摘要:
A rolling stock fitting structure has laminated panels, each formed by sandwiching a core member between a pair of face plates, and framing shapes are placed between the face plates around the periphery of the panels and possibly in the interior thereof to provide structural strength. The laminated panels, which may be shaped to conform to a particular design, are joined and welded together to form a rolling stock body. The framing shapes are provided with a support shape for holding equipment, the support shape being mounted on a rod fixed to the framing shape, so that the load of the equipment on the holding member can be distributed through the framing shapes to the laminated panel, thereby securing the equipment reliably.
摘要:
A rolling stock fitting structure has laminated panels, each formed by sandwiching a core member between a pair of face plates, and channel members are placed between the face plates around the periphery of the panels and possibly in the interior thereof to provide structural strength. The laminated panels, which may be shaped to conform to a particular design, are joined and welded together to form a rolling stock body. The channels are provided with holding members for holding equipment, so that the load of the equipment on the holding member can be distributed through the channel member to the laminated panel, thereby securing the equipment reliably.
摘要:
A car body for high speed railway rolling stock and a method of fabricating the same wherein, in order to prevent a variation of external pressures produced when the rolling stock travels at high speeds from being propagated into the interior of the car body, the car body is of an air-type construction. The car body has a reduced weight and is capable of withstanding a variation of the external pressures by the provision of a construction in which the underframe of the car body includes a curved surface having at least one radius of curvature extending across a width of the car body.
摘要:
A current collecting apparatus provided with sliders 2 for collecting electric power from a power feeder 1, a current collector 3 for collecting power, an insulator for insulating and supporting the current collector 3, and a flexible conductor for delivering the power collected by the current collector 3 to a conductor 5, which is connected to the flexible conductor and used for supplying the power to the vehicle side. The conductor 5 and the insulator 4 are disposed so that the former is offset with respect to the latter in the crosswise direction of a railway vehicle. With this arrangement, aerodynamic noise emanating from the current collector loaded on the vehicle running at high speed can be substantially reduced.
摘要:
A method is provided for making a passenger car body structure which has a panel assembly forming at least part of a side, the roof, and end of the floorplate. Each panel has inner and outer spaced metal sheets and a cellular metal core brazed to the sheets and maintaining them spaced apart. To join the panels, a metal connecting member is joined to at least one of the inner and outer sheets and has a projection for use in welding the panel to the neighboring panel. The projection extends in the lateral direction of the panel and is preferably of material thicker than the general sheet thickness of the sheets. A frame member of the body structure may be welded to the panels at the joint.
摘要:
A low noise current collector 20 having excellent controllability and response, and a high speed railway train using such current collectors. The current collector 20 includes an aerodynamically shaped current collector head 22, a driving cylinder 32 to move the current collecting head, a supporting insulator 30, and a cable head 50 supporting a conductor 53 for conducting current from current collecting head 22 to a load. The current collector 20 is controlled by a cylinder 7 for raising and lowering so that the current collector may be contained in a dome 4 when it is in use. A multi-car train has four current collectors, two toward each end, and each current collector has its front side directed toward the center of the train. The two current collectors at the rear of the train are utilized, while the two at the front are contained within their domes 4. Therefore, the train can run in either direction, utilizing the appropriate pair of current collectors.
摘要:
A railway car body structure running at a high speed and a production method thereof. To reduce vibration and noise and to prevent influences of outdoor pressure variations on passengers in the case of a high-speed railway car, the weight of the car body structure must be reduced and its pressure resistance must be improved. Each of the side units, roof unit and end unit and floor plates of an underframe of the car body structure includes plate members obtained by joining two surface materials, a core material and binding materials through metal-to-metal bonding. The sheet thickness of the surface material on an outdoor side is greater than a sheet thickness of the surface material on an indoor side. The plate members are constructed as a block, and a plurality of blocks are joined so as to form the side units, roof unit or the floor plates of the underframe.
摘要:
A method of manufacturing a portion of a vehicle body, with the portion being at least part of one of a side, an end, a roof, and a floor plate of the body. The method comprises the steps of providing extruded metal plates formed of a light alloy metal with each of the plates having welding edges and integral structural ribs extending parallel to the welding edges on the inner face of the plates, arranging the plates on a jig in position for welding of the welding edges, without an overlap of the welding edges, restraining the plates in a welding position on the jig, and welding the welding edges on the jig by one-sided welding from an inner side of the plates to produce continuous welds. Frame members extending transversely to the structural ribs can be welded on the same side without moving the plate from the jig.
摘要:
A current collector for a railway trolley vehicle includes a current collecting member having a contact strip, a driving system for moving the current collecting member into and out of contact with a trolley wire, a load cell for detecting force acting between the current collecting member and the driving system, a displacement meter for detecting displacement of the driving system, first and second estimating circuits, and a control circuit. The first estimating circuit provides an estimated value of the contact force between the current collector and the trolley wire by estimating values of first parameters of the contact strip, the current collecting member, and the trolley wire and summing products of each of these values and a corresponding weighting factor. The second estimating circuit provides an estimated value of a disturbance suppressing force by estimating values of second parameters of the contact strip, the current collecting member, and the trolley wire and summing products of each of these values and a corresponding weighting factor. The control circuit calculates a difference force value by subtracting the estimated contact force value and the estimated disturbance suppressing force value from a contact force target value. The control circuit then adjusts a pushing-up force of the driving system on the basis of the calculated force difference value.
摘要:
A honeycomb panel having a honeycomb core interposed between two face plates, and inserts which are exposed to an opening formed through the panel. A desired member is bonded to the panel through the inserts and the face plates which are bonded together. The inserts are disposed in selected honeycomb cells of the honeycomb core when the honeycomb core is assembled with the face plates, or the inserts are inserted into the selected honeycomb cells which are open to the opening or a preliminary hole formed before the opening is cut. Alternatively, the inserts are positioned relative to the face plates before the honeycomb core members are disposed relative to the inserts. The honeycomb panel may be produced by various methods disclosed.