Structure Optimization of Solid Rocket Engine Vacuum Pouring Cylinder Cover based on Response Surface

Cui Zhaoxia,Wang Wenwen,Li Shuaida,Zhu Yunjie,Yang Tao, ,Zhou Yu

Table 4 BBD test design data

NO. t/mm H/mm L/mm Equivalent stress σ/MPa Maximum shear stress τ/MPa Deformation δ/MPa Mass M/kg 1 15.00 350.00 800.00 428.72 223.62 2.33 4926.72 2 20.00 300.00 800.00 350.50 183.81 2.27 5034.31 3 20.00 250.00 850.00 366.93 192.52 2.83 4918.28 4 20.00 250.00 750.00 392.67 207.21 2.76 4924.23 5 15.00 250.00 800.00 412.54 216.90 3.33 4758.52 6 20.00 300.00 800.00 350.50 183.81 2.27 5034.31 7 20.00 350.00 850.00 360.19 187.32 2.00 5141.40 8 20.00 300.00 800.00 350.50 183.81 2.27 5034.31 9 20.00 300.00 800.00 350.50 183.81 2.27 5034.31 10 15.00 300.00 850.00 414.26 217.48 2.96 4842.98 11 25.00 350.00 800.00 291.45 150.57 1.74 5360.22 12 25.00 300.00 750.00 312.69 162.86 1.96 5230.24 13 20.00 300.00 800.00 350.50 183.81 2.27 5034.31 14 15.00 300.00 750.00 442.14 233.35 2.65 4848.41 15 20.00 350.00 750.00 364.75 189.70 2.06 5149.90 16 25.00 300.00 850.00 303.64 159.36 2.01 5221.21 17 25.00 250.00 800.00 275.15 141.08 2.45 5081.00