Development of Experimental Teaching Apparatus for Structural Mechanics Displacement Method and Teaching Practice
The basic principle of displacement method is the difficulty and emphasis of structural mechanics.The primary system constructed by this method is highly abstract.The student is generally difficult to master it.Combining theoretical teaching with experimental teaching,the teaching demonstration device and experimental device of the basic principle of displacement method are developed.The"clamp"that is created out of nothing in the primary system is displayed in the form of solid parts,and the"relaxation"and"locking"effects of the"clamp"are reproduced.The basic principle of displacement method is expounded from the qualitative analysis of the demonstration device and the quantitative calculation of the experimental device.By using these two devices,the deformation process of the original structure and its primary system can be reproduced in the displacement method.Students can see the"structure",observe its deformation,and visualize the"fundamental system"and its two states under external loads and node displacements.This helps to visualize and make the abstract displacement method more intuitive.
NETL
NSTL
万方数据
维普
