TY - JOUR ID - 242198 TI - The influence of magnetorheological dampers on the biodynamic response of the human (pilot) body in various flight maneuvers JO - Journal of Theoretical and Applied Vibration and Acoustics JA - TAVA LA - en SN - 2423-4761 AU - Mohammad Khanlo, Heshmatolah AU - Dehghani, Reza AD - Department of Aerospace Engineering, Shahid Sattari Aeronautical University of Science and Technology, Tehran, Iran AD - Department of Mechanical Engineering, Graduate University of Advanced Technology, Kerman, Iran Y1 - 2020 PY - 2020 VL - 6 IS - 1 SP - 81 EP - 102 KW - MR damper KW - Transmissibility KW - Biodynamic response KW - Human Body KW - Flight maneuvers DO - 10.22064/tava.2021.105238.1132 N2 - This paper presents the effect of a magnetorheological (MR) damper in the aircraft seat system on the body's biodynamic response for different flight maneuvers. For this purpose, discrete models 4 and 7 degrees of freedom for human modeling and the Bouc-Wen model are used to model MR damper. In various flight maneuvers, the changes in acceleration g are recorded and applied to the desired models after processing. Models used for the human body and the MR damper are compared for validation with previously published researches. The dynamic responses of the human body to these inputs without MR dampers and with an MR damper are investigated. The transmissibility[1] of the seat to the human body is used as a parameter that is common in these types of analyses. The results show that the use of MR dampers has a significant effect on reducing the transmissibility in maneuvers with a sudden increase in acceleration and also significant changes in the frequency at which maximum transmissibility is achieved.   UR - https://tava.isav.ir/article_242198.html L1 - https://tava.isav.ir/article_242198_5fd9bf8fc836603cf9659544e4808c80.pdf ER -