The second chapter introduces the basic principle and the correlation knowledge of movingload identification, including mode shape orthogonality, mode superposition principle and so on.
第二章介绍了移动荷载识别的基本原理和相关知识，包括振型的正交性，模态叠加原理等。
2
We consider each sleeper as an abutment of opposite forces, rails on horizontal sleepers as a mock dispersed elastic ground beam model and trains as movingload on beams.
The influences of movingload on shear stress and bending moment are analysed by static characteristics, and the reliability of crane is studied with MonteCarlo method.