Robust Design Optimization of Car-Door Structures with Spatially Varied Material Uncertainties
المؤلفون المشاركون
Zhao, Yuee
Dong, Hai
Liang, Haibin
المصدر
Mathematical Problems in Engineering
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-16، 16ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-11-16
دولة النشر
مصر
عدد الصفحات
16
التخصصات الرئيسية
الملخص EN
This paper presents an effective approach for robust design optimization of car-door structures with spatially varied material properties.
This spatially varied material property causes structural response quantities; for example, the natural frequency and the lateral stiffness coefficient become random variables.
In this regard, the Karhunen-Loève expansion is first used to represent the elastic modulus and the mass density random fields as a series of random variables.
Then, a stochastic finite-element model is formulated for uncertainty quantification of the car-door structure.
Combined with a polynomial-based response surface model to mimic the true performance indicator, this allows one to efficiently evaluate probability constraints for the robust design optimization of the uncertain car-door structure.
In numerical simulations, design variables of the uncertain car-door structure are defined as thickness values of the tailor rolled blank structure at various regions, whereas multiple design objectives are formulated via the structural weight, the first-order natural frequency, and the lateral stiffness coefficient.
Results have shown that the mean value of performance indicators can be generally improved, whereas the response variance is further minimized to archive the robust design objective.
The probability-based constraint is significant to relate the Pareto optimum set to the targeted structural safety level.
The proposed approach is simple, suggesting an attractive tool for the robust design optimization of car-door structures with spatially varied material uncertainties.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Zhao, Yuee& Dong, Hai& Liang, Haibin. 2020. Robust Design Optimization of Car-Door Structures with Spatially Varied Material Uncertainties. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-16.
https://search.emarefa.net/detail/BIM-1201655
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Zhao, Yuee…[et al.]. Robust Design Optimization of Car-Door Structures with Spatially Varied Material Uncertainties. Mathematical Problems in Engineering No. 2020 (2020), pp.1-16.
https://search.emarefa.net/detail/BIM-1201655
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Zhao, Yuee& Dong, Hai& Liang, Haibin. Robust Design Optimization of Car-Door Structures with Spatially Varied Material Uncertainties. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-16.
https://search.emarefa.net/detail/BIM-1201655
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1201655
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر