US 11,807,047 B2
Wear amount estimation method, wear amount estimation device, and wear amount estimation program
Masakazu Sakamoto, Tokyo (JP); and Shoji Oida, Tokyo (JP)
Assigned to BRIDGESTONE CORPORATION, Tokyo (JP)
Appl. No. 17/293,270
Filed by BRIDGESTONE CORPORATION, Tokyo (JP)
PCT Filed Nov. 19, 2019, PCT No. PCT/JP2019/045295
§ 371(c)(1), (2) Date May 12, 2021,
PCT Pub. No. WO2020/105641, PCT Pub. Date May 28, 2020.
Claims priority of application No. 2018-216320 (JP), filed on Nov. 19, 2018.
Prior Publication US 2022/0001701 A1, Jan. 6, 2022
Int. Cl. B60C 23/04 (2006.01); B60C 11/00 (2006.01); B60C 11/24 (2006.01)
CPC B60C 11/246 (2013.01) [B60C 23/0479 (2013.01); B60C 23/0488 (2013.01); B60C 23/0489 (2013.01); B60C 2200/02 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A wear amount estimation method for estimating a wear amount of an aircraft tire including a plurality of ribs in a touching down state based on information related to the aircraft, the method comprising:
calculating a shearing force of each rib of the plurality of ribs based on an average grounding pressure of the each rib;
calculating a wear energy of the aircraft tire based on the shearing force; and
estimating the wear amount of the aircraft tire based on the wear energy and a wear resistance showing a relationship between a predetermined wear amount;
wherein the information related to the aircraft includes an internal pressure of the aircraft tire, and
the average grounding pressure of the each rib is calculated based on the internal pressure and a wheel load applied to the aircraft tire.