液压传动课程中提升学生“压力能”理解的教学设计

摘要：液压传动利用液体压力能传递能量，有关压力能的理解，是授课的重点也是难点，为了让学生更好的理解压力能，本文设计一套有效的教学环节，使用动画导入，激发学生学习兴趣;结合实例推导结论，学生在例题中理解结论的由来;合理布置练习和思考题，给学生思考的空间，帮助学生全面深入理解液压系统中压力的传递。

Abstract： Hydraulic transmission uses liquid pressure to transfer energy. The understanding of pressure energy is the focus and difficulty of teaching. In order to let students better understand pressure energy， this article designs a set of effective teaching links. First， use animation import to stimulate students' interest in learning. Second， combine examples to derive conclusions. Students understand the origin of the conclusions in the examples. Third， arrange exercises and thinking questions reasonably to give students room for thinking. This can help students fully understand the pressure transmission in the hydraulic system.

关键词：液压传动;传递;压力能

Key words： hydraulic transmission;transmission;pressure energy

中图分类号：G64                                   文献标识码：A                                  文章編号：1674-957X（2021）23-0256-02

0  引言

液压传动是目前应用广泛的传动方式之一，它以液体为工作介质，利用液体压力能传递动力和进行控制。