Development of Tracking Error Frequency Response Function and Aircraft Ride Quality Design Criteria for Vertical and Lateral Vibration
Final rept. 1 Jan 1969-1 Aug 1970
AERONAUTICAL SYSTEMS DIV WRIGHT FIELD OH
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The report presents the results of a study of available experimental literature in order to more clearly define the shape of frequency response functions for human psychomotor performance under vertical and lateral vibration conditions. The performance frequency response functions as developed are based on a constant tracking error and are used in the calculation of a human performance index for some aircraft. Evaluation of human performance index values and associated crew effectiveness estimates are used to determine ride quality criteria in terms of exposure time and crew tolerance levels for vertical, lateral, and combined-axes vibration inputs. A comparison was made of the shape of vertical and lateral performance curves derived in the study with vertical and lateral objectionable discomfort curves derived independently for commercial transport passenger ride quality criteria development. By allowing for soft seat versus hard seat responses, close general agreement in the shapes of the frequency response curves is noted.
- Human Factors Engineering and Man Machine Systems