Function-driven Design for Additive Manufacturing: A Novel Multi-Physics Topology Optimization Approach

10:20-10:50

【Profile】

Sebastian Bersch graduated from Zeppelin University, Germany, and WITS University, South Africa, majoring in Corporate Management & Economics.He joined IBS a Siemens Business right after his graduation and worked as project manager for manufacturing quality in the US for two years, before returning to Germany where he continued to work in defining and implementing quality solutions with Automotive OEMs and suppliers. After a couple of more years of implementation and project management experience Sebastian moved to China in the beginning of 2015 to become General Manger and CEO of IBS Shanghai. With the merger of IBS into Siemens he widened his focus by taking on the Lead Business Development position for manufacturing in APAC. He has since been involved with a number of projects to digitalize manufacturing and implement new production methods.Beyond that Sebastian serves at the Asia Pacific board of MESA, a global think tank for the improvement of business results and production operations in manufacturing companies by the application of information technology.

【Abstract】

Design for additive manufacturing is premised on the ability to reinvent the design space enabled by additive manufacturing for a realistic engineering problem. Such a task becomes increasingly challenging when design requirements in competing structural, thermal, and fluid domains are coupled, as often seen in energy, automotive, and aerospace applications. While topology optimization allows for the generation of free form designs, the existing topology optimization techniques largely reside in the structural domain and are insufficient to solve the said design problems. In this work, a multi-physics topology optimization framework is proposed to handle the coupling structural/thermal/flow requirements. The underlying strategies will be demonstrated with a successful gas turbine combustion component design. In this presentation, the potential of the new technology to open up the additive design space for the neighboring aerospace and automotive applications will be highlighted.

Development of 3D printer using cement-based material as ink

10:50-11:20

【Abstract】

Attempts to manufacture structures with 3D printers have been actively reported, especially overseas. Many of them use concrete and other cementitious materials, but these have problems such as the fact that it takes a certain amount of time to reach sufficient strength, and that they are strong in compression but weak in tension. Obayashi corporation has developed a technology to control the curing time of the ink, and a composite structure with special concrete that contains steel fiber and can bear the tensile strength. And in 2019 we built a 7 meter wide, 5 meter deep and 2.5 meter high shell-shaped bench, the largest of any 3D printer manufactured in Japan. This time, I will introduce the development process.

Application and expectation of 3D printing technology for lunar rover development

11:20-11:50