Papers by Keyword: Metal Rubber Material

Abstract: A new kind of Metal Rubber material vibration isolating bearing is developed and the MR bearings with three different height-width ratio are manufactured. The dynamic shear hysteresis properties of the MR bearings are tested. The theoretical dynamic model method is adopted for the comparative analysis. The experimental results shows that with the H-W ratio decrease, the effective shear stiffness and the effective damping capacity of MR vibration isolating bearing will increase, and the total energy dissipation increases greatly. The selection of the H-W ratio of the MR vibration isolating bearing become an important issue in the structural seismic isolation design.

Abstract: Durability of a combined rotor bearing support with Metal Rubber(MR) material under dynamic loadings was tested in order to provide the information about life and durability for the application of MR material in engineering. Based on the experiments on the rotordynamic properties of a rotor system with the combined bearing support and quasi-static test on the hysteresis properties of the combined bearing support, it can be concluded that the combined bearing support could provide stable stiffness and damping to the rotor system, with a maximum excitation of 1.17×10⁷ times which could meet the requirements of durability in engineering.

Abstract: For optimizing making techniques of metal rubber material, the new weaving technique based on wheel-rib mechanism is firstly put forward. Compared with former ones, the components made by the technique own the larger elastic reversions, and the static and dynamical tests prove that the stiffness of them is the smaller, as well as their elasticity and damp are larger. So the weaving technique on wheel-rib mechanism can increase a lot of elastic and damper quality of metal rubber material components, there is great significance for improving the making techniques of metal rubber material.

Abstract: The figuration technique of grades extrusion for making metal rubber material is firstly put forward. Compared with normal uninterrupted extrusion technique, the elastic reversion of grades extrusion components increases 14.7%, so their elasticity is improved a lot. Measured by the static mechanics testing, the increment of bearing force at each height point is approximate 50N; it verifies that their mechanics property is excelled.

Abstract: Metal rubber material is a new type of elastic and porous material which develops from metal materials. The macro-structure of metal rubber is reticular just as high polymer, made up of fine metal wires. In this paper, the testing equipment which can test micro-motion of metal rubber is designed and the compressive force-displacement curve along molding of metal rubber has gain. The cure along molding of metal rubber has three different characteristic stages. In different characteristic stages, the deformation of metal rubber material has different micro physical mechanism. The micro physical mechanism of different deformation periods is summarized by the micro analyses of three different characteristic curve stages and the study of metal rubber molding technology. Based on the manufacture technology and molding process, the spring wires in metal rubber material have contacted adequately after molding. The micro physical mechanism of metal rubber material in this stage is produced by blank tear combination deformation in linear elastic of spring wires. Because of the deformation stage is very little; the stiffness of metal rubber material is represented linear characteristic in this stage. The contacted points of spring wires are slide along with deformation increasing. The stiffness of metal rubber material is reduced after early linear deformation stage. The compressive force-displacement curve represents soft characteristic stage in macro- expression. When the most contacted points of spring wires are slide along with deformation increasing, the stiffness of metal rubber material is rapid rise. The exponential reinforcement stage is caused by the strongly constraints among spring wires. The micro physical mechanism can explain the different characteristic stages of metal rubber material on compressive performance.