Precise Stability Analysis of Stepped Telescopic Booms and Practical Algorithm

Liang Du; Peng Lan; Nian Li Lu

doi:10.4028/www.scientific.net/AMM.395-396.871

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 395-396Precise Stability Analysis of Stepped Telescopic...

Precise Stability Analysis of Stepped Telescopic Booms and Practical Algorithm

Abstract:

To analyze the stability of stepped telescopic booms accurately, using vertical and horizontal bending theory, this paper established the deflection differential equations of stepped column model of arbitrary sectioned telescopic boom, the stability were analyzed, and obtained the precise expression of the buckling characteristic equation; Took certain seven-sectioned telescopic booms as example, by comparing the results with ANSYS, the accuracy of the equations deduced in this paper was verified. Presented the equivalent component method for the stability analysis of multi-stepped column, the equivalent cross-sectional moment of inertia was deduced by energy method, thus the stability of stepped column equivalent to that of constant section component. By comparing the results with exact value, the precision of equivalent component method was verified which was convenient for stability analysis of telescopic boom.

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Periodical:

Applied Mechanics and Materials (Volumes 395-396)

Pages:

871-876

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.395-396.871

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Online since:

September 2013

Authors:

Liang Du, Peng Lan, Nian Li Lu

Keywords:

Buckling Characteristic Equation, Equivalent Component Method, Stability Analysis, Telescopic Boom

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