Publication Date:
2017-09-16
Description:
An improved two sections pressure bar method (ITSPBM) was presented to analyze the stability of the large slenderness ratio horizontal hydraulic cylinder. The friction moments, the bearing reactions at the two hinge joints as well as the clearances between the piston and the inner wall of the cylinder were taken into consideration. The result shows that the stability safety factor is 6.20. Meanwhile, in the finite element model of the horizontal hydraulic cylinder, the nonlinear friction force and clearances were involved. The result reveals that the stability safety factor is 9.24. Through comparing the results of the ITSPBM, the traditional two sections pressure bar method (TTSPBM), the finite element method (FEM) and the method in NB/T 35020-2013 , it suggests that the stability of the large slenderness ratio horizontal hydraulic cylinder meet the actual engineering requirements and the friction moments at the two hinge joints can extremely enhance the stability.
Print ISSN:
1757-8981
Electronic ISSN:
1757-899X
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
