Zobrazeno 1 - 10
of 29
pro vyhledávání: '"优化设计"'
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 42, Iss 5, Pp 818-827 (2024)
Aiming at the problems such as low structural bearing efficiency, structural weight gain, heavy load and cabin noise caused by high rear backbraced engine in BWB layout, based on novel materials and pultruded rod stitched efficient unitized structure
Externí odkaz:
https://doaj.org/article/4319277a34a346e8b0160b0151e8a01b
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 42, Iss 1, Pp 108-116 (2024)
Because the upper-stage separation of a lifting-body rocket is difficult under the low-altitude and high-speed flight environments, an upper-stage separation scheme based on the separation spring is proposed. The integration of ADAMS and MATLAB reali
Externí odkaz:
https://doaj.org/article/454d47bfd38944afb90ece1dc566c2e9
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 41, Iss 2, Pp 241-252 (2023)
Considering the drag-divergence performance as a constraint, this paper presents a multi-point aero-structural design optimization of wings on a wing-body-tail-engine configuration of long-range dual-aisle civil aircraft by using a gradient-based met
Externí odkaz:
https://doaj.org/article/5d176866c4ef468d91c4be7704f3da17
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 41, Iss 1, Pp 216-221 (2023)
Turbulence intensity in test section is an important index to evaluate the flow-field performance of wind tunnel, and provide guarantee for model's dynamics and accurate test. The prediction model should be established to evaluate the effect of recti
Externí odkaz:
https://doaj.org/article/bdc3b56c8ebb4b6788a0d391acda1e77
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 40, Iss 3, Pp 512-523 (2022)
Based on the application requirements of a small hand-launched solar-powered unmanned aerial vehicle (UAV) in flying wing configuration, the optimization design of the low Reynolds number (LRN) reflexed airfoil is carried out in this study to meet se
Externí odkaz:
https://doaj.org/article/8d89d94f46244ad18c5388a013802532
Publikováno v:
Xibei Gongye Daxue Xuebao, Vol 40, Iss 3, Pp 493-503 (2022)
The particle swarm optimization (PSO) algorithm is easy to implement and can obtain high-quality solutions to optimization problems. It is widely applied to nonlinear and difficult problems such as aerodynamic optimization. However, to solve multi-mo
Externí odkaz:
https://doaj.org/article/b7ab8042e3a04b628474042d2111ef42
Publikováno v:
Guangtongxin yanjiu, Vol , Pp 37-41 (2019)
为了提高外腔可调谐激光器热调谐标准具表面温度的均匀性,文章采用仿真分析的方法得到热调谐标准具表面温度分布特点,提出了优化热调谐标准具加热电极的解决方案,以实现热调谐标准具
Externí odkaz:
https://doaj.org/article/eb0f4ec787a54cdc8f13a9979c0faf0d
Publikováno v:
Jianzhu Gangjiegou Jinzhan, Pp 87-96 (2018)
选取几何法及撑杆控制面积法确定环索预应力比,选取支座径向位移相等准则及网壳顶点竖向位移相等准则确定环索预应力幅值,将它们进行交叉组合构成4个环索预应力设计方案。另外还选取
Externí odkaz:
https://doaj.org/article/74cd60d024684a5cb4ecbbe03835893f
Publikováno v:
Jianzhu Gangjiegou Jinzhan, Pp 63-69 (2017)
江苏大剧院由一个大型公共平台和4个大小各异、错落布置的观演大厅组成,表现了"荷叶·水珠"的独特建筑效果。4个观演大厅外观类似椭球形,顶部呈内凹形态,采用单层空间网格结构构成钢屋
Externí odkaz:
https://doaj.org/article/f8972747b9804980942c981ea4907ca1
Publikováno v:
Guangtongxin yanjiu, Vol , Pp 1-4 (2016)
针对承载IP业务的弹性光网络,建立了成本优化模型,提出了两种路径分割方案:自适应路径分割和启发式路径分割,并研究了采用这两种方案来承载业务时的弹性光网络建设成本。自适应路径分
Externí odkaz:
https://doaj.org/article/dc307dbbb3fc472fbdf9ddb09116ec18