Free vibration, dynamic stability and aero/thermoelastic responses of graphene platelets reinforced quasi-2D hyperbolic refined high-order curved pipe
Free vibration, dynamic stability and aero/thermoelastic responses of graphene platelets reinforced quasi-2D hyperbolic refined high-order curved pipe
复制标题
石墨烯片增强准二维双曲精制高阶弯管的自由振动、动态稳定性和气动/热弹性响应
DOI：
10.1080/17455030.2022.2155328
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发表时间：
2022-12
影响因子：
--
通讯作者：
Wenhao Hu
中科院分区：
文献类型：
--
作者：
Yanan Gao;Peng Zhang;Taoping Ye;Ke Ma;Menghao Zhai;Wenhao Hu
在这项工作中，研究了由石墨烯纳米片增强复合材料制成的弯曲管道在超音速气流和热载荷作用下的动力学响应。利用传热学连续方程得到了热环境条件。采用准二维双曲精化高阶剪切变形理论提取方程，然后用广义微分求积法求解。利用其他文献的结果和COMSOL多物理软件的结果对结果进行了验证。研究了GPLRC倾斜曲管在超音速气流作用下的偏航角、动水压力、几何特性、马赫数和温度变化对其振动特性的影响。一个令人惊讶的结果是，气动压力对与系统相关的气流稳定性的影响与偏航角的值有显着的依赖关系。未来分析的另一个令人惊讶的结果是，增加气动压力不仅可以扩大稳定区域，而且在较高的马赫数时会出现颤振现象。
In this work, dynamics response associated with a curved pipe which is made of reinforced composite material via graphene nanoplatelets—GPLs—subjected to a supersonic airflow as well as thermal loading is examined. The thermal environment conditions are obtained using heat-transfer continuum equations. Quasi-2D hyperbolic refined high-order shear deformation theory is employed to extract the formulations, and then these formulations are solved through Generalized Differential Quadrature Method (GDQM). The results are verified by using results from other papers along with results extracted from COMSOL multi-physics software. The influence of yaw angle, hydrodynamic pressure, geometry properties, Mach number, and temperature change of the current structure on the vibrational behavior of the GPLRC tilted curved pipe subjected to supersonic airflow was studied. One of the amazing results is that the influence of aerodynamic pressure on the airflow stability related to the system has a remarkable dependency on the value of yaw angle. Another amazing outcome for future analysis is that not only increasing the aerodynamic pressure could expand the stability area but also flutter phenomena happen at the higher value of Mach number.
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