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US 2014/0180652 A1Published application
Method for constructing a modified geodesic belt
AssigneeThe Goodyear Tire & Rubber Company
InventorsKiyoshi Ueyoko, Luis Antonio Cabrera
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Abstract
A method of making a modified geodesic belt for a pneumatic tire is described. The ideal geodesic belt path is modified to select the centerline belt angle and to avoid excessive build up of the belt at the belt edges. The method includes the step of calculating the minimum three dimensional distance from one belt edge to the other belt edge preferably using dynamic successive approximation.
Claims17
A method of forming a modified geodesic belt for a tire, the method comprising the steps of:
- selecting a desired centerline angle θs, calculating a three dimensional minimal distance path L from one belt edge to the other belt edge using the following equation:
- a. L=Σ(SQRT(X2+Y2+Z2)),
- for Ψ=0 to AG, Where Z=R*δψ;
- b. Calculating θ at centerline of path
- c. Determining a data set of points of the minimum path,
- d. Incrementing NG if θ≠θs and then Calculating a new AG=NR/NG
- e. Repeating steps a through c until θ about equals θs=/−Δ.
4 more elements
A method of forming a modified geodesic belt for a tire, the method comprising the steps of:
- a. selecting a desired centerline angle θs,
- b. calculating a three dimensional minimal distance path L from one belt edge to the other belt edge, and from ψ=0 to ψ=AG, where AG=NR/NG;
- c. calculating centerline angle θ
- d. modifying the angle ψ if θ is not within a desired range of θs
- e. Repeating steps b through d until θ is not within a desired range of θs.
2 more elements
Dependencies are inferred from the claim text.