The function of the car frame
The car frame , also known as the vehicle frame, is the basic structure of a car and has many important functions. The following are the main functions of the car frame:
Youdaoplaceholder0 Support and connection of assemblies : The car frame supports and connects various assemblies of the vehicle, such as the engine, chassis, body, etc., ensuring they remain in a relatively correct position and bear various loads inside and outside the vehicle .
Youdaoplaceholder0 Load-bearing capacity : It supports all static and dynamic loads such as the engine, chassis, body, passengers and cargo, ensuring the normal operation of the vehicle .
Youdaoplaceholder0 Maintain rigidity : The car frame is designed with high rigidity to ensure that the vehicle resists distortion and deformation during driving and maintains structural stability .
Youdaoplaceholder0 Stress dispersion : The frame can absorb the energy of road impact and collision, protecting the safety of occupants in the vehicle .
Youdaoplaceholder0 Provide installation base : Provide a fixed position for components such as the engine, suspension system, and body to ensure the installation and positioning of each component .
Youdaoplaceholder0 Affects performance : The structural design of the frame directly affects the handling, comfort and safety of the vehicle. For example, non-independent frame is more torsional, while independent frame is lighter .
In addition, the specific structure of the car frame is usually made by welding or riveting metal components such as longitudinal beams, crossbeams, etc. to form the main frame of the whole vehicle .
The material and design of the frame have a significant impact on the durability, handling and safety of a car.
Automobile FRAME faults mainly include body frame structure damage, frame deformation, radiator frame damage and other problems. These problems not only affect the safety and service life of the vehicle, but also increase the maintenance cost.
The vehicle body frame structure was damaged
The vehicle body frame is an important component of A car, including key structural parts such as longitudinal beams, crossbeams, A-pillars, B-pillars, and C-pillars. If these components are damaged, it may lead to deformation, twisting, fracture or welding marks, etc. For example, a frontal collision may cause the front longitudinal beam to fold and deform, and a side collision may cause the B-pillar to deform, affecting the vehicle 's protection capacity .
Damage to the body frame significantly reduces the safety of the vehicle, may result in the inability to effectively protect passengers in a secondary collision, or even affect the handling performance and driving stability of the vehicle .
Frame deformation
The main symptoms of frame deformation include bending, local fracture, skew, local depression and protrusion, etc. The causes of these symptoms include:
Youdaoplaceholder0 Bending moment effect : The bending moment acting on the longitudinal beam of the frame is not entirely on the bending center line of the grooved section of the longitudinal beam, resulting in the longitudinal beam generating both bending stress and torsional stress .
Youdaoplaceholder0 Road reaction force : When driving on rough roads, the road reaction force not transmitted through leaf springs forces the frame to undergo torsional deformation .
Youdaoplaceholder0 Centrifugal force effect : When a car turns, the centrifugal force causes the longitudinal beam to twist and skew .
The frame is used to support and connect the assembly of the vehicle, and its straightness and verticality have a significant impact on frame strength and component mounting .
The frame of the water tank is damaged.
The water tank frame is an important supporting structure for fixing the water tank and the condenser, and it also connects the headlights, the hood lock and the bumper. If there are cracks in the radiator frame, especially cracks that are less than 5 cm in length and not in the stressed area, usually do not have a direct impact on the NORMAL use of the vehicle .
However, for the sake of driving safety, it is recommended to replace the damaged radiator frame in time.
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