1. 研究目的与意义（文献综述）

the main topic of this graduation project is the design of automobile drum brakes and their operating mechanisms. through the knowledge of the front wheel brakes of heavy trucks, combined with specific documents and topics, the current design was determined through the search for chinese and foreign literature and offline factory internships.the task of this design was determined, namely the design of the automobile drum brake and its operating mechanism.

design significance:(设计目的)

2. 研究的基本内容与方案

the main problems to solve the research:（主要研究解决问题）

1. be familiar with the principle and construction of drum brakes;

2. analysis of the brake mechanism to determine the parameters;

3. 研究计划与安排

1~2 (19th and 20th weeks of the 7th semester): determine graduation design topics, graduation design assignments (related parameters), and collection of information on campus

3 (1st week of 8 semesters): plan conception, literature search, completion report

(2-3 weeks of 8th semester): off-campus internship, off-campus data collection, completion of internship report

4. 参考文献（12篇以上）

[1]. 王望予主编.汽车设计(第4版).机械工业出版社，2003

[2]. （美）埃克霍恩 克林恩乔克. 汽车制动系统.机械工业出版社.1998

[3]. 余志生. 汽车理论. 机械工业出版社.2009