Accession Number : ADA135369

Title :   Mechanical Ice Release Processes. I. Self-Shedding from High-Speed Rotors,

Corporate Author : COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH

Personal Author(s) : Itagaki,K

PDF Url : ADA135369

Report Date : Oct 1983

Pagination or Media Count : 14

Abstract : Ice accreted on high-speed rotors operating in supercooled fog can be thrown off by centrifugal force, creating severe unbalance and dangerous projectiles. A simple force balance analysis indicates that the strength of accreted ice and its adhesive strength can be obtained by measuring the thickness of the accretion, the location of the separation, the rotor speed, and the density. Such an analysis was applied to field and laboratory observations of self-shedding events. The results agree reasonably well with other observations. (Author)

Descriptors :   *Rotors, *Ice, Ice formation, Propeller blades, Rotor blades(Rotary wings), Accumulation, Thickness, Tensile strength, Shear strength, Adhesion, Release, Laboratory tests

Subject Categories : Snow, Ice and Permafrost

Distribution Statement : APPROVED FOR PUBLIC RELEASE