1
what’s the use?
carried by an independent frame body (beam). Powertrain, suspension system fixed to the frame for driving load or off-road.
2
advantages
· frame (commonly known as beam) high strength, significantly improved body rigidity, increase vehicle load capacity.
* non-load-type off-road vehicle body, the vehicle body can be more resistant to twisting, to prevent deformation of the vehicle body.
3
is less than
* frame, body of two independent members, a large weight, relatively cost oil.
· high center of gravity, the vehicle body frame, has a certain impact on the high speed stability.
4
You know what?
· SUV are not most non-load-type body, only a portion of the off-road SUV partial hardcore was employed.
5
Technical Overview
[123 ]
non-bearing structure of the vehicle body, that the white suspension is not directly connected to the vehicle body, but attached to the frame, a vehicle body frame above and then buckle. Frame carrying the whole body, engine, suspension, in the frame body. In theory, even without the body, a single frame can be run, but the role of the body to provide space for the driver and passengers.
6
Technology Principle [123 ]
has a frame side beam, and the like in the form of steel tube, which side beam is the most widely used as a vehicle frame. Side beam-type frame formed by two longitudinal beams and a plurality of root length short riveted or welded beams forming the main negative for the stringer bending load, the general channel-shaped steel beam having a large flexural strength. Also used in the steel, but more on a lightweight frame. Usually the central stringer maximum force, so designers generally central longitudinal beam cross-section to increase the height, the height across the cross-section is gradually reduced, so that uniform stress distribution can also reduce the weight.
of the vehicle body is suspended on the frame, coupled with the elastic member. The vibration transmitted to the frame by the elastic member to the vehicle body, most of the vibration is reduced or eliminated, the frame can absorb most of the impact force of collision, the vehicle body when traveling protect bad roads, and therefore the carCar deformation is small, smooth and safety, and low noise inside the car. However, this non-bearing body relatively bulky, massive, high automobile centroid poor high speed running stability.
rigid body
If a non-load-type body by a higher off-road vehicles, uneven surfaces, very rigid chassis having good torsional effect, opposing body Unibody deformation that occurs is much smaller, it is keenly aware of, and this was also part of the hardcore off-road vehicles commonly used by one of the main non-load-type body.
Comfort
non-bearing body due to a high center of gravity, shaking occupants to be large, but a long travel damper is generally off-road vehicles, you can filter out more big bumps, comfort is also good.
Equipment mass
by a ladder frame out of two thick steel beams welded together, based on the weight of this portion itself, plus similar carrier type body shell, in contrast will be even greater weight, acceleration performance will decrease, and fuel consumption will increase. Although the relatively complex bearing body structure than the non-bearing body, but only with a key part by weight of a relatively large number of high strength steel.
7
Further reading
[123 ]
non-bearing body structure is a long history of chassis form, almost all cars in the early this configuration. A hundred years ago, the era when the car or custom car, be the first choice when people buy a car chassis, and then re-election on the basis of chassis to choose different styles of different customized vehicle body manufacturer.
semi-monocoque
Usually a semi-monocoque bus. It is a non-bearing body betweenAnd structure between the monocoque, he has a complete independent frame, and the frame is rigidly connected with the vehicle body, and therefore can withstand the housing body part load.