance were studied by experiments．The results show that the nut not only has very good anti-loosing performance，but also can be used repeatedly．
LI Jun-Liang, DU Yan-Liang, SUN Bao-Chen, SHEN Ying-Ming. Research on a new-type intelligent locknut. Chinese Journal of Engineering Design, 2003, 10(3): 154-157.
