新能源汽车盘式制动器设计(英文版)(含CAD图)

新能源汽车盘式制动器设计(英文版)(含CAD图)(任务书,开题报告,外文翻译,文献摘要,论文说明书英文版14000字,CAD图3张)
Summary
The automobile brake system plays an important role in ensuring the safety of the vehicle, the reliability of the parking and the economic benefits of transportation. With the rapid development of the expressway, the increase of the speed and the increasing traffic density, the brake system of the automobile Work reliability is becoming increasingly important, so many brake regulations place many detailed and specific requirements on the brake system. The stable braking performance of the disc brakes has gradually replaced the drum brakes. Therefore, it is important to design a disc brake that is stable and safe and reliable. With the increase in the level of highways, the rise in the number of passengers, especially the enforcement of national safety regulations, the use of disc brakes in the front and rear wheels will be a trend. In this design, reference is made to the design concepts of some foreign advanced disc brakes. Through the analysis of the main parameters of the brake system, it is determined as the floating caliper disc brake, and the structural analysis and design calculation are carried out, and the assembly drawing of the front wheel brake and the parts drawing of the brake disc are drawn, and the relevant evaluation indexes are also complete. meets the. The final design of the brakes basically achieved the desired goal.
Keywords: disc brake； parameter design；performance；check
 

Contents
ChapterⅠIntroduction    1
1.1 The meaning of brake design    1
1.2 Brake development history    1
1.3 Application of domestic disc brakes    2
1.4 Application of foreign disc brakes    5
1.5 Current development status of brakes    7
Chapter II Structure and Design Principles of Brakes    17
2.1 Automotive brake system function and classification    17
2.2 Classification and introduction of disc brakes    17
2.3 Disc brake structure and working principle    20
2.4 General principles of brake design    21
2.4.1 Brake performance    21
2.4.2 Brake performance stability    22
2.4.3 Brake clearance adjustment simplicity    22
2.4.4 Brake size and quality    23
2.4.5 Noise reduction    23
Chapter III Brake Design    24
3.1Design Parameters    24
The original parameters of this design refer to the design specification.    24
3.2 Main components of disc brakes    24
3.2.1 Brake disc    24
(2) Brake disc thickness h    26
3.2.2 Brake block    28
3.2.3 Brake caliper    28
3.2.4 Pad alarm device design    29
3.2.5 Friction material    30
3.2.6 Brake clearance and adjustment    30
3.3  Brake force distribution analysis    31
3.4 Selection of synchronization adhesion coefficient    32
3.5 Brake performance factor    33
3.6 Brake braking torque calculation    34
3.7 Brake system performance requirements    34
3.7.1 Requirements for directional stability of the car during braking    35
3.7.2 Brake deceleration j requirement    36
3.7.3 Braking distance S requirements    36
3.7.4 Brake torque requirements    37
3.7.5 Specific energy dissipation rate requirements for wheel brakes    37
3.7.6 Comparison of friction requirements    37
3.7.7 Requirements for heat flux density    37
3.7.8 Requirements for the absorption power of the pad    37
3.7.9 Average friction requirements    37
3.7.10 The service brake has at least two independent drive lines    37
3.7.11 Prevent water and sludge from entering the brake working surface    38
3.7.12 Requires good thermal stability of braking capability    38
3.7.13 Lightweight operation    39
3.7.14 Calculation of pedal force during emergency braking    39
3.7.15 Brake pedal travel calculation    39
3.7.16 Subsidiary calculation    40
3．8 Friction lining wear characteristics    40
4.1Brake heat capacity and temperature rise accounting    43
4.2 Brake commissioning    44
4.2.1Technical requirements for brake discs    44
4.2.2 Brake caliper technology assembly requirements    44
4.2.3 Hub assembly technical requirements    45
Conclusion    47
References    48