新能源车型(奇瑞eQ1)前制动器设计(英文版)(含CAD图,CATIA三维图)

新能源车型(奇瑞eQ1)前制动器设计(英文版)(含CAD图,CATIA三维图)(任务书,开题报告,外文翻译,文献摘要,论文说明书英文版10000字,CAD图5张,CATIA三维图)
Front brake design for a new energy car (referring to CHERY eQ1)
Abstract
This paper introduces the classification of disc brakes and the advantages and disadvantages of various disc brakes, and it also selects the design schemes of the Chery eQ1’s front brake, then designs and calculates its basic parameters (such as the front and rear braking force distribution coefficient, the synchronous adhesion coefficient, the adhesion utilization, braking efficiency etc.) After that, these basic parameters are used to design and check the dimensions of the main brake components, such as brake discs and brake pads. The materials of these components are also selected according to the demands and requirements. In addition, the designed front brake of Chery eQ1 are modeled in 3D by using CATIA software, and the simulation analysis was carried out using the finite element software ANSYS. In that way is the performance of the front brake’s main component vividly analyzed, which can verify the reliability of the brake’s working.
Key Words：Disc brake; CATIA; 3D model; ANSYS; Finite element analysis 
 

Contents
Chapter 1 Introduction    1
1.1 Function of brake    1
1.2 Different types of brake devices    1
1.3 The components of brake    1
1.4 New developments for brake    2
1.5 Requirements for brake    3
1.6 Tasks of the design    4
1.7 Design Schema    5
Chapter 2 Selection of brake’s structure    6
2.1 Basis for brake structure selection    6
2.2 Wheel brake’s type    6
2.3 Comparison between drum and disc type    6
2.4 Structure of disc brake and it’s selection    8
2.5 Structure decision for Chery eQ1’s front brake    11
Chapter 3 Design and selection of the brake’s main parameters    13
3.1 Basic parameters of Chery eQ1    13
3.1.1 Wheel rolling radius    14
3.1.2 Centroid height    14
3.2 Braking force and braking force distribution coefficient    14
3.3 Calculation of the synchronous adhesion coefficient    17
3.4 Maximum braking torque    19
3.5 Adhesion utilization coefficient and braking efficiency    22
3.5.1 Adhesion utilization    22
3.5.2 Braking efficiency  ,      24
3.6 Brake performance check    25
Chapter 4 Design, calculation and check of the brake’s main parts    26
4.1 Determination of brake disc’s main parameters    26
4.1.1 Brake disc diameter      26
4.1.2 Brake disc thickness      26
4.2 Determination of main parameters of friction pad    27
4.2.1 Inner and outer radius of the friction pad  ,     27
4.2.2 Friction pad friction coefficient      28
4.2.3 Friction pad effective radius      28
4.2.4 Calculation of area and wear characteristics of friction pads    29
4.2.5 Friction pad’s parameters check    31
4.3 Design and calculation of hydraulic brake drive mechanism    32
4.3.1 Brake wheel cylinder diameter   and working volume      33
Chapter 5 Structure design of the brake’s main parts    35
5.1 Brake disc    35
5.1.1 Brake disc material and requirements    35
5.1.2 Brake disc classification and comparison    35
5.2 Brake caliper    36
5.3 Brake pads    37
5.4 Friction material    38
Chapter 6 3D modeling of the brake    40
6.1 Brake disc modeling    40
6.2 Brake pads modeling    41
6.3 Brake piston modeling    41
6.4 Brake caliper modeling    41
6.5 Overall assembly    43
Chapter 7 Modal analysis and parameter optimization of the brake disc    44
7.1 Finite element modal analysis of the brake disc    44
7.1.1 Introduction to modal analysis    44
7.1.2 Model pre-processing    45
7.1.3 Solve    47
7.1.4 Result of the modal analysis    49
7.2 Parameter optimization of the brake disc    50
7.2.1 Target parameter selection    50
7.2.2 Parameter modification of the brake disc    51
7.2.3 Modal analysis result of the modified model    52
7.2.4 Result of the parameter optimization    53
Conclusion    54
References    55