TY JOUR TI THE DYNAMIC LOAD ANALYSIS OF CATERPILLAR LOGGER STRUCTURAL ELEMENTS AT EXTERNAL INFLUENCE IN THE FORM OF STATIONARY RANDOM PROCESSES KW caterpillar loggers KW dynamic systems KW random processes KW spectral density KW amplitude-frequency characteristics JO Bulletin of KSAU AU Poletaykin, V.F. PY 2013 IS PB Krasnoyarsk State Agrarian University