Bill Eccles PhD - Bolt Science（比尔埃克尔斯博士螺栓科学）.pdf

BBOOLLTT Why Nuts and Bolts can Self-Loosen BBOOLLTT SCIENCE SCIENCE Bill Eccles PhD 1. Introduction1. Introduction Practically every engineering product with any degree of complexity uses threaded fasteners. A key advantage of threaded fasteners over the majority of other joining methods is that they can be dis-assembled and re-used. However, this can be a source of problems in that they can self-loosen. Such self-loosening has been a problem since Figure 1 the start of the industrial revolution and for the last 150 In most applications, bolts are used in years inventors have been devising ways in w