TY - GEN
T1 - Crashworthiness Analysis on Multiple Styles of Skid Landing Gear
AU - Ding, Menglong
AU - Cai, Jiandong
AU - Zhang, Yanyan
AU - Tu, Jiawei
AU - Xie, Anhuan
AU - Zhang, Dan
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022/10
Y1 - 2022/10
N2 - The skid landing gear is widely used in rotorcraft with advantages over wheeled landing gear. Crashworthiness is critical for protecting crews from injury in an emergency landing and landing gear plays a considerable important role in crashworthiness because it is the first structure hitting the ground. Hence the crashworthiness of four styles of skid landing gear with various thicknesses of the crossbeam or struts were numerically analyzed by using the finite element code LS-DYNA. The results show Bow style has the best comprehensive crashworthiness performance while the Strut style and Arc style have fair crashworthiness performance, but the Oct style has the largest weight, acceleration peak, and the lowest energy absorption ratio, which shows the worst crashworthiness. Also, further optimization with a tapered crossbeam design was conducted and evaluated, finding that the weight can be significantly reduced with the same level of crashworthiness.
AB - The skid landing gear is widely used in rotorcraft with advantages over wheeled landing gear. Crashworthiness is critical for protecting crews from injury in an emergency landing and landing gear plays a considerable important role in crashworthiness because it is the first structure hitting the ground. Hence the crashworthiness of four styles of skid landing gear with various thicknesses of the crossbeam or struts were numerically analyzed by using the finite element code LS-DYNA. The results show Bow style has the best comprehensive crashworthiness performance while the Strut style and Arc style have fair crashworthiness performance, but the Oct style has the largest weight, acceleration peak, and the lowest energy absorption ratio, which shows the worst crashworthiness. Also, further optimization with a tapered crossbeam design was conducted and evaluated, finding that the weight can be significantly reduced with the same level of crashworthiness.
KW - crashworthiness
KW - energy absorption
KW - failure mode
KW - finite element analysis
KW - skid landing gear
UR - http://www.scopus.com/inward/record.url?scp=85142416516&partnerID=8YFLogxK
U2 - 10.1109/ICMEAS57305.2022.00023
DO - 10.1109/ICMEAS57305.2022.00023
M3 - Conference article published in proceeding or book
AN - SCOPUS:85142416516
T3 - Proceedings - 2022 8th International Conference on Mechanical Engineering and Automation Science, ICMEAS 2022
SP - 76
EP - 80
BT - Proceedings - 2022 8th International Conference on Mechanical Engineering and Automation Science, ICMEAS 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th International Conference on Mechanical Engineering and Automation Science, ICMEAS 2022
Y2 - 14 October 2022 through 16 October 2022
ER -