Question

Which aspect is not true in the context of frameless construction when compared to conventional framed construction

Answer 1

Explanation:

MR. APPEL defines a frameless car as one in which the body is used as a structural member and in which the axles, engine, and steering gear are attached to the body, instead of having that unit used merely as a shell for passengers.

The chief differences between frameless and conventional cars are summarized by stating that frameless cars: 1. weigh about 2% less; 2. cost less by somewhat more than 2% - where sufficient quantities are involved; 3. are definitely more rigid; 4. are necessary to obtain the lowest floor height; 5. cost no more to service; 6. are just as quiet on the road; and 7. do not involve higher insurance rates than conventional cars.

Design effects brought by the frameless construction are listed as including: 1. elimination of the outside coach builder, even in Europe; 2. there can be no shifting of blame between body and chassis designers for body squeaks, rattles, and so on - the body and the chassis engineer become the same person; 3. because spring brackets, shock absorbers, bumpers, front frame extensions, and so on, are attached directly to thin sheet metal, particular care must be taken in providing local reinforcements to distribute the stress; 4. considerably greater rigidity in the underbody is required for convertible models.

Answer 2

Following aspects are not true in the context of frameless constructions when compared to conventional framed constructions:

Explanation:

• Frameless construction is used for light vehicles, mostly cars, whereas conventional framed constructions are employed for commercial heavy vehicles.  

• In frameless construction, the frame and body are one integrated part and, on this part, different chassis components are fitted. In conventional framed construction, the frame and body are a separate part. The body and chassis components are fitted on the frame.

• Light side members are used in frameless construction, while heavy side members are used in framed constructions.  

• Frameless constructions are designed for a particular vehicle and there is no flexibility to alter the body design for the matching chassis, but in framed constructions, there is the flexibility to fit a variety of bodies to the corresponding chassis.  

• The height of the chassis can’t be changed once it is designed in frameless construction, whereas the height of the chassis can be increased or decreased relying upon the techniques of encasing the chassis frame to the axle.