94results about How to "Reduce vertical stiffness" patented technology

A system for adjusting the compliance of a wheel is provided. In one embodiment, wheel segments are adjusted, causing the stiffness of the wheel to change. Such adjustments can be made while the wheel is rotating, allowing the wheel compliance to be changed while a vehicle is in motion.

A vehicle frame component, such as a siderail or a cross member, is formed with a generally C-shaped cross section in which the vertical web member has a greatly reduced mass, as compared to a comparable C-channel section of uniform construction. The reduced mass web member has a corresponding reduced effective cross section to substantially reduce the component weight without adversely affecting its vertical stiffness.

A system for adjusting the compliance of a wheel is provided. In one embodiment, wheel segments are adjusted, causing the stiffness of the wheel to change. Such adjustments can be made while the wheel is rotating, allowing the wheel compliance to be changed while a vehicle is in motion.

The invention relates to the technical field of shock isolation in building and bridge engineering, in particular to a novel three-dimensional shock isolation device with a tensile function. The novel three-dimensional shock isolation device comprises a top steel platform, a horizontal shock isolation stand, a vertical tensile component, a transition steel platform and a vertical shock isolation component. The horizontal shock isolation stand is connected with the bottom of the top steel platform and the top of the transition steel platform, the vertical shock isolation component is arranged at the bottom of the transition steel platform, the vertical tensile component is arranged on the periphery of the horizontal shock isolation stand in a sleeving mode and connected with the bottom of the top steel platform and the top of the transition steel platform, so the good shock isolation function can be achieved in both the horizontal direction and the vertical direction, the horizontal shock isolation function and the vertical shock isolation function are decoupled without interfering with each other, and safety is high. On the premise that the vertical tensile component does not interrupt the movement of a horizontal shock isolation component or the movement of the vertical shock isolation component, large tensile strength is provided, and high safety stock is provided for preventing the structure from being pulled to be damaged by the stand.

The invention discloses a vertical skid-resistant friction plate used for improving the skid-resistant safety of a welding-type cable saddle. The vertical skid-resistant friction plate is a fanning-shaped corrugated steel plate, a plurality of concentric circle wave trains are evenly distributed from top to bottom on the fanning-shaped corrugated steel plate, the direction of the wave trains is parallel to the upper edge and the lower edge of the fanning-shaped corrugated steel plate, and the lower edge of the fanning-shaped corrugated steel plate is provided with a plurality of approximately n-shaped grooves. The vertical skid-resistant friction plate selects soft steel with the thickness of 12mm-20mm and the surface of the soft steel needs to be sprayed zinc. The vertical skid-resistant friction plate can conveniently separate the cables of a main cable and closely attach to the cables, the lower edge of the fanning-shaped corrugated steel plate is closely attached to the top surface of the arc of a saddle groove, the groove formed in the lower edge is closely buckled with tooth-shaped projections arranged on the top surface of the arc of the saddle groove, and the vertical skid-resistant friction plate can bear a larger vertical shear force. Therefore the vertical skid-resistant friction plate can ensure that the cables of the main cable can generate an even and effective lateral pressing force on the skid-resistant friction plate, the skid-resistant problem of the saddle of the cable tower and the main cable of a three-tower suspension bridge is solved, and the implementation plan is simple, reasonable, safe and economical.

The invention discloses a combined air spring assembly which comprises an upper cover plate, an airbag, a base, an outer metal sleeve, an inner metal press sleeve, a rubber spring set and a steel spring set. The outer metal sleeve is mounted on the base. The inner metal press sleeve is mounted in the outer metal sleeve in a sleeved manner and can move downwards along the inner ring wall of the outer metal sleeve. The rubber spring set is mounted in the inner metal press sleeve in a sleeved manner. The steel spring set is mounted in the rubber spring set in a sleeved manner. The inner metal press sleeve is pressed at the top of the rubber spring set and the top of the steel spring set. The periphery of the upper cover plate is connected with the periphery of the outer metal sleeve through the airbag. An air spring system has the advantages of being simple and compact in structure, low in air leaking heavy load vertical rigidity and high in comfort and stability.

The invention discloses a pre-compaction type air spring system. The pre-compaction type air spring system comprises an upper cover plate, a gasbag, an upper end plate and a lower end plate, wherein the periphery of the upper cover plate is connected with the periphery of the upper end plate through the gasbag; a lower elastomer is connected between the upper end plate and the lower end plate; a pre-compaction plate is arranged on the top of the upper end plate; a higher ring-shaped elastomer is arranged between the pre-compaction plate and the upper end plate; and a first stop part which is positioned in the higher ring-shaped elastomer is arranged on the middle position of the pre-compaction plate. The air spring system has the advantages of being simple in structure, convenient to mount, low in gas-leakage heavy-load perpendicular rigidity and high in comfort and stability.

An actuator load beam comprising a preload bend section defining an array of differently configured stiffness-reducing features. The stiffness-reducing features are characteristically sized in inverse relation to a respective distance from a longitudinal centerline of the actuator load beam at the preload bend section. An associated method comprising determining a thickness of a preload bend section for an actuator load beam associated with a desired resonant performance; determining a volume of stiffness-reducing features in the preload bend section associated with a desired vertical stiffness; and arranging an array of stiffness-reducing features associated with the determined volume in an array of sequentially smaller size with the largest size of the array being disposed nearest to a longitudinal centerline of the actuator load beam at the preload bend section.

The invention relates to a vertical-torsion coupled large-amplitude free vibration wind tunnel experiment system. The system comprises two symmetrically-installed supporting frames, the tops of the supporting frames are provided with at least two upper spring fixing arms, and the upper spring fixing arms are connected to the upper ends of upper springs; lower spring fixing arms are arranged at thebottoms of the supporting frames; the lower spring fixing arms are connected to the lower ends of lower springs; the lower ends of the two upper springs are connected through a rigid suspension arm;a bearing seat is mounted on the rigid suspension arm; two ends of a rigid test model are respectively fixedly connected to one end of a rigid shaft; the other end of the rigid shaft is fixedly arranged in the bearing seat; a hub is fixedly connected to the rigid shaft, a torsion center line of the rigid test model is collinear with the axis of the rigid shaft and the center line of the hub, the periphery of the hub is sleeved with and fixedly connected to the middle of a first flexible connecting piece, and two ends of the first flexible connecting piece extend downwards and are connected tothe upper ends of the lower springs respectively. The system is independently provided with a torsional rigidity system, so that the flexibility of the test device is improved.

The invention discloses a vertical vibration isolation bearing for a building. The vertical vibration isolation bearing for the building comprises supporting seats and inhaul cables, wherein the supporting seats are arranged in parallel on the upper and lower sides, a plurality of vertical vibration isolation supporting units arranged in array are arranged in middle gaps of the supporting seats, and the inhaul cables are arranged at the edge position for connecting the supporting seats on the upper and lower sides. The vertical vibration isolation supporting units comprise steel pipes, connecting plates, sandwich steel plates and vibration isolation layers, wherein the steel pipes are vertically arranged at the center position, and the connecting plates, the sandwich steel plates and the vibration isolation layers are arranged in parallel around the steel pipes. The connecting plates are located on the upper and lower sides and in contact with the supporting seats, and the sandwich steel plates and the vibration isolation layers are arranged at intervals alternately in middle gaps formed by the connecting plates on both sides. According to the vertical vibration isolation bearing for the building, on the premise of meeting the requirements of vertical bearing of the structure, the limit of horizontal displacement to the vibration isolation bearing is strengthened.

The invention provides a spring damping synergistic vibration / shock isolating and reducing device. The spring damping synergistic vibration / shock isolating and reducing device includes an upper steelplate, a lower steel plate, a spiral spring clamped and installed between the steel plates and a barbed-type viscoelastic cylinder damper placed in the spiral spring. The barbed-type viscoelastic cylindrical damper includes an upper inner sleeve, a lower inner sleeve, a lower outer sleeve, a viscoelastic damping layer and a position controlling plate, wherein the upper inner sleeve is fixed to theupper steel plate, the lower inner sleeve and the lower outer sleeve are installed in a sleeved mode coaxially, the viscoelastic damping layer is arranged between the lower inner sleeve and the lowerouter sleeve in a clamped mode, and the position controlling plate is hooped in the lower inner sleeve in the clamped mode along the section. The outer diameter of the upper inner sleeve is less thanthe inner diameter of the lower inner sleeve, and the inner periphery of the bottom end of the upper inner sleeve is provided with upwards-arranged barbs extending upwards obliquely. The outer periphery of the top end of the lower inner sleeve is provided with downwards-arranged barbs extending downwards obliquely. After the upper inner sleeve slides to the lower inner sleeve, the upwards-arranged barbs and the downwards-arranged barbs are engaged and locked, the bottom surfaces of the inner sleeves abut against the position controlling plate. According to the spring damping synergistic vibration / shock isolating and reducing device, a complete spring damping synergistic working system suitable for vertical excitation bearing of a vertical load bearing structure is designed, the problem oflow damping of the system is solved, and excellent vibration isolating and reducing effects are played.

The invention provides a body silicon MEMS relay and its preparation method. The relay includes one relay matrix, which adopts the positive direction attracting driving means and is composed of the upper part and the lower part. The upper structure includes the monocrystalline silicon structured board with the anchor points and girder construction. There are the switch upper board and the drive metallic board of the upper board on the monocrystalline silicon structured board. The lower structure includes a glass / silicon substrate structure and on the substrate structure there are the switch lower board and the drive metallic board of the lower board corresponding to the witch upper board and the drive metallic board of the upper board. It has stable electrics performance and high reliability and is hard to puncture it when being driven by the high voltage.