Dynamic Optimization Design of Engine Crankshaft

Abstract:

With the constant improvement of the engine enhanced index, the crankshaft working conditions are even more critical. For designing a better dynamic performances of crankshaft, dynamic optimization design of crankshaft is researched. Boundary restrictions and dynamic loading conditions that simulate the actual ones are exerted on the finite element model of the crankshaft and its dynamic responses are calculated. Based on the sensitivity analysis method, the to-be-modified parameters are selected from the parameters which vary the dynamic properties greatly. With this method, the dynamic properties of the modified crankshaft could satisfy the design requirements, and lays a solid foundation of the dynamic optimization designing of complete engine.

• Periodical: Applied Mechanics and Materials (Volumes 128-129)
• Pages: 1426-1429
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.128-129.1426
• Online since: October 2011
• Authors: Zhi Qin Cui, Teng Zhang, Xiao Hua Wang, Zhao Hua Xu
• Keywords: Crankshaft, Dynamic Optimization Design, Sensitivity Analysis

References

[1] Meng zhaoming, Chang degong, in: Mechanical optimal design technology and applications [M]. Beijing: China Machine press, 2008: 1～5.

[2] Chen xin, in: Theory method and applications on dynamic design for mechanical structure [M]. Beijing: China Machine press, 1997: 52～57.

[3] Liao boyu, Zhou xinming and Yin zhihong, in: Modern mechanical dynamics and engineering applications [M]. Beijing: China Machine press, 2004: 538～553.

[4] Cui zhiqin, in: Modeling Methods for Dynamics Analysis of Complicated Mechanical Structures [D]. Taiyuan: North University of China, 2005: 64～67.

[5] Yang ruifeng, Cui zhiqin, in: Virtual Designing of Military-equipped Diesel Crankshaft [J]. Journal of North China Institute of Technology, 2005, 26(4): 318～322.

[6] Cui zhiqin, Yang ruifeng, in: Parametric Modeling and Modal Analysis for the Complex Mechanical Structure [J], Chinese Journal of Mechanical Engineering, 2008, 44(2): 132～135.

[7] Cui zhiqin, Yang ruifeng, in: Research on Dynamic Simulations of Highly-Intensified Diesel Engine Block [J]. Journal of North University of China, 2006, 27 (1): 34～37.