Optimal layout about wing amp; amp; fuselage on bi - fuselage aircraft with high aspect ratio straight wing 大展弦比联接翼结构重量估算
The optimization results show that the weight of the frame can be greatly reduced by adjusting the cross - sectional areas of its components , while satisfying the constraints 优化结果表明,在满足一定性能约束条件下,通过调整构件的截面尺寸,可以有效地降低结构重量。
Spacial frame is a shape used commonly in engineering . its structure mechanics performance can be improved greatly and its weight can be lightened by use of shape optimization too 空间刚架结构是工程上常用的结构形式,根据刚架结构的构建特点进行形状优化可以极大地改善结构的力学性能,减轻其结构重量。
Ejectorjet is the alternative power of rbcc during low - speed operation . the utilization of ejectorjet will be important for structural integration , and will decrease weight and complexity of the engine 引射火箭模态用于rbcc发动机起飞低速阶段,对于实现rbcc结构一体化、减轻结构重量和系统复杂度具有重要的意义。
Rocket ejector is the alternative power of rbcc during low - speed operation . the utilization of rocket ejector will be important for structural integration , and will decrease weight and complexity of the motor 引射火箭模态作为rbcc推进方案低速阶段的起飞动力,对于实现rbcc结构一体化、减轻结构重量和系统复杂度具有重要的意义。