Modal Strain Based Method for Dynamic Design of Plate-Like Structures
Апстракт
Design optimization of dynamic properties, for example, modal frequencies, can be of much importance when structures are exposed to the shock and/or vibration environments. A modal strain based method is proposed for fast design of natural frequencies of plate-like structures. The basic theory of modal strains of thin plates is reviewed. The capability of determining the highly sensitive elements by means of modal strain analysis is theoretically demonstrated. Finite element models were constructed in numerical simulations. Firstly, the application of the proposed method is conducted on a central-massed flat plate which was topologically optimized by the Reference. The results of modal strain analysis at the first mode have good agreement with the results from the topology optimization. Furthermore, some features of the strain mode shapes (SMSs) of the flat plate are investigated. Finally, the SMSs are applied to the optimization of a stiffened plate. Attention is focused on the distri...butions of the SMSs of the stiffeners, which also shows good agreement with the results from the topology optimization in the previous study. Several higher orders of SMSs are extracted, which can visualize the most sensitive elements to the corresponding modal frequency. In summary, both the theory and simulations validate the correctness and convenience of applying SMSs to dynamic design of plate-like structures.
Извор:
Shock and Vibration, 2016, 2016Издавач:
- Hindawi Ltd, London
Финансирање / пројекти:
- funds of the National Natural Science Foundation of China [11572086, 11402052]
- New Century Excellent Talent in University [NCET-11-0086]
- Fundamental Research Funds for Central Universities
- Scientific Research Innovation Program of Jiangsu Province College Postgraduate [KYLX_0093
- China Scholarship Council [201506090047]
- Интегритет опреме под притиском при истовременом деловању замарајућег оптерећења и температуре (RS-MESTD-Technological Development (TD or TR)-35011)
- Динамика хибридних система сложених структура. Механика материјала (RS-MESTD-Basic Research (BR or ON)-174001)
DOI: 10.1155/2016/2050627
ISSN: 1070-9622
WoS: 000389466700001
Scopus: 2-s2.0-85006025212
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Zhou, Yadong AU - Wu, Shaoqing AU - Trišović, Nataša AU - Fei, Qingguo AU - Tan, Zhiyong PY - 2016 UR - https://machinery.mas.bg.ac.rs/handle/123456789/2356 AB - Design optimization of dynamic properties, for example, modal frequencies, can be of much importance when structures are exposed to the shock and/or vibration environments. A modal strain based method is proposed for fast design of natural frequencies of plate-like structures. The basic theory of modal strains of thin plates is reviewed. The capability of determining the highly sensitive elements by means of modal strain analysis is theoretically demonstrated. Finite element models were constructed in numerical simulations. Firstly, the application of the proposed method is conducted on a central-massed flat plate which was topologically optimized by the Reference. The results of modal strain analysis at the first mode have good agreement with the results from the topology optimization. Furthermore, some features of the strain mode shapes (SMSs) of the flat plate are investigated. Finally, the SMSs are applied to the optimization of a stiffened plate. Attention is focused on the distributions of the SMSs of the stiffeners, which also shows good agreement with the results from the topology optimization in the previous study. Several higher orders of SMSs are extracted, which can visualize the most sensitive elements to the corresponding modal frequency. In summary, both the theory and simulations validate the correctness and convenience of applying SMSs to dynamic design of plate-like structures. PB - Hindawi Ltd, London T2 - Shock and Vibration T1 - Modal Strain Based Method for Dynamic Design of Plate-Like Structures VL - 2016 DO - 10.1155/2016/2050627 ER -
@article{ author = "Zhou, Yadong and Wu, Shaoqing and Trišović, Nataša and Fei, Qingguo and Tan, Zhiyong", year = "2016", abstract = "Design optimization of dynamic properties, for example, modal frequencies, can be of much importance when structures are exposed to the shock and/or vibration environments. A modal strain based method is proposed for fast design of natural frequencies of plate-like structures. The basic theory of modal strains of thin plates is reviewed. The capability of determining the highly sensitive elements by means of modal strain analysis is theoretically demonstrated. Finite element models were constructed in numerical simulations. Firstly, the application of the proposed method is conducted on a central-massed flat plate which was topologically optimized by the Reference. The results of modal strain analysis at the first mode have good agreement with the results from the topology optimization. Furthermore, some features of the strain mode shapes (SMSs) of the flat plate are investigated. Finally, the SMSs are applied to the optimization of a stiffened plate. Attention is focused on the distributions of the SMSs of the stiffeners, which also shows good agreement with the results from the topology optimization in the previous study. Several higher orders of SMSs are extracted, which can visualize the most sensitive elements to the corresponding modal frequency. In summary, both the theory and simulations validate the correctness and convenience of applying SMSs to dynamic design of plate-like structures.", publisher = "Hindawi Ltd, London", journal = "Shock and Vibration", title = "Modal Strain Based Method for Dynamic Design of Plate-Like Structures", volume = "2016", doi = "10.1155/2016/2050627" }
Zhou, Y., Wu, S., Trišović, N., Fei, Q.,& Tan, Z.. (2016). Modal Strain Based Method for Dynamic Design of Plate-Like Structures. in Shock and Vibration Hindawi Ltd, London., 2016. https://doi.org/10.1155/2016/2050627
Zhou Y, Wu S, Trišović N, Fei Q, Tan Z. Modal Strain Based Method for Dynamic Design of Plate-Like Structures. in Shock and Vibration. 2016;2016. doi:10.1155/2016/2050627 .
Zhou, Yadong, Wu, Shaoqing, Trišović, Nataša, Fei, Qingguo, Tan, Zhiyong, "Modal Strain Based Method for Dynamic Design of Plate-Like Structures" in Shock and Vibration, 2016 (2016), https://doi.org/10.1155/2016/2050627 . .