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Energy Absorption Systems for Mine Cages. Final Report, Vol. II. Study Energy Absorption Characteristics of a Pit Bottom Buffer.

Penning FA; Brinkmann MH; Robertson DW
For Reference Only At Bureau Libraries :139 pages
An experimental and analytical investigation was conducted on a recoverable pit bottom buffer using a free-fall test tower. The four-sided buffer was constructed of reinforced rubber slabs loaded along their edge. A series of constant energy and maximum design velocity tests were conducted. Static testing of the buffer established the load-deformation behavior. Creep was evident during the loading and unloading cycle. Electronic instrumentation measured deceleration using four accelerometers; overall and intermediate movement was found from four displacement transducers, bending strains were recorded at four locations, and base reactions were measured by using four load cells. A dynamic computer model was written for the response of the buffer. Displacement- and acceleration-time plots show close correspondence with experimental data for the 10 experiments. Data from accelerometers, displacement transducers, strain gages, and load cells are included. The computer program listing and displacement- and acceleration-time plots are also presented.
Publication Date
Document Type
CP; Final Contract Report;
Fiscal Year
Identifying No.
OFR 133(2)-81
NIOSH Division
Source Name
For Reference Only At Bureau Libraries
Performing Organization
Colorado School of Mines
Page last reviewed: October 29, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division