Dimensions of combined acoustic and vibration perception in aircrafts derived by factor analysis of semantic differential data

摘要

An aircraft simulation test was carried out in a mock-up (laboratory equipment) with a sample of 117 subjects. Seven cruising conditions of two aircraft types (4 jet and 3 propeller air-planes) were evaluated using semantic differential (abb.SD) with 15 adjective pairs and the standardized scales of the German "Eigenschaftswoerterliste" (abb. EWL) of Janke & Debus (1981) (multidimensional mood scale0. Using the SD three psychological dimensions were isolated by factor analysis describing the combined acoustic and vibration perception in aircraft. The most important dimension explaining one third of the variance was a comfort factor related to specific sound characteristics such as loudness or roughness and particular vibration attributes. The second dimension was associated with time features of the flight situations and further vibration qualities. The third factor was confined to the perception of tonality.