Analysis of a High-Speed Flexible Four-Bar Linkage - Part II: Analytical and Experimental Results on the Apollo
By using the equations of motion derived from the virtual displacement , a general finite element analysis computer code FEMAP (Four-bar Elastic Mechanism Analysis Program) for the planar motion is developed on the Apollo computer. The output of this program includes the following analysis for any point in the mechanism: velocity, acceleration, natural frequency, displacement, stress and strain. The displacement, stress and strain can be either quasi-static or full vibration analysis. The animation of the entire motion of the flexible linkage can be displayed on the screen. Analytical results are compared with results from a new experimental method which combines high-speed photography with a digital image processing technique.
F. W. Liou and A. G. Erdman, "Analysis of a High-Speed Flexible Four-Bar Linkage - Part II: Analytical and Experimental Results on the Apollo," Journal of Vibration and Acoustics, American Society of Mechanical Engineers (ASME), Jan 1987.
The definitive version is available at https://doi.org/10.1115/1.3269821
Mechanical and Aerospace Engineering
Keywords and Phrases
Linkages; Displacement; Motion; Stress; Computers; Equations of Motion; Finite Element Analysis; Image Processing; Vibration Analysis; Mechanisms
Article - Journal
© 1987 American Society of Mechanical Engineers (ASME), All rights reserved.