Showing papers on "Integrally closed published in 2018"

Dynamic analysis of integrally shrouded group blades with rubbing and impact

Abstract: Forced vibration responses of integrally shrouded group blades are investigated in this paper. A lumped mass model of integrally shrouded group blades considering centrifugal stiffening of the blade and rubbing and impact between adjacent shrouds is established. In the proposed model, collision force is approximated by linear springs, and friction force is approximated by an exponential-type velocity-dependent model. Stick-slip-separation transition boundaries are determined. Runge–Kutta algorithm is used to compute vibration responses and study the effects of stiffness ratio, rotating speed and aerodynamic excitation amplitude on the vibration responses of integrally shrouded group blades. Vibration reduction effect of the shroud on the reference blade at the first dynamic resonance speed is illustrated. Numerical results indicate that stiffness ratio, initial gap and contact angle have a great effect on the normalised energy density (the value of which can represent vibration reduction effect of the shroud), and the reference blade can experience periodic, quasi-periodic and chaotic vibration due to nonsmooth behaviour at the shroud contact interfaces.

Straw feed pulverizing and mixing integrated processing device for animal husbandry

Abstract: The invention discloses a straw feed pulverizing and mixing integrated processing device for animal husbandry. The straw feed pulverizing and mixing integrated processing device for animal husbandry comprises a processing box and a fermenting and storing box, wherein supporting columns are symmetrically arranged on two sides of the lower end of the processing box; the lower ends of the supportingcolumns are fixedly connected with the fermenting and storing box; supporting legs are symmetrically arranged on two sides of the lower end of the fermenting and storing box; a roller which facilitates carrying of the device is arranged at the lower end of each supporting leg; the processing box is a cylindrical barrel; a driving motor is fixed in the middle of the upper end of the processing box;and a rotating shaft is arranged at an output end of the driving motor. The straw feed pulverizing and mixing integrated processing device for animal husbandry is simple and reasonable in structure and convenient to carry; a pulverizing mechanism and a stirring mechanism are arranged integrally, so that the occupied area of the device is reduced; the working range of a pulverizing knife and the working range of a stirring rod are adjustable, so that the pulverizing range and the stirring range of the device are expanded; and the early-stage pulverizing quality of the straws and the rear-stagestraw and addition material mixing effect are ensured, thus, the quality of processed feed is ensured, demands of people are met, and practicality is high.

Capacitive sensor sheet and sensor device

Abstract: The present invention relates to a capacitive sensor sheet for measuring the amount of deformation of an object to be measured with high sensitivity and precision. The capacitive sensor sheet according to the present invention is provided with: a sensor body having a sheet-shaped dielectric layer made of an elastomer composition and a first electrode layer and second electrode layer made of a conductive composition containing a conductive material and formed on a front surface and a rear surface of the dielectric layer, respectively, so as to be at least partially opposed to each other with the dielectric layer therebetween, the opposing portions of the first electrode layer and the second electrode layer forming a detection section, and the sensor body being reversibly deformable so that the areas of the front and rear surfaces of the dielectric layer change; and elastic cloth integrally formed with the sensor body, the cloth being anisotropic in terms of elasticity.

Nonlinear Vibrational Analysis for Integrally Bladed Disk Using Frictional Ring Damper

Abstract: The use of integrally bladed-disk is now very popular in turbomachinery industry since they feature significant aerodynamic and structural improvements along with a significant mass reduction. However, these integrated single structures can arise a major high cycle fatigue issue due to the lack of sufficient damping for dissipating the vibrational energy. This work describes a numerical investigation of the nonlinear dynamic behaviour and nonlinear normal mode for such a bladed-disk with frictional ring damper using the Harmonic Balanced Method (HBM) with alternating Fourier transformation. Jenkins element is used to model the nonlinear contact friction between the disc and ring damper. Using such a modeling strategy, the modal damping and resonance amplitude are directly and efficiently computed through nonlinear normal mode analysis. The initial results show the vibrational level on the blades can be effectively controlled by the parameters of the ring damper model. The effectiveness of ring damper and damping performance is evaluated. This study also indicates the nonlinear normal mode analysis based HBM may be an effective method to analyse the dynamic behaviour of the integrated bladed-disk with frictional ring damper.

Hybrid arm and method for manufacturing same

Abstract: A hybrid arm according to an embodiment of the present disclosure may include: a first body made of a metal material and formed with a plurality of end portions; a second body formed so as to fill an inner side of the first body by being insert-injection-molded to the first body; and a ball joint formed integrally at a first end portion among the plurality of end portions of the first body. The ball joint may include: a reinforcement member coupled to the first end portion; a bearing member formed with a space therein; a ball stud including a ball rotatably inserted into the space of the bearing member and a rod extending upward of the ball; and a housing interposed between the reinforcement member and the bearing member and formed integrally with the second body.

Rotary electric machine

Abstract: PROBLEM TO BE SOLVED: To provide a rotary electric machine which can restrict an increase in the number of assembling processes of the rotary electric machine while ensuring insulation between a winding and a core and restricting an increase in the number of componentsSOLUTION: This rotary electric machine 100 comprises a winding 11, a rotor core 10, and an insulation member 8 which is arranged between the winding 11 and the rotor core 10 over a plurality of slots 13 And the insulation member 8 comprises an end surface coating part 81 coating an end face 12a at one side in the axial direction of a tooth part 12, a side face coating part 82 which is integrally formed with the end surface coating part 81 and coats a side face 12b of the tooth part 12, and a tip part 83 which is integrally formed with the side face coating part 82 and projects to the other side in the axial direction more than an end face 12c at the other side in the axial direction of the tooth part 12SELECTED DRAWING: Figure 4

Polarized battery tray for a vehicle

Abstract: A battery tray for a vehicle includes two tray components or pieces that attach or mate together, such as with one tray component over or within the other tray component, to form sealed and separate battery containment areas. The lower tray component that has a panel portion and a pair of elongated reinforcement members integrally protruding upward from opposing edges of the panel portion. Also, the upper tray component has a panel portion and a cross members that integrally extend across its panel portion. The upper tray component is disposed at an upper surface of the panel portion of the lower tray component with the cross members extending between the elongated reinforcement members and defining a battery containment area between each of the cross members.

Unmanned aerial vehicle body integrated molding technology

Abstract: The invention discloses an unmanned aerial vehicle body integrated molding technology. Carbon fiber prepreg and lightweight foam are used as raw materials, are paved on the inner wall of a double-female mold combination mold by adopting a prepreg lapping joint integral layering technology, and then are integrally solidified and molded by adopting an autoclave molding technology. The unmanned aerial vehicle body integrated molding technology has the beneficial effects that the technology is simple and is easy to operate; the molding time is short; the product size is accurate and controllable;and a manufactured unmanned aerial vehicle body has high strength, good rigidity, light dead weight and a smooth and fat surface, is easy to maintain routinely and is suitable for large batch production.

Frame integrated mask and producing method thereof

Abstract: The present invention relates to a frame integrated mask (10) and a producing method thereof. According to the present invention, the frame integrated mask (10) in which a plurality of masks (20) and a mask frame (40) supporting the plurality of masks (20) are integrally formed comprises a plurality of grid frames (30) in which the masks (20) having a mask pattern (PP) formed thereon are integrally connected on top; and one mask frame (40) in which the plurality of grid frames (30) are connected on top. Therefore, it is possible to improve stability of pixel deposition.

Active Subspace Development of Integrally Bladed Disk Dynamic Properties due to Manufacturing Variations

Abstract: The impact of geometry variations on integrally bladed disk eigenvalues is investigated. A large population of industrial bladed disks (blisks) are scanned via a structured light optical scanner to provide as-measured geometries in the form of point-cloud data. The point cloud data are transformed using principal component (PC) analysis that results in a Pareto of PCs. The PCs are used as inputs to predict the variation in a blisk's eigenvalues due to geometry variations from nominal when all blades have the same deviations. A large subset of the PCs is retained to represent the geometry variation, which proves challenging in probabilistic analyses because of the curse of dimensionality. To overcome this, the dimensionality of the problem is reduced by computing an active subspace that describes critical directions in the PC input space. Active variables in this subspace are then fit with a surrogate model of a blisk's eigenvalues. This surrogate can be sampled efficiently with the large subset of PCs retained in the active subspace formulation to yield a predicted distribution in eigenvalues. The ability of building an active subspace mapping PC coefficient to eigenvalues is demonstrated. Results indicate that exploitation of the active subspace is capable of capturing eigenvalue variation.

Current sensor device

Abstract: A current sensor device includes: at least one bus bar; at least one sensor package that includes a magneto-electric conversion element which detects a current flowing through the bus bar and an external connection terminal which is electrically connected to the magneto-electric conversion element; a printed circuit board that is disposed on the sensor package opposite to the bus bar, and electrically connected to the terminal; a magnetic shield body that shields the magneto-electric conversion element from an external magnetic field; and a resin element that integrally holds at least a part of the magnetic shield body and the bus bar fixed to the sensor package.

Some remarks on semirings and their ideals

Abstract: In this paper, we give semiring version of some classical results in commutative algebra related to Euclidean rings, PIDs, UFDs, G-domains, and GCD and integrally closed domains.

Contacts for testing a semiconductor device and socket device

Abstract: The present invention relates to a hybrid contact for testing a semiconductor device and a socket device. According to the present invention, the hybrid contact comprises: a first contact unit integrally formed by rolling a certain form of a stripe pattern formed by punching a metal plate in a cylindrical shape; a second contact unit with conductivity and elasticity positioned to be inserted into the first contact unit; and a molding unit with an elastic material having insulation properties integrally fixing the first and second contact units. Therefore, by complementing a disadvantage of general pin type and rubber type contacts, mechanical characteristics and electrical characteristics are easily optimized according to a requirement of a test device, and the contact is suitable for a test of a fine pitch device.

Support, input and output assembly and terminal

Abstract: The invention discloses a support. The support is an integrally molded structure and comprises a main body. The main body comprises a first surface and a second surface opposite to each other, whereinthe second surface is provided with at least one accommodating cavity, the first surface is provided with at least one through hole corresponding to the at least one accommodating cavity, the at least one accommodating cavity is used for fixedly installing an input and output module so as to expose the input and output module from the second surface, the at least one through hole is used for exposing the input and output module from the first surface, the input and output module at least comprises an imaging module, the main body comprises a side wall, the first surface and the second surfaceare connected via the side wall, the support also comprises a fixed protrusion protruded outwards from the side wall, and the fixed protrusion is used for fixing the support. The invention also discloses an input and output assembly and a terminal. As the support is integrally molded, when the plurality of input and output modules are installed in the accommodating cavities, the relative positions of the input and output modules are not prone to change, and the plurality of input and output modules can better cooperate with each other for work.

Drilling machine for road construction

Abstract: The invention relates to a drilling machine for road construction. The problem that an existing drilling machine cannot change directions and replace rods automatically is effectively solved. According to the technical scheme, the drilling machine comprises a workbench, a drill hole is formed in the workbench, the workbench is integrally connected with a locating circular ring by a supporting column located near the drill hole, and a locating circular ring thread is arranged on the inner wall of the locating circular ring in a tapping mode. A rotating rod is arranged in the locating circular ring, a rotating rod thread is arranged on the outer wall of the rotating rod in a tapping mode, the rotating rod meshes with the locating circular ring in a threaded mode, and a drill rod is connectedto the lower end of the rotating rod in a threaded mode. A driving screw is arranged next to the drill rod in a threaded and meshing mode, the rotating rod can drive the locating circular ring to move rotatably up and down in the locating circular ring, a driven small gear is integrally and coaxially connected to the lower end of the driving screw, and a driving gear ring is arranged outside thedriven small gear in a meshing mode. A helical tooth is arranged outside the driving gear ring, a driven helical gear is arranged next to the driving gear ring in a meshing mode, a driven belt pulleyis integrally connected to the driven helical gear, a planetary gear train is in pin joint with the driven belt pulley, and the planetary gear train is controlled by a control system. The drilling machine for the road construction improves the efficiency of construction work.

Lens driving device, camera module, and camera-mounted device

Abstract: Provided are a lens driving device, a camera module, and a camera-mounted device for which the miniaturization and weight reduction can be achieved and the reliability can also be improved. The lens driving device includes auto-focusing and shake-correcting driving parts utilizing a voice coil motor. A shake-correcting fixing part includes a coil board consisting of a multilayer printed wiring board in which multiple unit layers consisting of a conductor layer and an insulating layer are stacked on one another, and a base on which the coil board is placed. A shake-correcting coil part, an external terminal, and a conductor pattern including a power-supply line configured to connect the external terminal to the shake-correcting coil part are integrally formed in the coil board.

Pointwise minimal extensions

Abstract: We characterize pointwise minimal extensions of rings, introduced by Cahen et al. (Rocky Mt J Math 41:1081–1125, 2011), in the special context of domains. We show that pointwise minimal extensions are either integral or integrally closed. In the closed case, they are nothing but minimal extensions. Otherwise, there are four cases: either all minimal sub-extensions are of the same type (ramified, decomposed, or inert) or coexist as only ramified and inert minimal sub-extensions.

Display panel, displayer and manufacturing method of display panel and displayer

Abstract: The invention discloses a display panel, a displayer and a manufacturing method of the display panel. The display panel comprises a first display substrate and an opposite substrate which are oppositeto each other; the first display substrate comprises a substrate body and flexible thin film integrally covering the substrate body, and the flexible thin film is provided with a first area corresponding to a display area and a second area beyond the substrate body; the first area is provided with a first circuit, the second area is provided with a second circuit, the first display substrate is covered with the flexible thin film, the second circuit on the flexible thin film can be bent accordingly, and therefore a bezel of a display screen can be reduced without being limited by the size ofa peripheral circuit; the bezel of the display screen is narrowed, the proportion of the display screen is larger, and therefore the requirement of consumers for wider pictures of the liquid crystal display screen is met.

Battery module housing having an integrally-formed cooling plate

Abstract: A battery module has a lower housing and an upper housing. The lower housing has a plurality of generally vertical sidewalls defining a space for receiving a plurality of battery cells and a generally horizontal bottom wall. The plurality of sidewalls include a first sidewall. The lower housing further has a cooling plate integrally formed with the lower housing. The cooling plate has a support wall extending generally parallel to the bottom wall for supporting the plurality of battery cells, a plurality of generally vertical channel walls including a first channel wall, and a cooling channel for receiving a coolant fluid therein. At least a portion of the cooling channel is defined at sides thereof by the first sidewall and the first channel wall. The upper housing covers a top opening of the lower housing to form an enclosure for the plurality of battery cells.

Stabilizer bar bushing assembly having brackets integrated with rubbers and stabilizer bar assembly using the same

Abstract: A stabilizer bar bushing assembly is provided, in which even though it is exposed to heat of high temperature for a long time period the bracket is not dislocated from the rubber because the bracket is attached to the rubber integrally. The stabilizer bar bushing assembly comprises: an upper body including an upper rubber formed with a first concave groove and an upper bracket enclosing an outer surface of the upper rubber and bonded integrally to the upper rubber; a lower body including a lower rubber formed with a second concave groove and a lower bracket enclosing an outer circumferential surface of the lower rubber and bonded integrally to the lower rubber; and a coupling means for coupling the upper bracket and the lower bracket together in a state of installing the upper body and the lower body on the stabilizer bar.

Shell and manufacturing method therefor and mobile terminal

Abstract: The invention relates to a shell and a manufacturing method therefor and a mobile terminal. The shell comprises a main body part made from a glass material and an edge part made from a glass material;the main body part comprises an outer surface and an inner surface arranged oppositely; the edge part is arranged on the periphery of the main body part and is integrally formed with the main body part; the edge part has an inner wall and an outer wall arranged oppositely; a groove is formed by the inner wall and the inner surface in a surrounding manner; and the inner wall and the inner surfaceare perpendicular to each other. According to the mobile terminal and the shell thereof, the main body part and the edge part of the shell are both made from the glass material, and the inner surfaceof the main body part and the inner wall of the edge part are perpendicular to each other; by virtue of the main body part and the epitaxial part made from the glass material, the shell has the smoothand cool feeling as glass; and by virtue of the mutually perpendicular inner surface and the inner wall, an appearance capable of generating mirror reflection on light rays to beautify the shell canbe formed.

Fluid heating device and manufacturing method for same

Abstract: A fluid heating device (100) in which a heater (21) heats a fluid comprises a heating unit (22) that is formed so as to cover the periphery of the heater (21), and a supporting body (71) that is integrally cast with the heating unit (22) by the heating unit (22) being formed while the heater (21) is supported in a mold (60) for forming the heating unit (22).

Integrated multiple valve manifold

Abstract: The purpose of the present invention is to obtain an integrated multiple valve manifold that has been made smaller and lighter by integrally incorporating multiple valve mechanisms in a single manifold. In this integrated multiple valve manifold, a single manifold (2) formed from an extruded material, through the interior of which a fluid supply hole (4) and fluid discharge holes (5A, 5B) pass, is provided with: multiple valve holes (6) that are each in communication with the fluid supply hole (4) and the fluid discharge holes (5A, 5B) by directly intersecting both the fluid supply hole (4) and the fluid discharge holes (5A, 5B); output ports (7A, 7B) formed so as to be individually in communication with said valve holes (6); spools (15) that are inserted inside said valve holes (6) so as to slide freely; and electromagnetic pilot valves (21) individually fitted on one end or both ends of each of the valve holes (6).

Semiconductor device manufacturing method

Abstract: PROBLEM TO BE SOLVED: To provide a semiconductor device manufacturing method which makes it possible to transport a semiconductor device successfully even when the semiconductor device is downsized and reduced in weight.SOLUTION: In a semiconductor device manufacturing method, when a plurality of semiconductor elements 1 are mounted on a base material 3 and integrally encapsulated, a suction hole 7 for suctioning a film 9 arranged on an inner surface side of a mold is arranged in a semiconductor device formation region and the film is caused to be adsorbed to the suction hole and semiconductor elements each mounted on the substrate in a state where the film deforms to a convex shape are resin encapsulated. Accordingly, projection resin parts are integrally formed on a surface of an encapsulation resin part. The projection resin parts improves separability in a transportation process by a suction collet even when the semiconductor device is reduced in weight.SELECTED DRAWING: Figure 1

Process for integrally assembling multilayer steel anchor beams of main towers of cable-stayed bridges

Abstract: The invention relates to a process for integrally assembling multilayer steel anchor beams of main towers of cable-stayed bridges. The process includes integrally assembling the multilayer steel anchor beams in factories; secondarily pre-assembling the multilayer steel anchor beams under the matching effects of positioning connecting plates. The process has the advantages that the multilayer steelanchor beams are integrally assembled in the factories, accordingly, the time can be saved during hoisting and general assembling, the process can be carried out under safe working conditions, and the field general assembling mounting precision can be guaranteed against being affected by mounting environments such as monsoon on sea surfaces; the multilayer steel anchor beams only need to be locked by high-strength bolts and accordingly can be easily and safely hoisted; problems of general assembling in the factories can be timely discovered and timely solved, accordingly, the inconvenience infield modification can be prevented, and workload can be reduced.

Antenna and radiating element with same

Abstract: The invention relates to an antenna and a radiating element with the same. The radiating element includes a nonmetal support integrally formed, a metal circuit layer integrally formed, a feedback network ground layer and a radiator. The nonmetal support and the metal circuit layer form a feedback structure and feedback network integrally formed. No weld section occurs between a feedback network dielectric layer and a feedback structure dielectric layer or between the feedback network circuit layer and a feedback structure circuit layer. During use, welding inner and outer conductors of a coaxial feeder separately is only required. Therefore, the quantity of weld spots in the antenna and the radiating element is significantly reduced, excessive loss and intermodulation hazard increase are avoided, and the antenna above is given better uniformity.

Magnetostrictive torque sensor

Abstract: PROBLEM TO BE SOLVED: To provide a magnetostrictive torque sensor whose length of the axial direction is shortened and to allow the temperature change, the magnetization and the magnetization noise of a rotation axis to be strengthened.SOLUTION: A magnetostrictive torque sensor 10 is provided with a rotation axis 2. The rotation axis 2 is provided in series with a first alloy film 31 and a second alloy film 32 by the plating treatment in the longitudinal direction of the rotation axis 2 on the outer peripheral surface in the radial direction. The outside of the rotation axis 2 is provided with a ring-shaped stator 4 coaxially with this rotation axis. The ring-shaped stator 4 includes: a first stator core 45 facing the first alloy film 31 and a second stator core 46 facing the second alloy film 32. The ring-shaped stator 4 and the rotation axis 2 are stored in a housing 5. The ring-shaped stator 4 is constituted such that the first stator core 45 and the second stator core 46 are integrally formed by laminating magneto-electric steel plates.SELECTED DRAWING: Figure 1

Agricultural waste compression treatment device

Abstract: The invention discloses an agricultural waste compression treatment device. The agricultural waste compression treatment device comprises a crushing tank, a forming barrel and a collection frame. Theoutput end of a material guide pipe is located between an upper pressing plate and a lower pressing plate which are located in the forming barrel. The top of the upper pressing plate is fixedly mounted at the bottom of a telescopic rod of a first hydraulic cylinder. The bottom of the lower pressing plate is fixedly mounted at the top of a telescopic rod of a second hydraulic cylinder. The size ofa first groove is equal to that of the lower pressing plate, and the depth of the first groove is equal to the thickness of the lower pressing plate. A pushing plate is arranged in a second groove. One side of the pushing plate is fixedly mounted at the tail end of a telescopic rod of a third hydraulic rod. A discharging port is formed in the side, away from the second groove, of the forming barrel. The collection frame is integrally formed on the outer wall of the side, close to the discharging port, of the forming barrel. According to the agricultural waste compression treatment device, in the discharging process, the lower pressing plate retracts into the first groove, the upper surface of the lower pressing plate is flush with the bottom of the discharging port, thus, the pushing platecan push formed blocky waste into the collection frame conveniently, and waste discharging is greatly facilitated.

Battery monitoring unit

Abstract: A battery monitoring unit includes a plurality of voltage detection lines, a flexible printed circuit board extending in a stuck direction of single batteries, an electronic circuit connected to one end portions of the plurality of the voltage detection lines so as to detect voltage of each of the single batteries and mounted on the flexible printed circuit board, a plurality of busbar fixing portions formed integrally with the flexible printed circuit board and to which the plurality of the busbars are fixed respectively, and communication lines disposed in the flexible printed circuit board so as to connect between the electronic circuit and a battery ECU.

Sealable, penetrable interface and methods of making and using same

Abstract: A penetrable interface configured to separate two or more spaces can include an elastomeric seal having a first segment and a second segment. A portion of the second segment can be integrally formed with a portion of the first segment. The first and second segments can create a sealing engagement therebetween in the absence of an applied force on the second segment. The first and second segments can be distorted out of sealing engagement when subjected to the applied force on the second segment.