Title:
空気入りタイヤの設計方法
Document Type and Number:
Japanese Patent JP4393589
Kind Code:
B2
Abstract:
When a single performance or a plurality of antinomical performances are to be obtained, the best mode of a tire is designed under a given condition. A basic shape model using one block as a reference shape is obtained (100). An object function representing a tire performance evaluation physical amount, a constraint condition for restricting the tire shape, and a design variable which is an angle of a wall surface which determines the block shape are determined (102). Next, the design variable is varied continuously by DELTA ri to determine a modified shape model (104 to 108). A value of the object function of the modified shape model and a value of the constraint condition are calculated, and a sensitivity of the object function and a sensitivity of the constraint condition are determined (110, 112). A variation amount of the design variable which minimizes a standard deviation of block rigidities is estimated, a modified shape model is determined, an object function value is calculated, and a block shape forming the tire is determined by using the value of the design variable (114 to 120).
More Like This:
Inventors:
Ishiyama Makoto
Application Number:
JP52986398A
Publication Date:
January 06, 2010
Filing Date:
December 26, 1997
Export Citation:
Assignee:
Bridgestone Corporation
International Classes:
B60C19/00; B29D30/00; B60C11/00; B60C11/11; B60C11/12; G06F17/50
Domestic Patent References:
| JP7052610A | ||||
| JP7164815A |
Foreign References:
| WO1994016877A1 |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Kato Kazunori
Katsuichi Nishimoto