Ride Index Structure and Development Methodology J2834_201910

DOI: https://doi.org/10.4271/J2834_201910

Issuing Committee: Vehicle Dynamics Standards Committee

Publisher: SAE International

Pages: 34

Rationale: This recommended practice indicates the current state of technology regarding the relationship between the human-to-vehicle interface vibration magnitude and human discomfort. The appendix is concerned with providing a uniform and convenient method of indicating the subjective severity of the motion and vibration but does not present limits. It is in no way related to quantifying health and safety aspects of motion and vibration for which an entirely different methodology would be needed. This methodology is intended to predict human sensitivity to motion and vibration for comparative purposes (i.e., condition A versus condition B) relative to a global (i.e., absolute) adjectival psychometric scale. See Appendix C for additional supporting rationale. This revised edition incorporates changes due to the expanded scope of SAE J1441 to include vehicle ride, and a revised Figure 1 to clarify the potential non-equal spacing of adjectives for a rating scale developed using psychometric adjectives.