2018/4/27 Typical Material Usage on a Fighter Aircraft 园上清久通大学 Material Selection 国上茶大坐 Issues to consider when choosing materials Lower cost materials should be used while meeting performance requirements Materialcost,design and manufacturing cost,re-cycling cost,etc. -Commonality between materials used on different components to reduce the number of material types Methods to Reduce Cost 国上活大学 Future Trend 国上海天大峰 Use of Composite Materials ·More composite Intearated Product Teams (IPTs) -Lower manufacturing and maintenance cost Knowledge-Based Engineering(KBE) Health monitoring Embedding knowle into products and processes -Electronic monitoring of moisture,etc. Determinant Assembly Fber optic sensing Parts are"self-indexing" -Use of monolithic machined or integratedstructures Use of array of piezoelectric sensors -Laser beaming welding Load exceedance monitoring -Friction stir welding Smart airplanes Evolvement of design tools and process Probabilistic approach to address uncertainties Probabilistic Risk Assessment and Containment 圆上活文大坐 Tasks in design projects 国上清充大坐 旦 Flight envelope (V-n graph) Structural layout-fuselage,wing,empennage Material selection Weight and cost analysis (part of weight and cost estimation tasks) Shanghal Jao Tong Unive sy-Dt.Wentin Song ersy-Dr.Wentin Song chool at and ronas 72018/4/27 7 © Shanghai Jiao Tong University – Dr. Wenbin Song School of Aeronautics and Astronautics Typical Material Usage on a Fighter Aircraft © Shanghai Jiao Tong University – Dr. Wenbin Song School of Aeronautics and Astronautics Material Selection • Issues to consider when choosing materials – Lower cost materials should be used while meeting performance requirements • Material cost, design and manufacturing cost, re-cycling cost, etc. – Commonality between materials used on different components to reduce the number of material types © Shanghai Jiao Tong University – Dr. Wenbin Song School of Aeronautics and Astronautics Methods to Reduce Cost • Use of Composite Materials • Integrated Product Teams (IPTs) • Knowledge-Based Engineering (KBE) – Embedding knowledge into products and processes • Determinant Assembly – Parts are “self-indexing” – Use of monolithic machined or integrated structures – Laser beaming welding – Friction stir welding © Shanghai Jiao Tong University – Dr. Wenbin Song School of Aeronautics and Astronautics Future Trend • More composite – Lower manufacturing and maintenance cost • Health monitoring – Electronic monitoring of moisture, etc. – Fiber optic sensing – Use of array of piezoelectric sensors – Load exceedance monitoring – Smart airplanes • Evolvement of design tools and process • Probabilistic approach to address uncertainties 40 © Shanghai Jiao Tong University – Dr. Wenbin Song School of Aeronautics and Astronautics Probabilistic Risk Assessment and Containment 41 © Shanghai Jiao Tong University – Dr. Wenbin Song School of Aeronautics and Astronautics Tasks in design projects • Flight envelope (V-n graph) • Structural layout – fuselage, wing, empennage • Material selection • Weight and cost analysis (part of weight and cost estimation tasks)