Do you know what is important about car body design?

The performance of a car refers to the ability of a car to adapt to various conditions of use and exert maximum work efficiency. The main ones are as follows. (1) The power of the car This is the primary performance of the car.

The car must have enough average speed to drive properly. The car must have enough traction to overcome various driving resistances and drive normally. It all depends on how good or bad the motivation is.

The dynamics of the vehicle can be evaluated from the following three indicators. 1. The maximum speed of the car refers to the maximum speed that the car can achieve when it is fully loaded on a good level road surface. 2. The acceleration ability of the car refers to the ability of the car to rapidly increase the driving speed of the car under various conditions of use.

The shorter the acceleration time, the greater the acceleration and the shorter the acceleration distance, the better the acceleration performance. 3. The uphill ability of the car The uphill ability is expressed by the maximum slope that can be overcome by driving at the lowest gear on a hard road surface at the lowest gear when the car is fully loaded, which is called the maximum climbing degree. It indicates the magnitude of the car's maximum traction.

Different types of cars have different requirements for the above three indicators. Cars and buses focus on the top speed and acceleration capacity, while trucks and off-road vehicles have strict requirements for maximum climbing. However, in order for any kind of car to be able to drive normally on the road, it must have a certain average speed and acceleration ability.

The function of the car body is to safely and reliably accommodate passengers and goods, as well as to protect them from wind, sand, rain, snow and other invasions and adverse weather effects. The body should provide a comfortable driving environment for the driver, provide safe, comfortable and enjoyable riding conditions for the occupants, protect them from the vibration, noise and exhaust of the car as little as possible, and arrive at the destination safely and on time. The body should ensure that the car has a reasonable external shape, beautiful shape, color coordination, and can effectively reduce air resistance and fuel consumption when the car is driving.

In addition, it should also contribute to improving the driving stability of the car and improving the cooling conditions of the engine. Ensuring ventilation in the car is also one of the main requirements for the body. The body structure of the automobile mainly includes the body shell, the gold parts of the plant, the cabin and cab of the truck, the door, the window, the interior and exterior decoration parts of the body, the body accessories, the seats, and the heating and ventilation devices.

Body accessories include windshield wipers, sun visors, mirrors, radios, plug-in antennas, cigarette lighters, ash boxes, door armrests, and televisions.

It should help to improve the driving stability of the car and improve the cooling conditions of the engine. Ensuring ventilation in the car is also one of the main requirements for the body. It is the cover plate on the top of the carriage.

The roof is not a very important component for the overall stiffness of the car body, which is why it is allowed to have a sunroof on the roof cover. From a design point of view, it is important that it transitions smoothly with the front and rear window frames and the junction with the pillars in order to achieve the best visual perception and minimum air resistance. Of course, in order to ensure the safety of the roof cover, it should also have a certain strength and rigidity, generally add a certain number of reinforcing beams under the roof, and lay insulation liner materials on the inner layer of the roof to prevent the conduction of external temperature and reduce the transmission of noise during vibration.

Hello According to your description, the body design, the idea of Chinese design cars is cheap and cost-effective. At present, everything in the international design of cars is to put the safety system first. I hope I found it helpful to you, hopefully, thank you, first of all, to ask this question, which shows that you are beginning to understand the engineering field of automotive design in detail.

Automobile body design is a part of the BAI of automotive engineering data, and the design process is generally completed by OEMs using CATIA. To understand this body of knowledge, you need to understand what are the main contents of body design in general:

1.Body-in-white body.

2.Side panels, fenders, dusks, top covers.

3.Opening and closing parts (front cover, back door, four doors, etc.).

4.Structural parts (A-pillar, B-column, C-column, D-column, anti-collision beam, etc.).

5.Lower body (front floor, front wall panel, rear hail branch floor, dash panel).

6.Body attachments (hinge seals, etc.).

After understanding the scope of the body, understand the job requirements:

1. Responsible for the design of the side wall assembly;

2. Responsible for side wall structure design, vehicle performance analysis and countermeasures, vehicle welding, coating process design, formability analysis, and styling review;

3. Side wall main section and law check;

d. Installation drawings and other design work;

5.Participate in the preparation of the design task book and product technical conditions of the design part of the car and its accessories;

6.Responsible for the 3D structural design, 2D drawing and preparation of related technical documents;

7.Responsible for the maintenance, design, optimization and improvement of parts and systems, and proofreading and checking the design drawings;

8.Assist in the signing of technical agreements for parts and components, development process tracking, trial production tracking, quality problem analysis and confirmation;

9.Responsible for the rectification of body problems in the process of new product design, trial production, testing and trial production.

Art and design, computers, including CAD CAE software, etc., physics mechanics knowledge (related to structural design), chemistry (related to paint, etc.).You must have art skills, hand-drawing, and computer drawing. It is also necessary to understand car dynamics.

At the university, this car body design belongs to the Department of Industrial Design. It mainly includes concept cars, styling, creativity and other aspects.

Engineering Mathematics, Engineering Mechanics, Thermodynamics and Heat Transfer, Fluid Mechanics, Aerodynamics, Vibration Theory of Kinematics, Mechanical Drawing, Mechanical Principles, Mechanical Parts, Engineering Materials, Mechanical Strength, Hail Shooting Electrician, Industrial Electronics, Electronic Control and Microcomputer Control Technology, Hydraulic Technology, Hydraulic Transmission Automobile Theory, Slag Removal Principle, Automobile Structure, Body Art and Modeling, Automobile Manufacturing Technology, Automobile Maintenance, etc. What aerodynamics. Anyway, the mechanics should be good, and the computer graphics should be good.

Automotive expertise is essential.

Art and design, computers, including CAD CAE software, etc., physics mechanics knowledge (related to structural design), chemistry (related to paint, etc.).To have art skills, hand-drawing, electricity, such as brain drawing. It is also necessary to understand car dynamics.

At the university, this car body design belongs to the Department of Industrial Design. It mainly includes concept cars, styling, creativity and other aspects.

Engineering Mathematics, Engineering Mechanics, Thermodynamics and Heat Transfer, Fluid Mechanics, Aerodynamics, Vibration Theory, Mechanical Drawing, Mechanical Principles, Mechanical Parts, Engineering Materials, Mechanical Strength, Electrical Engineering, Industrial Electronics, Electronic Control and Microcomputer Control Technology, Hydraulic Technology, Hydraulic Transmission Vehicle Theory, Engine Principle, Automobile Structure, Body Photography and Modeling, Automobile Manufacturing Technology, Automobile Maintenance, etc. What aerodynamics. Anyway, the mechanics should be good, and the computer graphics should be good.

Automotive expertise is essential.

The automotive engineering design phase mainly includes the following aspects:

1.The general arrangement design is detailed on the previous general arrangement sketch to accurately determine the size and position of each component. Determine the detailed structure, characteristic parameters and quality requirements of each component. Including: engine compartment, chassis, interior, exterior decoration and automotive electrical appliances and other layout drawings.

2. Body modeling data, after the completion of the clay model, the 3D measuring instrument is used to measure the clay model, and the data generated by the measurement is called the point cloud, and the engineer uses curve software such as CATIA and UG Imageware to build the shape of the automobile product according to the point cloud.

3. Engine engineering design, generally the development of new models will select the original mature engine powertrain, and then according to the characteristics and requirements of the new model, the engine is arranged, and the engine is matched, this process continues to the prototype test stage, and the chassis engineering design is carried out simultaneously.

4 Body-in-White engineering design, the design work of the body-in-white is carried out on the basis of the body shape structure, the so-called body-in-white refers to the body structure and the welded assembly of the cover, including the hood, fenders, side panels, doors and trunk lids including the unpainted body body. The body-in-white is a closed structure that ensures the strength of the whole vehicle. These parts are still constructed using 3D digital simulation software, such as UG, CATIA, etc., and perform material selection, manufacturability analysis, welding, assembly and other analysis.

5. Chassis engineering design, chassis includes: transmission system, driving system, steering system, braking system design. The main tasks include:

Definition and calculation of size, structure, process function and parameters, and complete three-dimensional digital model according to the calculation data; Then, according to the three-dimensional digital model, the simulation test and the production of the sample of the parts are carried out; Complete the design and assembly drawings according to the 3D drawing.

6. Interior and exterior engineering design, the main design of interior parts includes instrument panel, steering wheel, seats, seat belts, airbags, carpets, sidewall interior parts, sun visors, armrests, interior mirrors, etc.

7. Electrical design, electrical engineering is responsible for all electrical design of the whole vehicle, including wiper system, air conditioning system, various instruments, vehicle switches, front and rear lights, and interior lighting system.

After the design of the above assembly system, the engineering design stage is completed, and the vehicle design scheme is finally confirmed. At this point, you can start preparing detailed product data sheets and detailed parts list lists to verify regulations. After determining the performance of the whole vehicle, the production technology of each assembly is sorted out and synthesized.

For most people, the appreciation of the car is basically the whole vehicle, in addition to performance, the appearance and interior of the car is the most talked about topic, because this is the most intuitive impression of a car, the so-called car design, the simple understanding is to design the appearance and interior of the car according to the multi-faceted requirements of a model, so that it can be artistic on the basis of giving full play to the performance. However, in fact, car design is a complex matter, and it is not as pure as other designers looking for inspiration in the company of champagne and **. A car is not just a work of art, of course, it needs to have a beautiful appearance and attractive personality, and at the same time, it must be able to drive safely and reliably, which requires a variety of relevant knowledge throughout the design process

Knowledge of body structure, manufacturing process requirements, aerodynamics, ergonomics, engineering materials, mechanical drawing, acoustics and optics, and of course, basic artistic skills such as painting, sculpture, color sense, etc. It is not difficult to understand why there are so few people who can be called automotive designers. From an inspiration in the mind, to the final realization, the simplest estimate is also a dozen steps, and in the end it is nothing more than to be recognized by the market, the inner "core" with excellent performance, plus a new clothing packaging, is the time for the new car to be married.

Let's take a look at how to design a "wedding dress" for a new car. A Brain to Hands: Sketches Let's get started, sit down and think about how to express it.

Although computers have become very common, the most direct way for designers is to take a pencil and express the ideas in their heads, which is very convenient. In the initial stage from brain to hand, there is no need to draw very delicately, simple lines are enough to record the ideas that flash in your mind. Or get new inspiration in the sketch.

b Preliminary finalization: sketch + description When the idea is clear, you can draw a sketch, at this time the main line of the car and the details of the general direction of the design should be expressed, add a simple description in the appropriate place to prepare for the next link. c Expression of ideas:

Renderings When we see some car manuscripts, we are basically in the stage of car renderings, which is mainly to express the designer's ideas and concepts in a more delicate way, add details and colors, and express the intuitive feeling and three-dimensional effect of the car through exquisite paintings. This is one of the most important aspects of car design, and like fashion design renderings, it will be the key to determining the production of models. Some of the renderings are hand-drawn, with markers, toners or airbrushes, and some designers draw them on a computer.

The renderings may not be exactly the same as the details of the final vehicle, but the temperament shown is the same. d Interior design: interior renderings At the same time as the exterior renderings of the car, the interior renderings should be delineated, detailing the various details and layouts of the car, plus the necessary instructions, which is the basis for making models in the future.