Demonstration apparatus for triangular component force bearing analysis

Abstract

The invention discloses a triangular member force analysis demonstration device. The device is a demonstration device in the teaching of engineering mechanics in vocational technical secondary school, in particular a force analysis demonstration device of a triangular member in statics. In the past, the teacher explains the contents about the force acting on the triangular member with temporarily-drawn figures, the students feel inexplicit about the contents during listening and watching and are difficult to understand what are acting force and reacting force and what is balance force. Especially in concurrent force system, students are confused about the forces acting on the researched object and the directions of the forces. In the invention, the action point B (the position of a pin), a pole AB, a pole CB and the object are respectively equipped with a lightening part, an arrow indicating the direction of the force and a switch. The invention shows the situation of the forces acting on the concurrent force system action points of the triangular member visually, vividly and accurately using the methods of light display and arrow expression. The device has the advantages of simple structure, easy production, low cost, convenient operation, direct-viewing demonstration, etc.

Description

technical field [0001] The invention relates to a demonstration device in the teaching of "Engineering Mechanics" in a vocational technical secondary school, in particular to a demonstration device for analyzing the force situation of triangular components in statics. Background technique [0002] When explaining the theory of "Engineering Mechanics", first of all, students should have a deep understanding of the basic nature of force, understand and understand the axioms of statics, and understand and master the force analysis of objects, and draw force diagrams; in this teaching process It is very important to explain and demonstrate the force analysis of triangular components. In the past, when explaining and demonstrating this course, teachers could only temporarily draw pictures and explain to students the nature of several forces and the relationship between the interactions of several forces. Looking at the picture always feels very abstract, and it is not easy to und...

AI Technical Summary

Problems solved by technology

[0002] When explaining the theory of "Engineering Mechanics", first of all, students should have a deep understanding of the basic nature of force, understand and understand the axioms of statics, and understand and master the force analysis of objects, and draw force diagrams; in this teaching process It is very important to explain and demonstrate the force analysis of triangular components. In the past, when explaining and demonstrating this course, teachers could only temporarily draw pictures and explain to students the nature of several forces and the relationship between the interactions of several forces. Looking at the picture always feels very abstract, and it is not easy to understand what is action force and reaction force? What is Balance? In particular, what kinds of forces are the objects under study in the converging force system? What is the direction of these forces? Students are often ambiguous and lack an intuitive teaching aid

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