Yet the additional information data used in the paper are obtained through calculation rather than direct measuring, which means necessary to solve a forced vibration problem of plate (direct problem) before load identification.

• 但本文所使用的附加信息数据事实上是通过计算而非测量得到的,因此在载荷反演之前需要解一个板的强迫振动问题(正问题)。