Aluminum Bus Body

12m Bus all-alu Frame

With the implementation of the new energy bus development strategy, the demand for new materials in buses has become increasingly prominent. As a material with low density and excellent strength, aluminum alloy is gradually applied to lightweight passenger car bodies. As one of the indispensable means of transportation for people to travel, the study of bus strength performance and fatigue characteristics is crucial to the safety and economy of buses, and has a huge impact on people's lives and property safety.

The quality of the improved aluminum alloy bus connector is reduced by 18%, its first six natural frequencies are improved to varying degrees, and the strength and stiffness properties are significantly enhanced. In the static strength analysis, the maximum stress value of the body structure under the eight working conditions did not exceed the allowable stress of the material, meeting the strength design requirements of the bus. By analyzing the static test data, the actual stress distribution and deformation of the car body were obtained, and the correctness of the established finite element model was verified. The structural fatigue life of the entire vehicle is predicted to be approximately 8.07 years, with a driving mileage of 1.176 million kilometers, and the life span meets the design requirements.

Size: 12000*2510*2650mm

Usage: applied to city buses

Features

 

 

 

1. The body frame is made of high-strength aluminum alloy profiles, which has the characteristics of high strength, corrosion resistance, impact resistance and other excellent properties.

2. The body frame adopts a combination of screwing, welding, riveting, bonding and other connection methods to achieve process optimization.

3. The maintenance weight is light, thereby improving the power of the car, reducing fuel consumption, reducing emission pollution, and saving energy and environmental protection.

4. Adopt modular design to facilitate off-site transportation and assembly.

 

Process Introduction

 

 

 

1. The body is made of high-strength aluminum profiles independently developed and produced;

2. The main processes are: sawing, laser cutting, CNC processing, pipe bending, roll bending, CNC bending, welding and assembly, etc.

 

Performance

 

 

 

1. Total length 12m, dead weight about 1200kg;

2. The material is mainly 6061-T6;

3. Tensile strength >260MPa, yield strength >240MPa;

4. After overall welding, the strength is high.