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1. 发明授权

US5338599A Vibration-damping structural component 失效
标题翻译：振动阻尼结构部件
公开(公告)号：US5338599A
公开(公告)日：1994-08-16
申请号：US800902
申请日：1991-11-26
申请人： David J. Barrett
发明人： David J. Barrett
IPC分类号： B32B7/02 , F16F9/30
CPC分类号： F16F9/306 , B32B7/02 , Y10S248/901 , Y10T428/24942 , Y10T428/2495 , Y10T428/24983 , Y10T428/24992 , Y10T428/249981 , Y10T428/31692
摘要： A laminated structural component with superior resistance to flexural vibions is provided comprising two load-bearing layers and a viscoelastic damping layer sandwiched therebetween. Each of the load-bearing layers comprises an outer stiffness sublayer and an inner compliant sublayer, the compliant sublayer being positioned between the outer stiffness sublayer and the viscoelastic damping layer. The compliant sublayers have an extensional elastic modulus which is less than that of the stiffness sublayers, and greater than that of the viscoelastic damping layer. The laminated structural component experiences greater relative in-plane displacements between the load-bearing layers, and preserves transverse static stiffness.
摘要翻译：提供了具有优异的抗弯曲振动的层压结构部件，其包括两个承载层和夹在其间的粘弹性阻尼层。每个承载层包括外刚度子层和内顺应子层，顺应子层位于外刚度子层和粘弹阻尼层之间。柔性子层具有小于刚度子层的拉伸弹性模量，并且大于粘弹性阻尼层的拉伸弹性模量。层压结构件在承载层之间经历更大的相对面内位移，并保持横向静刚度。

2. 发明授权

US5508116A Metal matrix composite reinforced with shape memory alloy 失效
标题翻译：金属基复合材料与形状记忆合金增强
公开(公告)号：US5508116A
公开(公告)日：1996-04-16
申请号：US431917
申请日：1995-04-28
申请人： David J. Barrett
发明人： David J. Barrett
IPC分类号： C22C47/14 , C22C49/06 , C22F1/00 , B22F7/00 , C22K1/00
CPC分类号： C22F1/006 , C22C47/14 , C22C49/06 , Y10T428/12028 , Y10T428/1216
摘要： A metal matrix composite reinforced with shape memory alloy is disclosed ch is formed by blending metal particles and shape memory alloy particles to form a homogeneous powder blend, and consolidating the powder blend to form a unitary mass. The unitary mass is then plastically deformed such as by extrusion in the presence of heat so as to cause an elongation thereof, whereby the metal particles form a matrix and the shape memory alloy partices align in the direction of elongation of the unitary mass. The composite can be used in structural applications and will exhibit shape memory characteristics.
摘要翻译：公开了一种用形状记忆合金增强的金属基复合材料，其通过混合金属颗粒和形状记忆合金颗粒以形成均匀的粉末混合物，并将粉末混合物固结以形成整体。然后，通过在热的存在下通过挤压使整体质量发生塑性变形，从而导致其伸长，由此金属颗粒形成基体，并且形状记忆合金颗粒在整体质量的伸长方向上排列。复合材料可用于结构应用，并将呈现形状记忆特性。

3. 发明授权

US5368914A Vibration-damping structural component 失效
标题翻译：振动阻尼结构部件
公开(公告)号：US5368914A
公开(公告)日：1994-11-29
申请号：US25535
申请日：1993-03-03
申请人： David J. Barrett
发明人： David J. Barrett
IPC分类号： B32B3/08 , F16F9/30 , B32B9/00
CPC分类号： F16F9/306 , B32B3/08 , Y10T428/24025 , Y10T428/24182 , Y10T428/24223 , Y10T428/24851
摘要： An improvement to a vibration-damping structural component of the type hag viscoelastic material sandwiched between two outer structural layers of stiffness material is disclosed. An inner layer of stiffness material having two predominant surfaces is positioned between the two outer structural layers of stiffness material and is fixed along an edge of one of the two predominant surfaces to one of the two outer structural layers of stiffness material along a line thereon corresponding to a nodal line of vibration. The remainder of the two predominant surfaces is fixed to the viscoelastic material. During flexural vibrations, the inner layer displaces in-plane with respect to the inner surfaces of the outer layers, causing greater shearing in the viscoelastic material, and therefore causing greater vibration damping in the structural component.
摘要翻译：公开了一种具有夹在刚性材料的两个外部结构层之间的粘弹性材料的类型的减振结构部件的改进。具有两个主要表面的刚性材料的内层定位在刚度材料的两个外部结构层之间，并且沿两个主要表面中的一个的边缘沿着其上的线上的刚度材料的两个外部结构层中的一个被固定在其上到一个节点的振动线。两个主要表面的其余部分固定在粘弹性材料上。在弯曲振动期间，内层相对于外层的内表面在平面内移动，在粘弹性材料中引起更大的剪切，因此在结构部件中引起更大的振动阻尼。

4. 发明授权

US5087491A Vibration-damping structural member 失效
标题翻译：减震结构件
公开(公告)号：US5087491A
公开(公告)日：1992-02-11
申请号：US479004
申请日：1990-02-09
申请人： David J. Barrett
发明人： David J. Barrett
IPC分类号： B32B7/02 , F16F1/371 , F16F3/08
CPC分类号： B32B7/02 , F16F1/371 , F16F3/08 , Y10T428/1314 , Y10T428/24992 , Y10T428/30 , Y10T428/31504 , Y10T428/31515 , Y10T428/31518 , Y10T428/31895
摘要： A structural element or member is disclosed that resists or damps vibrationrom loads applied along a given axis without significantly sacrificing stiffness, through the use of stress coupling within an anisotropic material. Essentially, the structural member comprises alternating layers or laminates of stiff and viscoelastic or damping material bonded together to form a laminated structrue. The laminated structural member is oriented to receive the applied load in a direction that is parallel to the laminates. At least one of the stiff laminates shows anisotropic behavior when acted upon by the axial load, causing shear strain and concomitant transverse displacement therewithin, thereby loading the viscoelastic laminate in shear.
摘要翻译：公开了一种结构元件或构件，其通过在各向异性材料内使用应力耦合来抵抗或阻止沿给定轴线施加的载荷而不会显着牺牲刚度。基本上，结构构件包括结合在一起的刚性和粘弹性或阻尼材料的交替层或叠层，以形成层压结构。层压结构件被定向以在平行于层压板的方向上承受施加的载荷。刚性层压板中的至少一个在轴向载荷作用时显示出各向异性的特性，引起剪切应变并伴随其中的横向位移，从而将粘弹性层压板装载在剪切中。

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