US 12,269,295 B2Granted

Variable thickness carbon fiber composite rim structure and ply design method thereof

AssigneeJilin University

InventorsDengfeng Wang, Wenchao Xu, Yong Wang, Jingbo Gao

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Abstract

A variable thickness rim structure made of carbon fiber composite includes an outer ply block, that is paved as an outer side of the rim structure; an upper ply block, that is paved as an upper part of an inner side of the rim structure; a lower ply block, that is paved as a lower part of the inner side of the rim structure; a filling ply block, that is paved among the outer ply block, the upper ply block, and the lower ply block, where a first end of the upper ply block and a first end of the lower ply block extend inwards to form an annular connecting flange; a second end of the upper ply block extends upwards and a second end of the lower ply block extends downwards to form a rim ring together with the outer ply block.

Claims10

Dependent claims

A variable thickness rim structure made of carbon fiber composite, formed by paving multiple layers of carbon fibers, comprising:

a radially outer ply block that is paved as a radially outer side of the rim structure, the radially outer ply block being of an equal thickness multilayer structure;
an axially outboard ply block that is paved as an axially outboard part of a radially inner side of the rim structure, the axially outboard ply block being of a variable thickness differential layer structure;
an axially inboard ply block that is paved as an axially inboard part of the radially inner side of the rim structure, the axially inboard ply block being of a variable thickness differential layer structure;
and
a filling ply block that is paved among the radially outer ply block, the axially outboard ply block, and the axially inboard ply block;
wherein:
a first end of the axially outboard ply block and a first end of the axially inboard ply block extend radially inwards to form an annular connecting flange;
and
a second end of the axially outboard ply block extends axially outwards, and a second end of the axially inboard ply block extends axially inwards to form a rim ring together with the radially outer ply block.

6 more elements

A ply design method for a variable thickness rim structure made of carbon fiber composite, comprising:

determining overall thickness of the rim structure, under an assumption that the rim structure is an equal thickness structure;
performing free dimension optimization on an assembled wheel comprising the rim structure based on fatigue and impact conditions to obtain variable thickness areas and thicknesses of the variable thickness areas;
and
paving layers in a manner of layer intercalating and with variable thickness and optimizing thicknesses and angles of layers of the variable thickness areas.

1 more element

Dependencies are inferred from the claim text.