What are the basic forms of the structural form of the automobile frame?

There are three basic types of common monolithic body structures: front-engine rear-wheel drive (referred to as front-wheel drive, which can be represented by FR), front-engine front-wheel drive (referred to as front-wheel drive, which can be represented by FF), and mid-engine rear-wheel drive (referred to as mid-rear-drive, which can be represented by MR). For the car body, the structure of front-wheel drive and front-rear wheel drive is common, as shown in Figure 1-18.

The engine, transmission and differential are evenly distributed between the front and rear wheels, reducing the handling force of the control system.

The engine is placed longitudinally on the subframe or supporting beams of the front body.

The engine can be disassembled and installed separately for easy body repair operations.

The propeller shaft is installed in the passage under the floor, which reduces the interior space of the passenger compartment.

Since the engine drivetrain and rear wheels are arranged from front to rear, the sources of vibration and noise in the car are also distributed to the front and rear of the body.

3. What are the characteristics of the front-wheel drive body structure?

The engine is mounted at the front of the body and driven by the front wheels, and the lack of a propeller shaft allows for more space in the passenger compartment. At the same time, the engine, the transmission shaft, the front suspension device and the control device are all arranged in the front of the body, and the front parts of the body bear a relatively large load, so the strength of the front body of the front wheel drive is very different from that of the front rear drive. The features of the front-wheel drive body are as follows.

The transmission and differential are combined into a single unit, there is no propeller shaft, and the body mass is significantly reduced.

Since the source of noise and vibration is mostly at the front of the body, the overall noise and vibration of the car is reduced.

The load on the front suspension and front wheels increased.

The interior space of the body has been increased.

The fuel tank can be located in the center of the car, and the bottom becomes more flat.

Since the engine is mounted in front, the area of the luggage compartment is increased, and there is a forward inertial force in the event of an internal collision, so the mounting components of the engine should be strengthened accordingly.

The above is all the content about the characteristics of the monolithic body compiled by Handa Auto Repair School for you.

The structural form of the automobile frame can basically be divided into side beam type, middle beam type, comprehensive type and beamless type. Hope it works for you.

The structural form of the automobile frame can be basically divided into side beam type, middle beam type, and comprehensive type, and now the car adopts a load-bearing body structure.

What are the basic forms of the structural form of the automobile frame? There are load-bearing type (car, bus), semi-load-bearing type (bus), non-load-bearing type (truck).

The structural form of the automobile frame can be basically divided into side beam type, middle beam type, comprehensive type, and now the car rarely adopts the similar frame in the figure, but adopts the load-bearing body structure.

The structural form of the automobile frame can be basically divided into side beam type, middle beam type, and comprehensive type

The structural form of the car frame can be basically divided into edge beam, middle beam type, comprehensive type and beamless type.

The frame generally consists of stringers and beams. Its form mainly has two kinds of side beam type and middle beam type, and the side beam type frame is composed of two longitudinal beams and a plurality of cross beams located on both sides, and the longitudinal beam and the cross beam are connected into a solid rigid frame by riveting method or welding method.

There are two main forms: side beam type and middle beam type.

1. Trapezoidal frame.

It consists of two longitudinal beams and several beams. The cross-sectional shape of the longitudinal beam is trough-shaped, z-shaped or box-shaped. The longitudinal beam can be made into a curved, equal section or variable section in the horizontal plane or in the longitudinal plane.

Due to its high bending strength, fastening and convenient installation of parts, trapezoidal frame has been widely used in commercial trucks and some passenger cars. It is rarely used in passenger cars.

2. Spine frame.

The spine frame has only one stringer that is located at the front and rear of the car. The cross-sectional shape of the stringer can be either a tube or a box.

The backbone frame has a small frame mass, strength, and stiffness, and can be used in conjunction with an independent suspension to improve the passing capacity of the car. The manufacturing accuracy of the frame is required to be high, and the difficulty of maintenance and repair is its disadvantage.

3. Perimeter frame.

The middle part of the frame is widened, there is no cross beam, and its main parts are usually closed sections.

Due to the low floor height, large passenger compartment volume, simple structure, small weight, and easy manufacturing, the perimeter frame is used in passenger cars with large displacement.

4. Truss frame.

The truss frame is made of a combination of steel pipes and welds. It has the characteristics of high stiffness and small mass, but it is difficult to manufacture and is mainly used for racing.

Side beam type, middle beam type, comprehensive type, theoretically even if there is no body, there is no problem with a single frame "streaking".

Side beam type, middle beam type, comprehensive type, load-bearing body.

The structure of the frame is classified into side beam type, middle beam type, comprehensive type, and load-bearing body.

According to the different structural forms of the frame, it can be divided into three types: A, side beam type B, middle beam type C, hybrid type D, and comprehensive type.

The frame is the matrix of the car, which is generally composed of two longitudinal beams and several cross beams, which are supported on the wheels by the suspension device, the front axle and the rear axle, and are the basic components that support the body and bear the load of the car. Most of the parts and assemblies of the car are fixed by the frame. The frame generally consists of stringers and beams.

At present, the structural form of automobile frame can be divided into three types: side beam type, platform type and spine beam type. Among them, the platform frame is suitable for small cars or trucks; The spine frame is suitable for trucks or cars with independent suspension; The side beam frame is the most widely used, and the imported car market is the answer.