采用多目标、多约束的优化方法，以悬臂施工主梁的斜拉桥为例，建立了施工阶段的优化模型，并给出算例。
Based on the cable-stayed bridge using method of cantilever, the paper establishes the optimization model of construction phase with multi-objective and multi-constraint and gives the example.
针对R-C系统的特点，考虑轴外渐晕的影响，推导出主、次镜内遮光罩尺寸设计的约束公式。
The constraint formulas for designing the geometries of primary baffle and secondary baffle are deduced when taking account of vignette of R-C system.
每个约束子结构的运动，由保留的自由界面主模态和剩余惯性释放附着模态表出。
The motion of each constrained substructure is represented by the free-interface normal modes that is kept and by the residual inertia relief attachment mo-des.
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