Assessment of dynamic load on ambulance bus elements when transporting people
https://doi.org/10.51187/0135-3152-2023-3-57-61
Abstract
Introduction (problem statement and relevance). The speed and method of transportation of the injured to the place of providing medical care define success and efficiency of treatment. The transportation shall take minimum time, and it shall be as safe, gentle and sparing as possible. It is essential to follow carrying and transportation rules in order to avoid any complications or aggravations. The studies aimed at analysis of dynamic load on ambulance bus elements when transporting injured people are of high priority and relevance. The mathematical model of motion of the bus with arrangement of stretchers in it for transportation of the injured with the system of elastic suspension for the stretchers is recommended in the paper. The results of test runs of the bus along the set route on a road section with the rough cobblestone pavement are given. The graphs of vertical-plane vibration acceleration change in the areas of accomodation of the injured on the stretchers are obtained.
The purpose of the study is to improve ergonomic characteristics of patient transportation by decreasing dynamic load on attachment elements of stretchers to carry the patients.
Methodology and research methods. The paper contains analysis of the results of experiments aimed at study of the bus motion mathematical model and comparison of those results with the experimental data obtained during field tests.
Scientific novelty and results. The bus motion mathematical model allowing adequate and accurate simulation of bus motion under different road conditions, including critical and emergency modes, is developed.
Practical significance. The study of the mathematical model makes it possible to avoid high dynamic loading of ambulance stretchers and to select favourable modes for ambulance bus motion under different road conditions, including critical emergency situations.
About the Author
M. A. Zvezdov
Federal State Unitary Enterprise “Central Scientific Research Automobile and Automotive Engines Institute” (FSUE “NAMI”)
Russian Federation
Russian Federation
Zvezdov M.A. – postgraduate, design engineer
Moscow 125438
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Review
For citations:
Zvezdov M.A. Assessment of dynamic load on ambulance bus elements when transporting people. Trudy NAMI. 2023;(3):57-61. (In Russ.) https://doi.org/10.51187/0135-3152-2023-3-57-61
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