Experimental and theoretical investigation of static deflection and natural frequency of stepped cantilever beam
الباحث الأول:
Abbas Ali Diwan
الباحثين الآخرين:
Luay S Al-Ansari, Ali A Al-Saffar, Qusay S Al-Anssari
المجلة:
Australian Journal of Mechanical Engineering
تاريخ النشر:
15 مارس، 2022
مختصر البحث:
A maximum static deflection and natural frequency of aluminium cantilever stepped beam (two steps) were investigated experimentally and theoretically for different values of small and large diameters and for different lengths of larger diameter step…
A maximum static deflection and natural frequency of aluminium cantilever stepped beam (two steps) were investigated experimentally and theoretically for different values of small and large diameters and for different lengths of larger diameter step. Eighty samples of aluminium beams were manufactured using turning machine. The range of the beam diameter was 12–20 mm and the length of beam was 45 cm. Classical Rayleigh method, modified Rayleigh method and finite element using ANSYS software method were adopted to calculate the maximum static deflection and the natural frequency. A good agreement was found for the static deflection at different positions of applied load between the experimental results and the theoretical results, ANSYS and modified Rayleigh method. The experimental results of the natural frequency showed that there was a consistent with the theoretical results particularly when there is a minor difference between the larger and smaller diameters of the stepped beam.
