Three Dimensional Finite Element Interference Contact Analysis about Cone Screw and Bush of Opposed Biconinal Cone Screw High-Pressure Seawater Hydraulic Pump

Abstract:

The main components of the opposed biconinal cone screw high-pressure seawater hydraulic pump is the rubber bush and metal cone screw, and the interaction of the bush and cone screw is one of the main factors affecting the novel pump performance. The deformation and stress of the bush and cone screw under the initial interference is analyzed by the nonlinear finite element analysis. The analysis shows that: under the effect of the initial interference, large displacement is present to the radial surface of the cone screw, and the displacement of the radial surface mainly affects the displacement vector sum of the cone screw, and the deformation decreases gradually from the middle to the ends of the cone screw, while the cone screw is bending; the deformation in three direction of the bush is close to each other, but the location of the maximum displacement in each direction is different; with the shrink range increasing, the deformation of the cone screw and bush increases, but the deformation of the cone screw is much smaller than that of bush, so the deformation of the bush mainly affects the seal between the cone screw and bush, and the shrink range between the cone screw and bush decreases because of the deformation of the bush. Over the role of the interference force, the maximum von mises stress of the cone screw is an order larger than that of bush, and the maximum von mises stress both increases with the shrink range increasing; although shrink range is different, the location of the maximum von mises about the cone screw and bush is the same.

• Periodical: Applied Mechanics and Materials (Volume 197)
• Pages: 174-178
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.197.174
• Online since: September 2012
• Authors: Xin Hua Wang, Xiu Xia Cao, Shu Wen Sun, Yan Gao
• Keywords: Bush, Cone Screw, Finite Element Analysis (FEA), Large Deformation, Opposed Biconinal

References

[1] Tao Aihua, Yang Shudong, Yu Zuyao, Li Zhuangyun, Simulation of the seawater hydraulic powered underwater operation tools system,. Machine Tool and Hydraulics, pp.189-191, 2003(2).

[2] Nie Songlin, Liu Yinshui, Yu Zuyao, Li Zhuangyun, Development of an underwater tool system driven by seawater hydraulics,. The Ocean Engineering, Vol 22, pp.87-91, August 2004(2).

[3] Yang Shudong, Li Anyua, Tao Aihua, Development of a high pressure seawater hydraulic pump lubricated with seawater,. Hydraulic and Pneumatic, pp.15-17, 2007(10).

[4] Cao Xuepeng, Wang Xiaojuan, Deng Bin, Ke Jian, The development status and key techniques of deep-sea hydraulic power source,. Marine Science Bulletin, vol 29, pp.466-471, August 2010(4).

[5] Zhao Jisong, Yang Shudong, Pilot study about the contaminant sensitivity of seawater hydraulic pumps,. Hydraulic and pneumatic, Vol 4, pp.68-70, (2005).

[6] Bathe K, Ramm E, Wilson E L. Finite element formulation for large deformation dynamic analysis [J]. J mech Eng, 1975, 9: 353~386.

[7] Bai Xin-li, Zhao Xin-hua. Analysis of large deformation elastoplastic contact through finite elements [J]. Computers ＆ Structures, 1988, 30(4): 975~978.

DOI: 10.1016/0045-7949(88)90137-x

[8] Sang Jian-bing, Liu Bo, Wang Zhi-liang, Guo Jing. Nolinear Finite Element Analysis of Rubber Like Materials and Determination of Material Parameters [J]. Coal Mane Machinery, 2009, 30 (2): 64~66.

[9] Wang Xinhua, Cao Xiuxia, Zheng Gang, Finite element analysis about stator of opposed biconinal cone screw high-pressure seawater hydraulic pump[J]. MECHNIKA, 2011, 5: 540~544.

DOI: 10.5755/j01.mech.17.5.733

[10] Ye Weidong, Song Yujie, Du Xiuhua, Han Daoquan. Finite Element Analysis of Sealing Performance of Single Progressive Cavity Pump [J]. Lubrication Engneering, 2008, 33 (4): 91~94.