CAI作为一种先进的教学手段,正逐步渗透到各类学校的各个学科,使得教学内容和形式发生了重大的变化。《机械原理》课程作为机械类专业的一门主干技术基础课,在培养学生综合设计能力的全局中,承担培养学生机械系统方案创新设计能力的任务,在机械设计系列课程体系中占有十分重要的地位。随着计算机技术的飞速发展以及计算机的日益普及,在近二十几年内机械原理学科有了很大发展。在机构设计和分析中已广泛地使用着解析法和采用计算机辅助设计(CAD)方法,这些发展和要求也必然会逐渐反映到《机械原理》教学中来。另一方面,《机械原理》是一门具有较强理论性和系统性的课程,由于该课程涉及大量的概念、定义、作图、算法等,较为抽象和深奥,采用传统的“黑板+粉笔”单调教学模式,效果往往不佳。因此,在 As an advanced teaching method, CAI is gradually penetrating into various disciplines in all kinds of schools, causing great changes in the content and form of teaching. As a basic course of mechanics major, “Mechanical Principle” course takes the task of training students ’capability of innovative design of mechanical system scheme in the overall situation of cultivating students’ overall design ability, and occupies a very important position in the mechanical design series of course system . With the rapid development of computer technology and the increasing popularity of computers, the discipline of mechanical principles has undergone great development in recent twenty years. Analytical methods and computer-aided design (CAD) methods are widely used in organizational design and analysis. These developments and requirements are also bound to be gradually reflected in the teaching of “mechanical principles.” On the other hand, “Mechanical Theory” is a relatively theoretical and systematic course. Due to the large number of concepts, definitions, drawings, algorithms and so on, this course is more abstract and esoteric. The traditional “Blackboard + Chalk ”monotonous teaching mode, the effect is often poor. Thus, in