DESIGN AND OPTIMIZATION OF EQUAL GRADIENT THIN-WALLED TUBE: BIONIC APPLICATION OF ANTLER OSTEON

PENG HUO; XIAOWEN FAN; XIN YANG; HAN HUANG; JIANPING LI; SHUCAI XU

doi:10.1590/1679-78256406

DESIGN AND OPTIMIZATION OF EQUAL GRADIENT THIN-WALLED TUBE: BIONIC APPLICATION OF ANTLER OSTEON

Authors

PENG HUO COLLEGE OF MECHANICAL AND ELECTRICAL ENGINEERING, HEBEI AGRICULTURAL UNIVERSITY, BAODING 071000, HEBEI, CHINA / STATE KEY LABORATORY OF AUTOMOTIVE SAFETY AND ENERGY, TSINGHUA UNIVERSITY,BEIJING 100084, BEIJING, CHINA HTTPS://ORCID.ORG/0000-0002-0316-7872
XIAOWEN FAN COLLEGE OF MECHANICAL AND ELECTRICAL ENGINEERING, HEBEI AGRICULTURAL UNIVERSITY, BAODING 071000, HEBEI, CHINA / STATE KEY LABORATORY OF AUTOMOTIVE SAFETY AND ENERGY, TSINGHUA UNIVERSITY,BEIJING 100084, BEIJING, CHINA HTTPS://ORCID.ORG/0000-0002-7505-6303
XIN YANG COLLEGE OF MECHANICAL AND ELECTRICAL ENGINEERING, HEBEI AGRICULTURAL UNIVERSITY, BAODING 071000, HEBEI, CHINA HTTPS://ORCID.ORG/0000-0003-2516-9235
HAN HUANG STATE KEY LABORATORY OF AUTOMOTIVE SAFETY AND ENERGY, TSINGHUA UNIVERSITY,BEIJING 100084, BEIJING, CHINA HTTPS://ORCID.ORG/0000-0002-9766-0122
JIANPING LI COLLEGE OF MECHANICAL AND ELECTRICAL ENGINEERING, HEBEI AGRICULTURAL UNIVERSITY, BAODING 071000, HEBEI, CHINA HTTPS://ORCID.ORG/0000-0003-2807-3888
SHUCAI XU STATE KEY LABORATORY OF AUTOMOTIVE SAFETY AND ENERGY, TSINGHUA UNIVERSITY,BEIJING 100084, BEIJING, CHINA HTTPS://ORCID.ORG/0000-0003-0689-2022

DOI:

https://doi.org/10.1590/1679-78256406

Abstract

TO IMPROVE THE CRASHWORTHINESS AND ENERGY ABSORPTION OF THIN-WALLED TUBE STRUCTURES, A BIONIC THIN-WALLED TUBE WAS DESIGNED BASED ON THE STRUCTURAL CHARACTERISTICS OF ANTLER OSTEON AND THE PRINCIPLE OF STRUCTURAL BIONICS AND HAD THE SAME INNER AND OUTER DIAMETERS AND THE SAME GRADIENT THICKNESS AS ANTLER OSTEON. A NONLINEAR FINITE ELEMENT METHOD IS USED TO SIMULATE THE CRASHWORTHINESS OF A THIN-WALLED TUBE WITH EQUAL GRADIENT THICKNESS VARIATION (EGTTS) UNDER AXIAL AND OBLIQUE LOADS. THE CRASHWORTHINESS OF EGTTS-7 (EGTTS WITH 7 LAYERS) WAS EVALUATED USING THE COMPLEX PROPORTIONAL ASSESSMENT(COPRAS). A MULTI-OBJECTIVE PARTICLE SWARM OPTIMIZATION (MOPSO) ALGORITHM WAS USED TO OPTIMIZE THE EGTTS-7 AND THE PARETO BOUNDARY WAS USED TO OBTAIN THE OPTIMAL STRUCTURE PARAMETERS OF THE EGTTS-7 BY USING THE LOADING ANGLES OF 0°, 10°, 20°, AND 30°. IT ISFOUND THAT THE CRASHWORTHINESS OF THE EGTTS IS BEST WHEN THE AXIAL LOAD WEIGHT FACTOR OF THE CASE IS LARGE. COMPARED WITH EGTTS AND CIRCULAR TUBES(CT), FMAX CAN BE REDUCED BY UP TO 50.1% AND EA CAN BE INCREASED BY UP TO 22.7%.

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Published

2021-03-01

Issue

Vol. 18 No. 3 (2021)

Section

Articles

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