1. 研究目的与意义（文献综述）

1.objective and significance (including the analysis of the research status at home and abroad)

with the rapid growth of china's passenger car market, the domestic passenger car stock is huge. at the same time, in order to meet the requirements of low-end market and fully develop the product line, despite the prevailing market situation of auto-transmission models, the traditional manual-transmission products are still indispensable.

therefore, the type of clutch that manual transmission should match must also be the traditional mechanical clutch. in addition, due to the rapid development of the information age, the dependence on electronic components will be increasingly high in the future. under some special conditions, in order to ensure the normal operation of the car, when the electronic components cannot work properly, the mechanical mechanism is the last guarantee, which also shows the necessity of research on mechanical clutch.

2. 研究的基本内容与方案

2. basic contents, objectives, technical schemes and measures to be adopted in the research (design)

2.1 this paper focuses on the designed and optimization of the clutch for dongfeng nissan's compact car, trent. the proposed clutch type is a diaphragm spring clutch. the aim is to optimize the operating

characteristics of the clutch.

3. 研究计划与安排

3. scedule

phase 1 (20th week of the 7th semester): confirm graduation project title, graduation design task book (related parameters), and collection of school materials.

4. 参考文献（12篇以上）

4． read more than 15 references (including over 3 foreign documents in the past five years)

1. hu jing, 2008.4. design and research on the clutch diaphragm spring of jetta car.[d], 2008.4, changchun university of technology.

2. wang dashuang, 2011.5. modeling and simulation analysis of clutch [d], 2011.5. wuhan university of technology

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