平面连杆机构教学设计中的若干问题  

Several Issues in Planar Linkage Mechanism’s Instructional Design

作　　者：吴晨杰 何学军 胡杰华 郭晓君 WU Chen-jie;HE Xue-jun;HU Jie-hua;GUO Xiao-jun(Naval Logistics Academy of People’s Liberation Army of China,Tianjin 300450,China)

机构地区：[1]中国人民解放军海军勤务学院,天津300450

出　　处：《黑龙江生态工程职业学院学报》2022年第6期117-120,150,共5页Journal of Heilongjiang Vocational Institute of Ecological Engineering

基　　金：海军勤务学院教学成果立项培育项目“双课堂三层次教学法在比武竞赛活动中的应用与实践”(军训〔2019〕126号)。

摘　　要：针对机械基础课程中平面连杆机构的教学设计,将军事实例“骨骼化”,依据构建主义学习理论引入了铰链四杆机构的内容,展示了曲柄存在条件的推导过程,从两个角度论证了铰链四杆机构基本类型的判别方法,以分步动画和理论推导相结合的方式理顺了平面连杆机构的工作特性,从而摆脱过去生硬灌输知识难点的一般做法,加深学员的理解认识,使其具备将课堂内容延伸拓展的自主学习和创新思维能力。In view of the planar linkage mechanism’s instructional design in mechanical basis,military examples are“skeletonized”,revolute four-bar mechanism is introduced according to the constructivist learning theory,the derivation process of the crank existence condition is shown,the discrimination method of the basic types of revolute four-bar mechanism is demonstrated from two angles,and further the working characteristics of the planar linkage mechanism are straighten out by combining step-by-step animation and theoretical derivation.By getting rid of the general practice of blunt knowledge indoctrination in the past,students can acquire a better understanding of revolute four-bar mechanism,own the ability of independent learning and innovative thinking and thus extend course contents.

关 键 词：平面连杆机构 教学设计 基本类型判别 特性分析 

分 类 号：G642.0[文化科学—高等教育学]