2013 年 78 巻 690 号 p. 1385-1394
At a structure damaged, damage locations will be concentrated on structural weak points or points on severe loading condition. They will not be distributed homogeneously. So, local parameter estimation is important for structural health monitoring. In order to estimate local parameter simply, we have studied wave travel time in one-dimensional multi mass system. This paper presents a theory of wave propagation and a possibility for local parameter estimation by detecting wave travel time of one-dimensional multi mass system.