Various solutions for the design of oil-free bearings are discussed in the literature. Adding hydrodynamic preload to the foil bearings by profiling the inner bore of the bearing is one of the most frequently investigated methods for improving the bearing stability and damping character of the entire system. However, this approach leads to a reduced …
Month: June 2019
Element 33 in our International Year of the Periodic Table series is arsenic. Well known for its use as a poison, compounds of arsenic are also used to treat wood, while other arsenic-containing substances were previously used in poultry feed. Arsenic’s best-known use is as a poison. Most often arsenic trioxide was used for poisoning, …