机械原理课件.pptx

機械原理 Theory of Machines and Mechanisms ;Today’s Topics;Mechanism Machine;The Content of our course;The Content of our course;Example of the Machines and Mechanisms;Methods of Learning; Course information and requirements (1);Information;Homework Quizzes;Discussion Session;Grading;The Textbook;Reference Books;Reference Books of Invention;Reference Books for Further Study;To be an engineer;Engineer’s Task;Becoming a Good Designer ;“Why I Became Interested in Design”;Types of Design;The Design Process is as Important as your Ideas and Analysis;Problem Definition;Problem Definition;A few problems to ask you;The Object to be investigated;The Object to be investigated;The Object to be investigated;The Object to be investigated;Is there any common characteristics of different machines?;;;;;;;;;;;;A Brief Review of the Machine History;Retrospect of the mechanical engineering history;Retrospect of the machine history;Retrospect of the machine history;Retrospect of the machine history;Retrospect of the machine history;Retrospect of the machine history;Retrospect of the machine history;Retrospect of the machine history;Retrospect of the machine history;Retrospect of the machine history;Conclusion: The Fundamentals of machine design theory grows up with the development of machine industry. It helps us to analyse machines and design new devices. 溫詩鑄，黎明主編《機械學發展戰略研究》;Recommended Topic for Research;Recommended Topic for Research;Attention and Requirement;Chap.2 Kinematics fundamental;2.1 Basic Concepts of Mechanisms;Degree of Freedom（自由度）; Link（構件）:is a rigid body which possesses at lease two nodes which are points for attachment to other links.;Joint: is a connection between two or more links(at their nodes), which allows some motion, or potential motion, between the connected links. Joints (also called kinematic pairs) can be classified in several ways: By the type of contact between the elements, line, point, or surface. By the number of degree of fr