e-Palette移动平台前悬架系统设计开题报告

1. 研究目的与意义（文献综述）

1.1domestic and foreign research on suspension

suspension is the general name of all force-transmitting connection devices between the frame and the axle or wheel. its function is to transmit the force and moment acting between the wheel and the frame, cushion the impact transmitted from the uneven road to the frame or body and attenuate the resulting vibration to ensure that the car can ride smoothly ^[1].

its function is to transmit the vertical reaction force, vertical reaction force and lateral reaction force acting on the wheels to the vehicle frame to ensure the normal driving of the car. suspension design is an important factor that affects vehicle handling stability and ride comfort. suspensions of modern cars have various structural forms. the performance of the double wishbone independent suspension is related to the handling stability, steering portability, and tire life of the car. the common double wishbone independent suspension is a set of spatial rssr four-link mechanisms, which have a complex motion relationship and intuitive movement. poor performance makes it difficult to perform performance analysis.

2. 研究的基本内容与方案

2.1 subject sources and requirements

when designing, first consider the overall plan requirements of the modified car, and design the suspension structure layout based on the overall space structure of the car and the unique characteristics of the e-palette mobile platform. then, according to the overall plan of the suspension, the design and calculation of each component of the suspension system are carried out. in the calculation, the components that have a greater impact on the overall performance of the suspension, such as coil springs, control arms, shock absorbers, etc. determine the position of the hard points, analyze the k / c characteristics of the suspension arrangement using adams / car software, and try to make the adams / insight module optimize parameters with unreasonable changes in kinematics and dynamics; use two-dimensional software make mechanical drawings and use 3d software for modeling.finally, the suspension cross arm is checked for strength.

2.2 the main content of the study

3. 研究计划与安排

week 1 schedule, make up the plan, finish literature search, complete opening report

week 2-3 translate foreign literature ,collect data again

week 4 preliminary selection of general layout parameters, selection of independent suspension form

4. 参考文献（12篇以上）

[1]王霄锋。汽车悬架和转向系统设计[m]。北京：清华大学出版社，2015.

[2]彭莫，刁增祥，党潇正。汽车悬架构件的设计计算[m]。2版。北京：机械工业出版社，2016.

[3]曹洋,苍衍。电动汽车底盘技术的颠覆式创新[j].汽车文摘，2019（12）：13-19.