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公开(公告)号：US07149670B2
公开(公告)日：2006-12-12
申请号：US10245513
申请日：2002-09-18
申请人： Naoaki Iwasaki , Masaki Shiraishi , Akio Miyori
发明人： Naoaki Iwasaki , Masaki Shiraishi , Akio Miyori
IPC分类号： G06G7/48
CPC分类号： G06F17/5018 , B60C11/00 , B60C19/00 , B60C99/006 , G01M17/02 , G06F17/5095 , G06F2217/16
摘要： The present invention is a method for tire rolling simulation comprising the steps of: setting a tire model by modeling a tire with the use of elements capable of numerical analysis; setting a road surface model including a road-surface matter model formed by modeling road-surface matter forming a road surface with the use of elements that can be numerically analyzed and can cause a volume change due to compression which is substantially permanent; and performing a tire rolling simulation by making the tire model get in contact with the road-surface matter model, thereby providing the tire model with rotating conditions, and conducting deformation calculations of the tire model and the road-surface matter model at minute time increment intervals.
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公开(公告)号：US07130782B2
公开(公告)日：2006-10-31
申请号：US10122327
申请日：2002-04-16
CPC分类号： G06F17/5018 , G06F2217/16
摘要： A gas flow simulation method includes setting an imaginary object model such as a sphere model having at least one concavity, convexity, groove or projection formed thereon by means of a computer. A spatial part on a periphery of the imaginary object model is set. A surface of the imaginary object model and the spatial part is divided into a large number of blocks to form a large number of latticed divisions by lattice points. A gas flows to the imaginary object model from one direction of the spatial part. A motion element of a flow of the gas in the spatial part for each latticed division or for each latticed point is computed, with the gas flowing in the spatial part and passing along the surface of the imaginary object model. The flow of the gas on the periphery of the imaginary object model is simulated.
摘要翻译： 气流模拟方法包括通过计算机设置诸如具有至少一个凹凸，凹槽或凸起的球体模型的假想物体模型。 设置虚拟对象模型的周边上的空间部分。 虚拟对象模型的表面和空间部分被划分成大量的块，以通过格点形成大量网格划分。 气体从空间部分的一个方向流到虚拟物体模型。 计算用于每个网格化分区或每个网格点的空间部分中的气体流动的运动元素，其中气体在空间部分中流动并沿着假想对象模型的表面传播。 模拟假想对象模型周边气体的流动。
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公开(公告)号：US06199026B1
公开(公告)日：2001-03-06
申请号：US09198509
申请日：1998-11-24
申请人： Masaki Shiraishi , Akio Miyori
发明人： Masaki Shiraishi , Akio Miyori
IPC分类号： G01L2500
CPC分类号： G06F17/5095 , B60C3/04 , B60C11/00 , B60C11/24 , B60C99/006 , G06F17/5018
摘要： A method of simulating a rolling tire and a simulator are disclosed, the simulating method comprises the steps of: dividing the tire into a tire body and a tread part therearound, wherein the tire body is defined as a toroidal part of the tire which is materially and geometrically the same or constant along the tire circumferential direction, and the tread part is defined as the remaining annular part around the tire body; modeling the tire body in finite elements; modeling the tread part in finite elements; combining the tread model with the body model to form a tire model; adjusting the beads of the tire model to a wheel rim on which the tire is mounted; contacting the tire model with a road model; moving the road model at predetermined time intervals relatively to the tire model, giving running conditions; obtaining information about the tire model as numerical data in time sequence; and processing the numerical data in time sequence to be outputted as a visible information. Preferably, the body model comprises models of the bead cores, rubber parts, and cord reinforcements each comprising a model of a cord ply and a model of topping rubber, wherein the cord ply is modeled in quadrilateral membrane elements defined as an orthotropic material, and the topping rubber is modeled in hexahedral solid elements.
摘要翻译： 公开了一种模拟滚动轮胎和模拟器的方法，所述模拟方法包括以下步骤：将轮胎分成轮胎主体和轮胎胎体部分，其中轮胎主体被定义为轮胎的环形部分，其实质上 并且沿着轮胎周向在几何上相同或不变，并且胎面部被限定为围绕轮胎主体的剩余环形部分; 轮胎体的有限元建模; 在有限元模拟胎面部分; 将胎面模型与身体模型结合以形成轮胎模型; 将轮胎模型的胎圈调整到其上安装轮胎的轮辋; 将轮胎模型与道路模型联系起来; 以相对于轮胎模型的预定时间间隔移动道路模型，给出运行条件; 以时间顺序获取轮胎模型的数据作为数值数据; 并按时间顺序处理数字数据作为可视信息输出。 优选地，身体模型包括胎圈芯，橡胶部分和脐带加强件的模型，每个包括绳索帘布层的模型和顶部橡胶的模型，其中绳索层被模制为定义为正交各向异性材料的四边形膜元件，以及 顶部橡胶以六面体固体元素建模。
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公开(公告)号：US07076414B2
公开(公告)日：2006-07-11
申请号：US10054788
申请日：2002-01-25
申请人： Akio Miyori
发明人： Akio Miyori
IPC分类号： G06G7/50
CPC分类号： G06F17/5018 , G06F2217/16
摘要： An object having a concavity on a surface thereof is formed by means of a computer. A part of the surface of the object including the concavity is extracted. A spatial part in contact with the extracted surface of the object is formed by dividing the extracted surface of the spatial part into blocks. A large number of lattice-shaped portions is formed by dividing the spatial part into lattices. In a simulation, a gas is flowed into the spatial part in one direction. The motion of the gas is computed discretely for each lattice-shaped portion at each slight time by the equation of continuity and the Navier-Stokes equation. Based on results of the computation, the motion of the gas is visualized by a visualizing program.
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公开(公告)号：US07040368B2
公开(公告)日：2006-05-09
申请号：US10984884
申请日：2004-11-10
申请人： Kiyohito Maruoka , Akio Miyori
发明人： Kiyohito Maruoka , Akio Miyori
IPC分类号： B60C15/00
CPC分类号： B60C15/0027 , B60C15/04 , B60C15/06 , B60C15/0607 , Y10T152/10819 , Y10T152/10828 , Y10T152/10837
摘要： A heavy duty tire comprises a carcass ply turned up around a bead core in each bead portion to form a pair of turnup portions and a main portion, and a bead reinforcing layer disposed in the bead portion and comprising an axially outer part and an axially inner part, wherein under a 50 kPa state of the tire in which the tire is mounted on a standard rim and inflated to 50 kpa: the turnup portion inclines towards the carcass ply main portion at an angle of less than 90 degrees; the distance La of the end of the turnup portion from the radially outer side of the bead core is in a range of from 5 to 12 mm; the radial height Ho of the axially outer part is in a range of from 20 to 35 mm; the distance To of the end of the axially outer part from the axially outer surface of the bead portion is in a range of from 6 to 12 mm; and the ratio To/Ho of the distance To to the height Ho is in a range of from 0.25 to 0.5.
摘要翻译： 重型轮胎包括在每个胎圈部分中围绕胎圈芯圈卷起的胎体帘布层，以形成一对翻转部分和主要部分，以及设置在胎圈部分中的胎圈加强层，包括轴向外部部分和轴向内部 其特征在于，在将所述轮胎安装在标准轮辋上并膨胀至50kpa的轮胎的50kPa状态下，所述翻转部以小于90度的角度朝向所述胎体帘布层主体部倾斜; 凸起部的端部与胎圈芯的径向外侧的距离La在5〜12mm的范围内; 轴向外部的径向高度Ho在20至35mm的范围内; 从胎圈部的轴向外表面到轴向外侧部分的端部的距离To在6至12mm的范围内; 并且距离To与高度Ho的比To / Ho在0.25至0.5的范围内。
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公开(公告)号：US20050126675A1
公开(公告)日：2005-06-16
申请号：US10984884
申请日：2004-11-10
申请人： Kiyohito Maruoka , Akio Miyori
发明人： Kiyohito Maruoka , Akio Miyori
CPC分类号： B60C15/0027 , B60C15/04 , B60C15/06 , B60C15/0607 , Y10T152/10819 , Y10T152/10828 , Y10T152/10837
摘要： A heavy duty tire comprises a carcass ply turned up around a bead core in each bead portion to form a pair of turnup portions and a main portion, and a bead reinforcing layer disposed in the bead portion and comprising an axially outer part and an axially inner part, wherein under a 50 kPa state of the tire in which the tire is mounted on a standard rim and inflated to 50 kpa: the turnup portion inclines towards the carcass ply main portion at an angle of less than 90 degrees; the distance La of the end of the turnup portion from the radially outer side of the bead core is in a range of from 5 to 12 mm; the radial height Ho of the axially outer part is in a range of from 20 to 35 mm; the distance To of the end of the axially outer part from the axially outer surface of the bead portion is in a range of from 6 to 12 mm; and the ratio To/Ho of the distance To to the height Ho is in a range of from 0.25 to 0.5.
摘要翻译： 重型轮胎包括在每个胎圈部分中围绕胎圈芯圈卷起的胎体帘布层，以形成一对翻转部分和主要部分，以及设置在胎圈部分中的胎圈加强层，包括轴向外部部分和轴向内部 其特征在于，在将所述轮胎安装在标准轮辋上并膨胀至50kpa的轮胎的50kPa状态下，所述翻转部以小于90度的角度朝向所述胎体帘布层主体部倾斜; 凸起部的端部与胎圈芯的径向外侧的距离La在5〜12mm的范围内; 轴向外部的径向高度Ho在20至35mm的范围内; 从胎圈部的轴向外表面到轴向外侧部分的端部的距离To在6至12mm的范围内; 并且距离To与高度Ho的比To / Ho在0.25至0.5的范围内。
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