Rubber mixture for an elastic intermediate layer for a rail support
    1.
    发明授权
    Rubber mixture for an elastic intermediate layer for a rail support 失效
    用于轨道支撑的弹性中间层的橡胶混合物

    公开(公告)号:US5735457A

    公开(公告)日:1998-04-07

    申请号:US549844

    申请日:1996-02-26

    CPC分类号: E01B9/683 F16F1/377

    摘要: A rubber mixture is particularly based on natural rubber (NR), epoxidized natural rubber (E-NR), isoprene rubber (IR), butadiene rubber (BR), acrylate rubber (ACM), styrene-butadiene rubber (SBR), or blends of these types of rubber, particularly NR/SBR- blends or NR-BR- blends, as well as the usual mixing ingredients such as fillers, plasticizers, anti-aging media, as well as additional additives, if needed. This mixture produces a plate-like, elastic intermediate layer with low dynamic stiffening; high dynamic stressability; high specific volume resistivity; and low frequency-dependence of the dynamic stiffening. The intermediate layer is arranged particularly between the base of the rail and the top side of the tie in connection with high-speed rail tracks. The underside of the intermediate layer is provided with at least one recess, with formation of an edge extending all around, and facing the top side of the tie. The top side of the intermediate layer which is the surface supporting the base of the rail, is substantially planar shaped.

    摘要翻译: PCT No.PCT / DE95 / 00186 Sec。 371日期1996年2月26日 102(e)日期1996年2月26日PCT提交1995年2月15日PCT公布。 第WO95 / 22659号公报 日期1995年8月24日橡胶混合物特别是基于天然橡胶(NR),环氧化天然橡胶(E-NR),异戊二烯橡胶(IR),丁二烯橡胶(BR),丙烯酸酯橡胶(ACM),苯乙烯 - 丁二烯橡胶 SBR)或这些类型的橡胶,特别是NR / SBR-共混物或NR-BR-共混物的混合物,以及通常的混合成分例如填料,增塑剂,抗老化介质以及另外的添加剂(如果需要) 。 该混合物产生具有低动态硬化的板状弹性中间层; 高动态应力; 高比体积电阻率; 和动态硬化的低频依赖性。 中间层特别地布置在轨道的基部和与高速铁路轨道相关联的连接的顶侧之间。 中间层的下侧设置有至少一个凹部,其形成有围绕连接件的顶侧的四周延伸的边缘。 作为支撑轨道的基部的表面的中间层的顶侧基本上是平面形状。

    Method and apparatus for determining the pole position in a synchronous
linear stator motor
    9.
    发明授权
    Method and apparatus for determining the pole position in a synchronous linear stator motor 失效
    用于确定同步线性定子电动机中的极位置的方法和装置

    公开(公告)号:US4607203A

    公开(公告)日:1986-08-19

    申请号:US761363

    申请日:1985-08-01

    摘要: At the rotor of a synchronous linear stator motor, a stray flux measuring device (3', 3") measures the angle .theta. of the stator current distribution .phi. and a speed-measuring device (4) measures a speed containing faults. At the stator, an angle .theta.* for the impressed stator current distribution is taken off and the difference of the two angles (.theta.*-.theta.) indicating the stator current distribution is added as a correction signal to the speed (adder 5), from which the pole position (R) is determined by integration. If the pole position R is used to control the frequency of the stator current thereby, a control loop for the angle difference .theta.*-.theta. is produced which regulates the measured pole position R to the actual pole position.

    摘要翻译: 在同步线性定子电动机的转子上,杂散磁通测量装置(3',3“)测量定子电流分布phi的角度θ,速度测量装置(4)测量包含故障的速度。 在定子处,取消外加定子电流分布的角度θ*,并将表示定子电流分布的两个角度(θ*-θ)的差作为校正信号加到速度(加法器5),从 其极点位置(R)由积分确定。 如果极位置R用于控制定子电流的频率,则产生用于角度差θ*-θ的控制回路,其将测量的极位置R调节到实际磁极位置。