This brief discusses the possibility of making an object that precisely meets global structural requirements using additive manufacturing and feedback control. Experimental validation is presented by printing a cantilever beam with a prescribed stiffness requirement. The printing process is formalized as a model-based finite-horizon discrete control problem, where the control variables are the widths of the successive layers. Sensing is performed by making in situ intermediate stiffness measurements on the partially built part. The hypothesis that feedback control is effective in enabling the 3-D-printed beam to meet precise stiffness requirements is validated experimentally.

中文翻译：

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验证反馈控制以满足增材制造中的刚度要求

本简介讨论了使用增材制造和反馈控制来制造精确满足全局结构要求的物体的可能性。通过打印具有规定刚度要求的悬臂梁来进行实验验证。印刷过程被正式化为基于模型的有限水平离散控制问题，其中控制变量是连续层的宽度。感应是通过原位部分建造零件的中间刚度测量。通过实验验证了反馈控制有效地使3D打印的光束满足精确的刚度要求的假设。