Body action on front bumper of car
The body on the front bumper has multiple functions in automobile design, mainly including protecting the vehicle, beautifying the appearance and improving the performance of the vehicle.
Firstly, protecting the vehicle is one of the main functions of the body on the front bumper. Usually made of high-strength plastic and metal materials, it is able to absorb and disperse the impact force in the event of a collision, thereby protecting the body from direct impact . This design not only helps to reduce the damage of the body, but also can reduce the injury of the passengers in the collision to a certain extent .
Secondly, beautifying the appearance is also an important role of the front bumper on the body. The bumper decoration strip usually covers the edge of the bumper body, which is used to beautify the appearance of the vehicle and improve the overall visual effect of the vehicle . In addition, the lighting devices on the front bumper, such as daytime running lights, turn signals, etc., not only provide lighting functions, but also increase the beauty and recognition of the vehicle. Finally, improves vehicle performance In terms of improving vehicle performance, the spoiler design on the front bumper helps to guide airflow and reduce air resistance, thereby improving vehicle stability and fuel economy . This design not only reduces the wind resistance in the road, but also makes the vehicle more stable at high speeds.
The front bumper upper body is commonly called the "front bumper upper trim panel" or "front bumper upper trim strip" . Its main role is to decorate and protect the front of the vehicle, but also has a certain aerodynamic function .
In addition, the front bumper upper body is structurally connected to the bumper reinforcing plate. Specifically, the upper body of the front bumper is connected with the anti-collision beam through a middle reinforcing plate, which is provided with a mounting seat and a connecting part. The connection part is convex to one side of the body on the bumper, and is connected with the anti-collision beam to form a collision avoidance gap to ensure that it will not be deformed when it is subjected to greater gravity, so as to maintain the structural stability of the body on the front bumper .
The main materials of automobile front bumper include plastic, polypropylene (PP), acrylonitrile-butadiene-styrene copolymer (ABS) . Plastic bumper is light, durable, anti-impact and other characteristics, and low water absorption, can maintain a stable state in humid environment .
Advantages and disadvantages of different materials
plastic : plastic bumper has the advantages of lightweight, durable, anti-impact and so on, suitable for mass production, low cost. In addition, plastic bumpers are more durable in low-speed crashes and less expensive to maintain, as the plastic does not rust and does not need to be repaired after a crash .
polypropylene (PP) : PP material has the advantages of high melting point, heat resistance, light weight, corrosion resistance, product strength, rigidity and transparency is good, suitable for automobile bumper .
ABS : ABS material has low water absorption, good impact resistance, rigidity, oil resistance, easy plating and easy forming .
The material difference of different models
The front bumper material may vary from car to car. For example, the front bumper of the BYD Han is made of high-strength plastic and metal, while the front bumper of the Cayenne is made of plastic . In addition, BMW, Mercedes-Benz, Toyota and Honda and other brands also commonly use polypropylene to make bumpers .
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