Author:Shatalov, MY; Joubert, SV; Coetzee, CEDate:Jan 2011Standing waves can exist as stable vibrating patterns in perfect structures such as spherical bodies, and inertial rotation of the body causes precession (Bryan’seffect). However, an imperfection such as light mass anisotropy destroys the ...Read more
Author:De wet Strydom, JPDate:Aug 2000The main objective of this thesis was the development and testing of a concept that can potentially be implemented on a rock drill to attenuate the operating frequency of a rock drill. The concept must be able to account for minor changes in ...Read more
Author:Heyes, AMDate:Apr 2001Examination of a failed roof tube from a bagasse boiler showed transverse through-cracks and extensive pitting. The pitting was typically oxygen induced pitting and numerous fatigue cracks had started within these pits. It is highly probable ...Read more
