A method for improving fatigue resistance performance of a locomotive rubber-metal pad and the locomotive rubber-metal pad improve the fatigue resistance performance of the rubber-metal pad and prevent rubber and metal from being torn during running by changing a structure of the rubber and the metal of the rubber-metal pad and adjusting a shape and position relationship between the rubber and the metal. The shape and position relationship between the rubber and the metal is adjusted by adjusting thickness of a rubber layer between the rubber and the metal of the rubber-metal pad so that the rubber layer has variable thickness. A rubber layer diameter of each layer is a variable diameter by adjusting a size of the rubber layer diameter between the rubber and the metal of the rubber-metal pad.

A vibration damping device for a structure 1 includes a circular tubular member 3 having a circular tubular inner peripheral surface 2; a columnar elongated member 6 which is disposed in the circular tubular member 3 relatively movably in a direction X with respect to the circular tubular member 3 and having a circular tubular outer peripheral surface 5; and a circular tubular elastic member 10 which has a circular tubular member outer peripheral surface 8 fixed to the inner peripheral surface 2 of the circular tubular member 3 and a circular tubular member inner peripheral surface 9 fixed to the circular tubular outer peripheral surface 5 of the elongated member 6, and which is disposed between the inner peripheral surface 2 of the circular tubular member 3 and the outer peripheral surface 5 of the elongated member 6.

The present subject matter relates to devices, systems, and methods for indicating degradation in a component having None or more elastomeric elements. For example, a degradation indicator can include an indicator element in communication with at least a portion of the one or more elastomeric elements, wherein the indicator element is configured to show visible degradation or damage when a specific and predetermined condition of the one or more elastomeric elements is reached.

A method and apparatus for reducing a force. An apparatus comprises a multi-directional joint assembly and a damper associated with the multi-directional joint assembly. The multi-directional joint assembly has a first end and a second end. The first end and the second end move relative to each other. The damper is comprised of a number of elastomeric layers and a number of rigid layers interspersed with each other reducing at least one of a force and a moment.

A method for improving fatigue resistance performance of a locomotive rubber-metal pad and the locomotive rubber-metal pad improve the fatigue resistance performance of the rubber-metal pad and prevent rubber and metal from being torn during running by changing a structure of the rubber and the metal of the rubber-metal pad and adjusting a shape and position relationship between the rubber and the metal. The shape and position relationship between the rubber and the metal is adjusted by adjusting thickness of a rubber layer between the rubber and the metal of the rubber-metal pad so that the rubber layer has variable thickness. A rubber layer diameter of each layer is a variable diameter by adjusting a size of the rubber layer diameter between the rubber and the metal of the rubber-metal pad.

A method for improving fatigue resistance performance of a locomotive rubber-metal pad with variable diameter and a locomotive rubber-metal pad, which improves the fatigue resistance performance of the rubber-metal pad and prevents rubber and metal from being torn during running by changing a structure of the rubber and the metal of the rubber-metal pad and adjusting a shape and position relationship between the rubber and the metal. The shape and position relationship between the rubber and the metal is adjusted by adjusting a size of a rubber layer diameter between the rubber and the metal of the rubber-metal pad so that the rubber layer diameter of each layer is a variable diameter; and the fatigue resistance performance of the rubber-metal pad is improved by adjusting diameter of rubber layers.

Disclosed is a vibration-damping support device, including a housing, and a core shaft having one end passing through the housing to connect with a vibration source. The vibration-damping support device further includes two elastic members arranged within the housing and spaced apart from each other. Each elastic member includes an inner hole, so that it can be mounted on the core shaft. Each elastic member includes an elastic rubber body, and a plurality of metal plates that are embedded in the elastic rubber body and parallel to each other. The elastic rubber body extends beyond the metal plates in a radial direction. With this vibration-damping support device, a variable stiffness can be achieved.

The present subject matter relates to devices, systems, and methods for indicating degradation in a component having one or more elastomeric elements. For example, a degradation indicator can include an indicator element in communication with at least a portion of the one or more elastomeric elements, wherein the indicator element is configured to show visible degradation or damage when a specific and predetermined condition of the one or more elastomeric elements is reached.

Disclosed is a vibration-damping support device, including a housing, and a core shaft having one end passing through the housing to connect with a vibration source. The vibration-damping support device further includes two elastic members arranged within the housing and spaced apart from each other. Each elastic member includes an inner hole, so that it can be mounted on the core shaft. Each elastic member includes an elastic rubber body, and a plurality of metal plates that are embedded in the elastic rubber body and parallel to each other. The elastic rubber body extends beyond the metal plates in a radial direction. With this vibration-damping support device, a variable stiffness can be achieved.

A tool connection (9, 47) for connecting a tool (1) to a tool support (16), the tool connection (9, 47) including at least one radial shock absorber (19, 20) for at least partially absorbing shock imparted by the tool (1) via the tool connection (9, 47). The radial shock absorber (19, 20) has shock absorbing assemblies (22, 23), each including at least two elastic layers (24) and at least one inelastic layer (25) interleaved between the elastic layers (24). The layers (24, 25) of the shock absorbing assemblies (22, 23) are radially distributed with respect to a connection axis (10, 11) passing through the tool connection (9, 47), the shock absorbing elastic layers (24) including an inner elastic layer (24) and an outer elastic layer (24) radially proximal and distal respectively to the connection axis (10, 11).