全文总字数：8341字
1. 研究目的与意义（文献综述）
this design topic is the logo 308 rear suspension design, the logo 308 chassis uses the front mcpherson type independent suspension, the rear torsion beam type non-independent suspension. the engine is covered with a very complete protective plate, the middle of the chassis is coated with anti-corrosion coating, the insulation tile above the exhaust pipe is fully covered, all the way to the end of the muffler, insulation protection is very good.
the peugeot 308 front suspension adopts a mcpherson type independent suspension, the lower swing arm is stamped with a single layer of steel plate, and a separate spherical hinge which can be replaced separately is adopted. the h-shaped non-full frame subframe is connected with the body through bolts, on the whole, there are not many eye-catching structures or arrangements for the front suspension, and the materials are mainly steel and cast iron.
peugeot 308 rear suspension adopts torsion beam non-independent suspension, which has a simple structure and does not occupy too much car space, so it has become the most widely used rear suspension form of compact car. in the suspension arrangement, 308 ingenious position of the shock absorber as far down as possible, in order to free up more car space. the rear torsion beam suspension of mark 308 is designed with a spring tube separation type and a limit block is designed on the longitudinal thrust rod.
2. 研究的基本内容与方案
suspension is one of the important assemblies in modern automobile. it connects the frame (or body) with the axle (or wheel) flexibly, and can transmit load, mitigate impact, attenuate vibration and adjust the position of the body in the running of the car, etc. to ensure the ride comfort of the car.
the torsion beam non-independent suspension used in the logo 308 rear suspension has the advantages of simple structure and light weight, no rear wheel positioning is needed to reduce the assembly hours, the space occupied is small, and it is easy to obtain a large tail space.
the spring shock absorber system is convenient for matching arrangement; it is beneficial to control the motion ratio of the wheel relative to the spring vibration reduction; the torsional beam characteristics can replace the function of the stabilizing rod; during the suspension motion process, the front beam and the wheel distance change little; under the lateral force condition,
3. 研究计划与安排
| 周次(时间) | 工作内容 | 提交内容(阶段末) |
| 1-2（7 学期第19、20周） | 毕业设计动员、确定毕业设计选题、毕业设计任务书(相关参数)、校内资料收集 | 毕业设计任务书 |
| 3（8 学期第1周） | 方案构思、文献检索、完成开题报告 | 文献检索、开题报告 |
| 毕业实习两周（8学期第2-3周） | 校外实习、校外资料收集、完成实习报告 | 实习报告 |
| 4（8学期第4周） | 外文翻译、资料再收集 | 外文翻译 |
| 5~7（8学期第5~7周） | 设计计算、草图绘制 | 设计计算草稿、草图 |
| 第7周末 | 期中答辩 |
|
| 8~10（8学期第8~10周） | 图样绘制、编写设计计算说明书（论文）、预答辩 | 图样、论文初稿 |
| 11~13（8学期第11~13周） | 图样及设计计算说明书整理、资料袋整理，答辩资格审查 | 正式图样、论文 |
| 14（8学期第14周） | 学生提出答辩申请，并作答辩准备；教师审阅图纸、说明书 | 毕业设计资料袋 |
| 15~16（8学期15~16周） | 参加答辩、推荐省优 | 毕业设计成绩、省优毕业论文 |
4. 参考文献（12篇以上）
[1] 席文清. 后扭力梁悬架中纵臂的工艺方案【j】，汽车工艺师，2018.5
[2] 管欣、史建鹏、杨得军、詹军. 单纵臂式与扭力梁式悬架特性分析【j】,华中科技大学学报(自然科学版),2011.1
[3] 潘宁、魏道高、潘龙、陈浙伟. 某微型轿车后扭力梁式悬架k特性计算分析【j】，汽车科技，2014.4
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