Optimization of rotating blades with dynamic-behavior constraints

Ting Nung Shiau, S. J. Chang

研究成果: Article

3 引文 斯高帕斯(Scopus)

摘要

The optimal design of rotating pretwisted blades subject to dynamic behavior constraints is studied. The restrictions on multiple blade natural frequencies and on maximum blade dynamic deflections are considered the dynamic behavior constraints. The aerodynamic forces acting on the rotating blades are simulated as harmonic excitations. Optimization techniques of the optimality-criterion method and the method of modified feasible directions have been successfully developed and applied to minimize the weight of rotating pretwisted blades. Based on these techniques, the numerical results show that the effect of setting angle on the optimal design weight for the first frequency-constraint case is more significant than that for the second frequency-constraint case. It is also shown that the changes of pretwist angle will considerably affect the optimal design weight for the second frequency-constraint case. However the effect is not significant for the fundamental frequency-constraint case. The results also indicate that the increase of rotating speed will decrease the optimal design weight.

原文English
頁(從 - 到)127-144
頁數18
期刊Journal of Aerospace Engineering
4
發行號2
DOIs
出版狀態Published - 1991 四月

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Materials Science(all)
  • Aerospace Engineering
  • Mechanical Engineering

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