Vibration characteristics of composite reinforced cylindrical shells sandwiched with co-cured damping films
In order to study the dynamic behavior of stiffened cylindrical shells with composite material sandwiched by co-cured damping films under the clamped boundary condition, the specimens of stiffened cylindrical shell with composite material sandwiched by co-cured damping films were prepared, and the d...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2025-05-01
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| Series: | Jixie qiangdu |
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| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2025.05.004 |
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| author | ZHOU Yuesong SUN Xingshuai LIANG Sen KONG Jiali ZHENG Minghui ZHENG Changsheng |
| author_facet | ZHOU Yuesong SUN Xingshuai LIANG Sen KONG Jiali ZHENG Minghui ZHENG Changsheng |
| author_sort | ZHOU Yuesong |
| collection | DOAJ |
| description | In order to study the dynamic behavior of stiffened cylindrical shells with composite material sandwiched by co-cured damping films under the clamped boundary condition, the specimens of stiffened cylindrical shell with composite material sandwiched by co-cured damping films were prepared, and the dynamic modal test platform was set up. The fundamental frequency, damping ratio and modal shapes of stiffened cylindrical shell specimens were solved, and the accuracy of finite element model was verified. The influence of geometric parameters on structural vibration characteristics was further discussed by the numerical simulation method. The results show that, the fundamental frequency, damping ratio and modal shape of the structure will change abruptly when the height of stiffeners changes, and there is a suitable height value before the abrupt change to make the whole structure consider both damping and stiffness requirements; when the thickness of composite materials is constant, the fundamental frequency of the whole structure decreases gradually and the damping ratio increases gradually with the increase of the damping thickness or damping layer number of single layer; for the stiffened cylindrical shell of single layer damping composite materials, the closer the damping layer is to the inner skin, the higher the stiffness is, and vice versa, the damping capacity is better. |
| format | Article |
| id | doaj-art-b81b22c20fda468a828a34d46231c7f4 |
| institution | DOAJ |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2025-05-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-b81b22c20fda468a828a34d46231c7f42025-08-20T03:08:21ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692025-05-01472937100921301Vibration characteristics of composite reinforced cylindrical shells sandwiched with co-cured damping filmsZHOU YuesongSUN XingshuaiLIANG SenKONG JialiZHENG MinghuiZHENG ChangshengIn order to study the dynamic behavior of stiffened cylindrical shells with composite material sandwiched by co-cured damping films under the clamped boundary condition, the specimens of stiffened cylindrical shell with composite material sandwiched by co-cured damping films were prepared, and the dynamic modal test platform was set up. The fundamental frequency, damping ratio and modal shapes of stiffened cylindrical shell specimens were solved, and the accuracy of finite element model was verified. The influence of geometric parameters on structural vibration characteristics was further discussed by the numerical simulation method. The results show that, the fundamental frequency, damping ratio and modal shape of the structure will change abruptly when the height of stiffeners changes, and there is a suitable height value before the abrupt change to make the whole structure consider both damping and stiffness requirements; when the thickness of composite materials is constant, the fundamental frequency of the whole structure decreases gradually and the damping ratio increases gradually with the increase of the damping thickness or damping layer number of single layer; for the stiffened cylindrical shell of single layer damping composite materials, the closer the damping layer is to the inner skin, the higher the stiffness is, and vice versa, the damping capacity is better.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2025.05.004Co-cured damping film embedded compositeReinforced cylindrical shellDynamic behaviorModal testNumerical simulation |
| spellingShingle | ZHOU Yuesong SUN Xingshuai LIANG Sen KONG Jiali ZHENG Minghui ZHENG Changsheng Vibration characteristics of composite reinforced cylindrical shells sandwiched with co-cured damping films Jixie qiangdu Co-cured damping film embedded composite Reinforced cylindrical shell Dynamic behavior Modal test Numerical simulation |
| title | Vibration characteristics of composite reinforced cylindrical shells sandwiched with co-cured damping films |
| title_full | Vibration characteristics of composite reinforced cylindrical shells sandwiched with co-cured damping films |
| title_fullStr | Vibration characteristics of composite reinforced cylindrical shells sandwiched with co-cured damping films |
| title_full_unstemmed | Vibration characteristics of composite reinforced cylindrical shells sandwiched with co-cured damping films |
| title_short | Vibration characteristics of composite reinforced cylindrical shells sandwiched with co-cured damping films |
| title_sort | vibration characteristics of composite reinforced cylindrical shells sandwiched with co cured damping films |
| topic | Co-cured damping film embedded composite Reinforced cylindrical shell Dynamic behavior Modal test Numerical simulation |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2025.05.004 |
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