| 摘要 |
PURPOSE:To perform vibration analysis in consideration of the effect of internal pressure and to facilitate computation by providing a constitution wherein neighboring nodal points of elements constituting a tread part are connected with spring elements in the direction of the diameter of a tire. CONSTITUTION:This vibration analyzing model comprises beam elements 1, rigid body beam elements 3, first - fourth spring/attenuating elements 5, 7, 9 and 11 and spring elements. The beam element 1 represents the tread part of a tire. The elements 1 are constituted as elements (e.g. 16 elements) obtained by dividing the tread part into a plurality of the elements in the circumferential direction. The first spring/attenuating elements 5 are provided between nodal points 15a - 15p of the beam elements 1 and each rigid body beam element 3. The element 5 represents the rigidity of a side wall in the direction of the diameter. The second - fourth spring/attenuating elements 7, 9 and 11 represent the rigidities in the directions of the circumference, the diameter and the lateral line of the rubber block of the tire grounding part. The spring elements connect the neighboring nodal points 15a - 15p of the beam elements 1 in the direction of the diameter of the tire and represent the force caused by the tensile force of the tread. |
