In order to obtain the desired final shape, the blade precision forging requires a reasonable preformed billet which can be obtained from a given final shape by using backward tracing scheme based on FEM. The key tech...In order to obtain the desired final shape, the blade precision forging requires a reasonable preformed billet which can be obtained from a given final shape by using backward tracing scheme based on FEM. The key technologies of backward tracing scheme based on 3D rigid-viscoplastic FEM were explored, and some valid algorithms or methods were proposed. A velocity field was generated by combining the direct iterative method with Newton-Raphson iterative method, and then the initial velocity field of backward tracing simulation was achieved by reversing the direction of the velocity field. A new method, namely the tracking-fitting-revising method, was proposed and can be used to determinate the criterion of separating a node from die in the backward tracing simulation. The ceasing criterion of the backward tracing simulation is that all the boundary nodes are detached from dies. Based on the above key technologies, the 3D backward tracing simulation system for the blade precision forging was developed, and its feasibility and reliability were verified by forward loading simulation.展开更多
This study explores the lasting relevance of Confucian filial piety in Chinese culture that promotes individual self-cultivation, family harmony, and social stability. The Understanding by Design (UbD) framework is pr...This study explores the lasting relevance of Confucian filial piety in Chinese culture that promotes individual self-cultivation, family harmony, and social stability. The Understanding by Design (UbD) framework is proposed as an effective approach for teaching Confucius’ wisdom and the reinforcement of the cognitive, affective and psychomotor learning outcomes. This approach emphasizes “backward design” which prioritizes meaningful understanding over memorization. Integrating filial piety into the UbD framework enhances students’ understanding of its philosophical foundations and modern significance, while also strengthening their intercultural communication skills. The study concludes that UbD approach develops language skills and cultural sensitivity, encouraging insights into the dynamic nature of cultural values. The meaningful outcomes through integrating the approach into filial piety curriculum design can support students’ development of self-awareness, empathy, and ethical maturity, which foster values essential for ethical leadership and community-oriented responsibilities.展开更多
基金Project(50225518) supported by the National Science Foundation of China for Distinguished Young Scholars Project(02H53061) supported by the Aeronautical Science Foundation of China Project(05-1) supported by the Foundation of State Key Laboratory of Plastic Forming Simulation and Mould Technology
文摘In order to obtain the desired final shape, the blade precision forging requires a reasonable preformed billet which can be obtained from a given final shape by using backward tracing scheme based on FEM. The key technologies of backward tracing scheme based on 3D rigid-viscoplastic FEM were explored, and some valid algorithms or methods were proposed. A velocity field was generated by combining the direct iterative method with Newton-Raphson iterative method, and then the initial velocity field of backward tracing simulation was achieved by reversing the direction of the velocity field. A new method, namely the tracking-fitting-revising method, was proposed and can be used to determinate the criterion of separating a node from die in the backward tracing simulation. The ceasing criterion of the backward tracing simulation is that all the boundary nodes are detached from dies. Based on the above key technologies, the 3D backward tracing simulation system for the blade precision forging was developed, and its feasibility and reliability were verified by forward loading simulation.
基金funded by Project: 2022 Guangdong Provincial Higher Education Teaching Quality and Reform Project--Research and Practice of English Teaching Integrating Ideological and Political Education into the “Introduction of Chinese Culture” Course based on UbD Theory.
文摘This study explores the lasting relevance of Confucian filial piety in Chinese culture that promotes individual self-cultivation, family harmony, and social stability. The Understanding by Design (UbD) framework is proposed as an effective approach for teaching Confucius’ wisdom and the reinforcement of the cognitive, affective and psychomotor learning outcomes. This approach emphasizes “backward design” which prioritizes meaningful understanding over memorization. Integrating filial piety into the UbD framework enhances students’ understanding of its philosophical foundations and modern significance, while also strengthening their intercultural communication skills. The study concludes that UbD approach develops language skills and cultural sensitivity, encouraging insights into the dynamic nature of cultural values. The meaningful outcomes through integrating the approach into filial piety curriculum design can support students’ development of self-awareness, empathy, and ethical maturity, which foster values essential for ethical leadership and community-oriented responsibilities.
