مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

video

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

sound

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Version

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View:

233
مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Download:

102
مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Cites:

Information Journal Paper

Title

MULTI-OBJECTIVE OPTIMIZATION OF WEB PROFILE OF RAILWAY WHEEL USING BI-DIRECTIONAL EVOLUTIONARY STRUCTURAL OPTIMIZATION

Pages

  307-318

Abstract

 In this paper, MULTI-OBJECTIVE OPTIMIZATION of RAILWAY WHEEL web profile using bidirectional evolutionary structural optimization (BESO) algorithm is investigated. Using a finite element software, static analysis of the wheel based on a standard load case, and its modal analysis for finding the fundamental natural frequency is performed. The von Mises stress and critical frequency as the problem objectives are combined using different weight factors in order to find the sensitivity number in the method, which specifies which elements to be omitted and which to be added. The iterative process is continued until convergence to an a priori specified material volume. The resulted web profiles show that when the stress is important, material removal is from the middle part of the web, while for frequency as the important objective, the removal is from near the rim part of the web. The suggested profile, corresponding to equal weight factor for the objectives, has a better volume and stress state compared to a standard web profile, and has a more uniform stress distribution. However, higher natural frequency, compared to that of the standard profile, are obtained for larger frequency weight factors, although with a bigger volume. In the end, considering manufacturability of the wheel, the jagged profile resulted from BESO is replaced with a fitted smooth curve and performing the finite element analysis on it. It is seen that there is an improvement in the obtained objectives for the smoothened profile, with no significant change in volume.

Multimedia

  • No record.

    • Cites

  • No record.

    • References

  • No record.

    • Cite

    APA: Copy

    ATAI, ALI ASGHAR, & AZARLU, EHSAN. (2017). MULTI-OBJECTIVE OPTIMIZATION OF WEB PROFILE OF RAILWAY WHEEL USING BI-DIRECTIONAL EVOLUTIONARY STRUCTURAL OPTIMIZATION. THE JOURNAL OF COMPUTATIONAL APPLIED MECHANICS, 48(2), 307-318. SID. https://sid.ir/paper/301731/en

    Vancouver: Copy

    ATAI ALI ASGHAR, AZARLU EHSAN. MULTI-OBJECTIVE OPTIMIZATION OF WEB PROFILE OF RAILWAY WHEEL USING BI-DIRECTIONAL EVOLUTIONARY STRUCTURAL OPTIMIZATION. THE JOURNAL OF COMPUTATIONAL APPLIED MECHANICS[Internet]. 2017;48(2):307-318. Available from: https://sid.ir/paper/301731/en

    IEEE: Copy

    ALI ASGHAR ATAI, and EHSAN AZARLU, “MULTI-OBJECTIVE OPTIMIZATION OF WEB PROFILE OF RAILWAY WHEEL USING BI-DIRECTIONAL EVOLUTIONARY STRUCTURAL OPTIMIZATION,” THE JOURNAL OF COMPUTATIONAL APPLIED MECHANICS, vol. 48, no. 2, pp. 307–318, 2017, [Online]. Available: https://sid.ir/paper/301731/en

    Related Journal Papers

  • No record.

    • Related Seminar Papers

  • No record.

    • Related Plans

  • No record.

    • Recommended Workshops






    Move to top
    telegram sharing button
    whatsapp sharing button
    linkedin sharing button
    twitter sharing button
    email sharing button
    email sharing button
    email sharing button
    sharethis sharing button