Material Mechanical Performance about Worm Bending and Twisting Deformation for Civil Engineering

Abstract:

On the condition of line elastic and small deformation, more than 80% failure of the drive shaft is due to fatigue damage. It relates to the alternating stress of the drive shaft under the combination effect of bending and twisting. When drive shaft is under the combination effect of bending and twisting for civil engineering, torsion shear stress is perpendicular to bending normal stress. They can’t be simply stacked. Combining with the belt conveyor tension device of the worm transmission, first, simplify the external force; do stress analysis in horizontal plane and vertical plane respectively. Then make corresponding bending moment figure and separately calculate the internal force, stress of each basic deformation and make comprehensive bending moment figure and torque figure. Then use the application of superposition principle, the fourth strength theory to calculate worm transmission’s strength. The method makes senses to other transmission mechanism shaft bending and twisting combination strength analysis as a reference.

• Periodical: Advanced Materials Research (Volume 568)
• Pages: 187-190
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.568.187
• Online since: September 2012
• Authors: Xu Qin Chen, Gui Lan Jiang, Guang Zhen Cheng
• Keywords: Bending, Material Stress Analysis, Mechanics Performance, Twisting

References

[1] L.G. Pu.: Mechanical Design (Higher Education Press, China 2006) (in Chinese).

[2] Z.H. Shan: Mechanics Materials (Higher Education Press, China 2008) (in Chinese).

[3] C.W. Liu: Journal of Changsha Railway University (social science edition) 2004(12), pp.147-148.

[4] G.Z. Cheng: Coal mine machinery, Vols. 25 (2004) No. 12, pp.14-16(in Chinese).

[5] H.W. Liu: Materials Mechanics (Higher Education Press, China 2004) (in Chinese).

[6] Y.J. Jia and G.Z. Cheng: Hydraulic and pneumatic, Vols. 33 (2009) NO. 9, pp.4-6 (in Chinese).