Title:
METHOD AND APPARATUS FOR ANALYZING FLUID AROUND TIRE
Document Type and Number:
WIPO Patent Application WO/2018/216398
Kind Code:
A1
Abstract:
A method for analyzing fluid in the periphery of a tire which controls against decreases in the quality of the computational grid in a fluid analysis model, thereby preventing accuracy deterioration and calculation failure, for any kind of groove deformation. This method for analyzing fluid includes: a step (ST100) for storing, in a memory 11, a tire finite element model M2 having a groove space element 30 disposed in a groove space enclosed by a groove wall face 21 forming a groove 20 which is formed on the tread; a step (ST101) for rotatively moving the tire finite element model M2 and calculating, by means of mathematical computation, deformations in the model originating in contact with a road surface; a step (ST102) for acquiring, from the result of computing deformations in the model, time-series data relating to the displacement of a node group (P1, P2) which includes all nodes P1 that constitute the exterior surface of the tire including the groove and at least a part of all nodes P2 that constitute the groove space element 30; and a step (ST203) for performing fluid analysis calculations wherein the physical quantity of fluid is calculated for each of the computational grids using a fluid analysis model wherein the space in the periphery of a tire is represented by a plurality of computational grids, while changing the position of the computational grid with the node group (P1, P2) in the time-series data as a control point.
Inventors:
NASHIO HIROSHI (JP)
Application Number:
PCT/JP2018/015673
Publication Date:
November 29, 2018
Filing Date:
April 16, 2018
Export Citation:
Assignee:
TOYO TIRE & RUBBER CO (JP)
International Classes:
B60C19/00; G06F17/50
Foreign References:
| JP2011204157A | 2011-10-13 | |||
| JP2016099273A | 2016-05-30 | |||
| JP2009161115A | 2009-07-23 | |||
| JP2016060381A | 2016-04-25 | |||
| US20130103374A1 | 2013-04-25 | |||
| JP2013216269A | 2013-10-24 | |||
| JP2012006522A | 2012-01-12 |
Other References:
See also references of EP 3632710A4
Attorney, Agent or Firm:
UNIUS PATENT ATTORNEYS OFFICE (JP)
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