摘要：Gravity-1(YL-1) launch vehicle completed its maiden flight from the Yellow Sea near Haiyang City, Shandong Province, on January 11, 2024, this mission successfully launched three Yunyao satellites into their 500 km orbit. The YL-1 has a performance of 4.2 tons for 500 km sun-synchronous orbit and 6.5 tons for low Earth orbit. The success of YL-1 has further enriched China's launch vehicle spectrum, and will facilitate the launch of medium and large satellites and satellite constellations. In this paper, the flight ballistic solution of YL-1 is introduced. The flight trajectory consists of seven flight segments. The trajectory design comprehensively considered the characteristics and safety requirements of the vehicle to achieve effective utilization of the performance. Through comparative analysis of the flight trajectory and the predicted trajectory, the result confirmed that the flight trajectory was consistent with the design results, the design methodology was correct, and the flight test met the expected requirements. Subsequently, the vehicle will be employed for commercial application launch services.

摘要：In maxillofacial surgery, there is a significant need for the design and fabrication of porous scaffolds with customizable bionic structures and mechanical properties suitable for bone tissue engineering. In this paper, we characterize the porous Ti6Al4V implant, which is one of the most promising and attractive biomedical applications due to the similarity of its modulus to human bones. We describe the mechanical properties of this implant, which we suggest is capable of providing important biological functions for bone tissue regeneration. We characterize a novel bionic design and fabrication process for porous implants. A design concept of “reducing dimensions and designing layer by layer” was used to construct layered slice and rod-connected mesh structure (LSRCMS) implants. Porous LSRCMS implants with different parameters and porosities were fabricated by selective laser melting (SLM). Printed samples were evaluated by microstructure characterization, specific mechanical properties were analyzed by mechanical tests, and finite element analysis was used to digitally calculate the stress characteristics of the LSRCMS under loading forces. Our results show that the samples fabricated by SLM had good structure printing quality with reasonable pore sizes. The porosity, pore size, and strut thickness of manufactured samples ranged from (60.95± 0.27)% to (81.23±0.32)%,(480±28) to (685±31)μm, and (263±28) to (265±28)μm, respectively. The compression results show that the Young’s modulus and the yield strength ranged from (2.23±0.03) to (6.36±0.06) GPa and (21.36±0.42) to (122.85±3.85) MPa, respectively. We also show that the Young’s modulus and yield strength of the LSRCMS samples can be predicted by the Gibson-Ashby model. Further, we prove the structural stability of our novel design by finite element analysis. Our results illustrate that our novel SLM-fabricated porous Ti6Al4V scaffolds based on an LSRCMS are a promising material for bone implants, and are potential

摘要：中国传统艺术图案凝聚着本土璀璨的文化基因,是当代设计源源不断的艺术宝藏。青绿山水图案能表现出对生存环境的关注,以及对自然原生境界的倾心。文章以青绿山水图案为例,探讨传统艺术图案与当今室内空间设计相结合,以自然生态适宜的空间尺度、别致的材料肌理兼顾现代的审美趣味,通过外在物象的简化设计符号运用于室内空间来表达意境美,以期为室内设计提供一定借鉴。

摘要：敦煌艺术历经千年,留下了很多浩瀚、精美的彩绘图案,具有不可估量的审美价值,是东西方艺术交融的典范。文章以敦煌艺术的装饰图案为研究对象,与现代珠宝饰品展示设计相结合,拓展了敦煌图案在展示设计中的创新应用,体现了传统与时尚的交融,寻求具有民族审美价值与商业价值的珠宝饰品是展示设计未来的发展方向,以期为美化人们的社会生活献艺。

摘要：3D elastic-plastic FE model for simulating the force controlled stretch-bending process of double-cavity aluminum profile was established using hybrid explicit−implicit solvent *** the computational accuracy and efficiency,the optimal choices of numerical parameters and algorithms in FE modelling were *** formation mechanisms of cross-section distortion and springback were *** effects of pre-stretching,post-stretching,friction,and the addition of internal fillers on forming quality were *** results show that the stress state of profile in stretch-bending is uniaxial with only a circumferential *** stress distribution along the length direction of profile is non-uniform and the maximum tensile stress is located at a certain distance away from the center of *** aluminum profile is gradually attached to bending die,the distribution characteristic of cross-section distortion along the length direction of profile changes from V-shape to *** unloading the forming tools,cross-section distortion decreases obviously due to the stress relaxation,with a maximum distortion difference of 13%before and after *** pre-stretching and post-stretching forces increase,cross-section distortion increases gradually,while springback first decreases and then remains *** increasing friction between bending die and profile,cross-section distortion slightly decreases,while springback ***-section distortion decreases by 83%with adding PVC fillers into the cavities of profile,while springback increases by 192.2%.

摘要：司马相如以文章显汉世,研究者的关注多在辞赋,于政论文甚少论列。读相如有关武帝朝政治的议论文,其《喻巴蜀檄》的开边政略、《难蜀父老》对汉德的构想、《封禅文》于帝国新宗教的建立,均有着鲜明的时代意义与巨大的历史影响。由政论文旁涉于辞赋诸体,颂汉为相如一以贯之的思想,并通过汉武帝的“功业”营造“汉德”,是其当代性的言宣及其精神寄托。

摘要：刘勰《文心雕龙·时序》“赋乃漆园之义疏”一语,罕有解说,倘结合晋人注《庄》与辞赋创作,其中适性自然的人生观及逍遥义,正可视为其说的阐释。对比“柱下旨归”之于玄言诗,“漆园义疏”之于晋人赋,其体道词语、问答方式与铺陈描写,尤为相类,赋家以物态、景候、情志喻理,呈现出晋赋用《庄》的主要特征。而由晋代到唐代,赋家用《庄》例证极多,但前者乱世忧患的“逍遥”义与后者借用其“逍遥”词的创作迥异,则形成了《庄》学盛于赋史而衰于赋义的历史走向。

摘要：为了解决某转向节成形后存在填充不满、折叠、成形载荷太大以及表面成形质量差等缺陷,提出了基于克里金模型、多目标遗传算法和数值模拟技术相结合的优化策略。选取模具冲头斜度、冲头头部长羊角侧圆角半径、杆部与法兰盘连接处圆角半径3个参数作为设计变量,杆部末端欠填充距离和终锻最大成形载荷作为优化目标。首先,通过正交实验设计方法得到实验方案;其次,使用Deform-3D对每组实验进行数值模拟,得到设计变量与优化目标之间的响应数据;再次,使用克里金模型近似设计变量与优化目标之间的映射关系,并用多目标遗传算法对该近似模型进行全局寻优,获得前沿最优解集;最后,将优化的最优参数进行数值模拟和生产验证,模拟结果和生产结果证明了优化策略的有效性。采用最优模具参数能够得到成形效果良好的产品,且可将材料利用率从原来的75%提高至85%。

摘要：《庄子》以“三言”为方式,以“论道”为目的,而在体道的过程中,多以寓言加以呈现,其间使用了大量创造性的词语,在后世文学创作与批评文献中有着悠久的历史回响。在具体使用与书写间,庄子采取词语链的形态作递进式的体道认知,与文学创作构思颇为契合;而我们通过对其词语的诠释观测他对文道本论的构建,考量其对文学创作鉴赏理论的献益,尤其是喻理在像的书写给予文论的启示,均可获得新的意涵与省思。

摘要：目的对人工智能在设计领域的应用进行梳理与总结,分析当下人工智能对设计流程和设计师的影响,展望未来人工智能对设计行业的影响趋势。方法使用VOSviewer工具和文献计量法对Web of Science数据库中关于“人工智能在设计领域的创新与应用”的文献进行详细的可视化和聚类分析,深入探讨文献中的核心观点和案例。结果基于四个主要聚类(AI+技术应用、AI+设计流程、AI+创意协作、AI+影响反思)来展开讨论。特别关注生成式人工智能(AIGC)技术对设计方法和设计流程的影响,指出生成式人工智能在促进设计创新和提升设计效率方面发挥着至关重要的作用。此外,生成式人工智能对设计师的传统角色及设计原创性提出了新的挑战并重新定义需求。预测未来人工智能将进一步整合进设计流程,促进设计创新,更加关注人工智能的原创性、责任边界问题,探讨人工智能与设计师合作的新模式。结论通过对人工智能在设计领域应用的全面综述,为未来设计创新与人工智能融合提供了有价值的理论参考和发展方向。