54 results about "Bending beam" patented technology

The invention provides a coupler force calibration method and device, and the method comprises the steps: obtaining a three-point bending beam model which is used for representing a beam structure formed by the direct connection of a coupling end of a first coupler and a coupling end of a second coupler in a coupling state, and simplifying the tail part of the first coupler into a clamped constraint, the tail of the second car coupler is simplified to be clamped constraint, and the clamped constraint limits the vertical displacement and the rotation angle of the tail of the corresponding car coupler at the same time; applying a vertical load at a preset position on the first car coupler; the bearing reaction force borne by the tail of the target car coupler under the action of the vertical load is determined, so that the calibration relation between the vertical load and the bearing reaction force of the tail of the target car coupler is constructed, and the bearing reaction force of the tail of the target car coupler is the vertical force borne by the tail of the target car coupler and transmitted at the preset position on the first car coupler; the target coupler is one of the first coupler and the second coupler. According to the invention, the accuracy of vertical load transmission calculation is improved.

The utility model provides a kind of for bogie's lower bending beam and straddle type bogie frame, the lower bending beam for bogie includes: left vertical plate and right vertical plate;Lower bending beam upper cover plate;Lower bending beam lower cover plate;First sealing plate, the first sealing plate with the horizontal upper cover, horizontal lower cover, left vertical plate and right vertical plate are connected;Air chamber muscle plate, the air chamber muscle plate with the inclined lower cover, left vertical plate and right vertical plate are connected;Second sealing plate, the second sealing plate with the inclined upper cover, air chamber muscle plate, left vertical plate and right vertical plate are connected;The left vertical plate, right vertical plate, lower bending beam upper cover plate, lower bending beam lower cover plate, first sealing plate, air chamber muscle plate and second sealing plate are enclosed to form air chamber.The lower bending beam for bogie of the utility model, sets up second sealing plate and air chamber muscle plate to replace original baffle, while guaranteeing structural strength, reduce manufacturing difficulty, realize 100% detection of air chamber all welds.

The application provides a straddle type bogie frame and a straddle type monorail vehicle, the straddle type bogie frame comprising a combined beam and a down bending beam, the combined beam comprising a high side beam, a low side beam, a traction beam connecting the high side beam and the low side beam, and an end beam connecting the high side beam and the low side beam, the number of the down bending beams being two, and the two down bending beams being connected with the high side beam and the low side beam respectively, and the combined beam and the down bending beam being connected in a T joint fillet welding and V type butt joint welding mode. The straddle type bogie frame and the straddle type monorail vehicle are formed by combining and welding the combined beam and the down bending beam formed in a split mode, the air chamber is independently formed in the down bending beam, the low side beam and the high side beam are decoupled, the structure is better in stress bearing, and the weld accessibility is better; the combined beam serves as a base, and when the combined beam is combined with the down bending beam, the overall welding deformation is small, the combined beam is not prone to twisting, and the size after welding is easy to control.

The invention provides a multi-curvature modeling glass curtain wall connecting structure and a construction method, and belongs to the technical field of glass curtain wall connecting structures. The multi-curvature modeling glass curtain wall connecting structure comprises a plurality of layers of curved glass sets, a plurality of stand columns, a plurality of supporting plates and a fixing assembly. The construction method of the connecting structure comprises the steps that S1, the stand columns are installed; s2, a supporting assembly is installed; s3, welding a supporting plate; s4, a limiting square pipe is welded; s5, mounting a base; s6, curved glass is installed, and a pressing plate is installed to fix the glass; and S7, a decorative cover plate is installed. According to the glass curtain wall, the gravity load of the glass is directly transmitted to the stand column through the supporting plate, a traditional cross beam structure is replaced, the permeability, continuity and integrity of the glass curtain wall are improved, the integral effect that multiple pieces of glass look like a whole piece can be achieved, the situation that a single piece of glass is oversized in specification is avoided, safety is improved, and the glass hoisting difficulty is reduced. And an arc cross beam does not need to be machined, errors caused by the arc cross beam are avoided, and cost is reduced.

The invention discloses a self-driven bistable state intelligent bracelet. The bracelet comprises a bracelet shell, and the bracelet shell is of a symmetrical nested structure formed by nesting an outer ring, an inner lantern ring, an outer fixing ring and an inner fixing ring; a flexible negative stiffness bending beam is arranged between the outer fixing ring and the inner fixing ring, and the two ends of the flexible negative stiffness bending beam are hinged to the outer fixing ring and the inner fixing ring respectively. The two ends of the outer fixing ring are each provided with a bistable power generation module, and the two bistable power generation modules are arranged in a mirror image mode. The bistable structure formed by the flexible negative stiffness bending beams can convert low-frequency and irregular mechanical energy generated by human body movement into large-amplitude transition movement, so that the friction nanometer power generation module is efficiently driven, the energy conversion efficiency under the low-frequency excitation condition is remarkably improved, the endurance problem of the bracelet is fundamentally solved, and the safety of the bracelet is improved. The method is suitable for long-term health monitoring, motion tracking and other scenes.

The invention relates to the technical field of medical instruments, in particular to a supporting skeleton, a covered stent mechanism and a covered stent conveying and releasing system.The supporting skeleton comprises a supporting ring and a bent beam which are connected in sequence, and the bent beam is arranged at one end of the supporting ring in the central axis direction of the supporting ring and bent towards the inner side. Therefore, the support skeleton provided by the invention is provided with the bent beam which can be used as a guide rail, the support ring is guided into the outer sheath tube, and the forward thrust of the outer sheath tube is converted into the radial pressing and gripping force and the axial forward thrust to the covered stent, so that the covered stent is collected into the sheath tube of a conveyor section by section, and when the anchoring position and the window alignment are inaccurate, the covered stent can be accurately positioned. The covered stent can be recycled into the sheath tube of the conveyor, the position and the angle of the covered stent can be adjusted, the covered stent is released again, the operation is repeated until the position of the stent is satisfactory, and the application difficulty and risk of the intracavity repair technology are reduced.

Revealed is a microelectromechanical (MEMS) oscillator, comprising: a first component; a movable component which is mounted so that it can move relative to the first component, at least in a first direction; wherein the movable component assumes a stop position relative to the first component when the deflection is sufficiently large, wherein the movable component touches the first component at least at a first stop point in the stop position; at least one actuator component, which is designed as a bending beam clamped at both ends with a beam longitudinal axis running perpendicular to the first direction, wherein the at least one actuator component is designed to selectively assume an undeformed configuration as well as a deformed configuration, in which the at least one actuator component is deflected at least partially perpendicular to its beam longitudinal axis, depending on an activation; wherein at least one actuator component is designed to transmit a force between the first component and the movable component in the deformed configuration when the movable component is in the stop position.

Forklift truck with a force measuring device, wherein the force measuring device is designed as a bending force measuring device (2) and additionally - at least partially - as a chassis component, characterized in that the bending force measuring device (2) has at least one elastically bendable element, wherein the bendable element is designed as a bending beam, wherein the bending beam forms a measuring section (2a, 2b, 2c, 2d) on which .Deformations caused by bending loads are measurable, wherein the bending force measuring device (2) is designed as a support body with integrally formed pendulum pins (P1, P2) for suspension on a vehicle, wherein a continuous horizontal transverse recess (Q1; Q2) is incorporated adjacent to each pendulum pin (P1; P2), which is bounded above and below by a measuring section (2a; 2b; 2c; 2d), wherein the bending force measuring device (2) has at least one measuring sensor (M1; M2; M3; M4) with which a bending of the at least one elastically bendable element can be measured, and the at least one measuring sensor (M1; M2; M3; M4) is arranged in the transverse recess (Q1, Q2) of the bending force measuring device (2).

The invention discloses a design method of a lithium niobate film phase modulator with a high polarization extinction ratio, and belongs to the field of integrated optical gyroscopes. The method comprises the following steps: firstly, designing a lithium niobate film phase modulator comprising a silicon substrate, a silicon dioxide cladding, a lithium niobate film optical waveguide core layer and a modulation electrode; the double-layer conical gradient waveguide meeting the TE mode light fundamental mode transmission condition couples light into a chip, and polarization of a transmittable light mode is limited by designing the width and the thickness of the waveguide; the effective refractive index, the bending radius, the waveguide width and the center distance are designed for the directional coupling unit, and polarization is generated through phase matching polarization beam splitting; the multimode interference coupler is polarized by designing the length and width of a multimode interference region; the bending beam splitting unit is polarized by designing bending radius leakage; finally, through an electric field generated by a modulation electrode, the light is subjected to phase change, and two beams of light with phase difference are output; according to the invention, a high polarization extinction ratio is realized on the basis of a basic beam splitting modulation function.

The application provides a programmable energy barrier fast-response bistable mechanical gripper and a use method, and belongs to the technical field of robots. In the gripper, rigid clamping jaws are fixed to the side of a fixed clamping plate, the fixed clamping plate is rotatably installed on the upper end of a sliding block around a pin shaft, and a flexible bending beam is arranged in the gap of the fixed clamping plate. The sliding block is fixed to a rack, and the rack is engaged with a gear in a box. When a driving motor is driven, a rocker arm pushes the sliding block to move along a guide shaft, and through the transmission conversion of the rack-gear-rack, reverse displacement of the opposite sliding block is generated, reverse movement of the two sliding blocks is realized, the fixed clamping plate rotates around the shaft, and the flexible bending beam is bent under pressure. The process can adjust the threshold of the energy barrier of the bistable structure and change the trigger condition. After being impacted by an object, the gripper can quickly jump and actively increase the holding force. The application has the advantages of adjustable energy barrier, simple structure, fast response, low cost and the like, and solves the problem that the existing mechanical gripper cannot simultaneously realize soft trigger and stable clamping.

The application relates to a magnetic-force-electric coupling energy collector and method based on an asymmetric torsional mode, and belongs to the technical field of energy collection. The application comprises a piezoelectric sheet, an asymmetric bending beam structure, a mass block and a fixing screw rod; the polarization direction of the piezoelectric sheet is arranged along the thickness direction, and electrode coatings are arranged on both sides of the piezoelectric sheet along the thickness direction; the electrode coatings on both sides are defined as an adhesive electrode surface and a lead-out electrode surface respectively; the asymmetric bending beam structure comprises a main beam, a long limb and a short limb arranged in an integrated structure; the middle part of the main beam is provided with a fixing hole; the adhesive electrode surface is fixedly connected with the main beam through epoxy resin and is distributed on the left and right sides of the fixing hole; the lead-out electrode surface leads out electric signals through a wire; the mass block is fixed on the asymmetric bending beam structure through magnetic force; one end of the fixing screw rod is connected with the fixing hole; and the fixing screw rod is installed on a rigid base.

The invention discloses a small-size low-rigidity iron-gallium magnetostriction driving module and an underwater acoustic transducer. The iron-gallium magnetostriction driving module comprises an iron-gallium bent beam, a driving coil, a permanent magnet and a high-permeability transition block, the iron-gallium bent beam comprises a main beam, an auxiliary beam and fixed end blocks which are integrated, the main beam and the auxiliary beam are arranged in parallel, the two ends of the main beam and the two ends of the auxiliary beam are connected through the fixed end blocks, the fixed end blocks downwards extend out of beam feet, and the beam feet exceed the lower edge of the auxiliary beam and serve as the open end and the tail end of a magnetic induction line of a conduction bias magnetic field. A boss is upwards arranged in the middle of the main beam, and a connecting hole is reserved in the middle of the boss; the driving coil comprises main beam coils and auxiliary beam coils, the main beam coils are wound on the main beams on the two sides of the boss respectively, and the auxiliary beam coils are wound on the auxiliary beams. According to the driving module, through the low-rigidity bending mode design and the dynamic and static separated magnetic circuit design, the double breakthrough that the resonant frequency of the underwater acoustic transducer driving part body is greatly reduced and the height size is synchronously reduced is achieved.

1. The name of the design product: the basket of goods in the car with the bending beam (including the mobile phone box). 2. The use of the design product: for placing goods. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention discloses a method for predicting dynamic characteristics of a drilling riser in an ultra-deep water free standing mode, which comprises the following steps of: establishing a two-dimensional coordinate system by taking a submarine blowout preventer as an original point, and establishing a fluid infinitesimal and riser infinitesimal mechanical equilibrium equation according to the Alembert principle; in consideration of environmental loads generated by waves, ocean currents and wind and buoyancy generated by a buoyancy barrel on the top of the riser, a classical bent beam theory is adopted to deduce a transverse differential equation of the riser in the ultra-deep water free standing mode, boundary conditions of a dynamic behavior prediction model of the riser in the ultra-deep water free standing mode are determined, and a finite element method is adopted to predict the dynamic behavior of the riser in the ultra-deep water free standing mode. An equation is solved by combining a Newmark-beta integral method, a dynamic behavior prediction model of the marine riser in the ultra-deep water free standing mode is finally established, and the dynamic characteristic behavior of the marine riser in the mode can be clearly predicted.

The embodiment of the utility model provides a connecting seat of an aerial work platform, and relates to the technical field of aerial work. The connecting seat of the aerial work platform comprises a swing cylinder mounting part, a transition connecting part and a hanging basket mounting part which are sequentially arranged, the transition connecting part is used for supporting a hanging basket together with the hanging basket mounting part, and the transition connecting part comprises a connecting beam which comprises a first bent plate; the first bent plate comprises a first supporting plate and a second supporting plate which are connected at an included angle and integrally formed, the second supporting plate is used for abutting against the bottom of the hanging basket and is connected with the hanging basket mounting part, and the connecting beam is a box type bent beam. The box-type connecting beam can improve the bending resistance of the connecting beam and can also improve the torsional rigidity, and the first supporting plate and the second supporting plate are integrally formed, so that the strength of the first bending plate is ensured, and the stability of the hanging basket connected with the connecting seat during high-altitude operation can be ensured.

The utility model belongs to the technical field of bridge girder erection machines, and provides a rail beam displacement integrated bridge girder erection machine middle support which comprises a middle supporting leg, a movable hanging beam and a bracket, the middle supporting leg is located above a transverse rail, the middle supporting leg comprises a bent beam and a movable hanging frame, the middle of the bent beam is concave downwards to be close to the top of the transverse rail, and the movable hanging frame is arranged on the middle supporting leg. The two ends of the camber beam are lifted upwards, a space for installing the electric walking wheels is formed between the two ends of the camber beam and the transverse rails below the camber beam, and the two movable hanging brackets are arranged above the two ends of the camber beam correspondingly so that the two movable hanging brackets can be hung on the corresponding longitudinal main beams, and the movable hanging brackets can move in the length direction of the longitudinal main beams; and the movable hanging beam is transversely arranged right above the middle supporting leg. Integrated synchronous displacement of the middle supporting leg and the transverse rail can be achieved, the operation process is simple and convenient, working efficiency is high, deviation of the position of the transverse rail after the transverse rail is lowered does not need to be worried, the correct transverse moving direction of the middle supporting leg is guaranteed, and working quality is high.

The present invention relates to an arrangement for detecting a bearing force of a bottom bracket of an electric bicycle, comprising a bottom bracket, a bearing receptacle which at least partially surrounds the bottom bracket in a ring-like manner, a bearing force sensor with at least one first sensor element and at least one second sensor element, and a detection unit, wherein a deformable bending beam is formed on the bearing receptacle, wherein the first sensor element is attached to the bending beam, wherein the second sensor element is attached to a stationary part of the bearing receptacle, wherein the first sensor element and the second sensor element are connected to form a first measuring bridge, and wherein the detection unit is configured to detect a bearing force at the bottom bracket based on signals detected by means of the measuring bridge.

The utility model discloses a beam pressing device. The beam pressing device comprises a movable platform, a beam pressing seat, a beam clamping assembly and a beam bending assembly. The beam pressing seat is arranged on the movable platform; the beam clamping assembly is arranged on the beam pressing base and used for clamping a beam-shaped structure. The beam bending assembly is arranged on the beam pressing base and used for bending a beam-shaped structure. The movable platform at least drives the beam pressing base to move in the Z-axis direction. The beam clamping assembly is driven by the moving platform to align with the beam-shaped structure and clamp the beam-shaped structure. The camber beam assembly abuts against the clamped beam-shaped structure, and the camber beam assembly applies pressure to the beam-shaped structure, so that the beam-shaped structure is kept in a bent state. And the movable platform drives the beam pressing seat to move in the Z-axis direction, so that the beam-shaped structure is fed into a proper position in the heater. The movable platform, the beam pressing base, the beam clamping assembly and the beam bending assembly are matched with one another, so that automatic assembly of the beam-shaped structure is achieved, and the production cost can be reduced or optimized.

The invention relates to a bending installation (1) comprising: a press brake (2) for carrying out a bending operation on a workpiece to be bent (W); and a handling robot (3) for feeding the workpiece to be bent (W) to the press brake (2) and removing the workpiece to be bent (W) from the press brake (2), wherein the press brake (2) has a longitudinal axis (L), a transverse axis (Q), and a vertical axis (H) which define a Cartesian coordinate system, wherein the press brake (2) comprises a stationary lower bending beam (4) for receiving a lower tool and a movable upper bending beam (5) for receiving an upper tool, wherein the upper bending beam (5) is movable relative to the lower bending beam (4) within a bending plane (BE) defined by the longitudinal axis (L) and the vertical axis (H), wherein the handling robot (3) is designed as an articulated-arm robot and is arranged at a distance from the bending plane (BE), as viewed along the transverse axis (Q), wherein the handling robot (3) is mounted on a mounting console (6) which is configured and arranged relative to the press brake (2) such that a main axis (A1) of the handling robot (3) is inclined at an inclination angle (α, β) relative to the vertical axis (H) of the press brake (2).

This invention relates to the field of underwater acoustic transducers, specifically to a low-frequency directional bending transducer with a concave-convex beam type, comprising: an outwardly convex bending beam (1), an inwardly concave bending beam (2), a top wall, a bottom wall, and a vibrator assembly (3); the outwardly convex bending beam (1) and the inwardly concave bending beam (2) are arranged opposite each other and have the same height, with their tops connected to the top wall and their bottoms connected to the bottom wall, together forming an asymmetric radiation shell; the thickness or radius of curvature of the convex surface of the outwardly convex bending beam (1) and the concave surface of the inwardly concave bending beam (2) are different, thereby adjusting the modal radiation component ratio and coupling strength of the transducer by adjusting the thickness or radius of curvature of the convex surface and / or the concave surface. This invention utilizes the asymmetry of the concave-convex shell to structurally solve the excitation and coupling of the transducer's monopole mode and dipole mode, which is beneficial for achieving low-frequency cardioid directivity.

A piezoelectric device comprises at least a base and a bending beam. The bending beam has a first end section anchored by the base and a second end section not supported by the base. The bending beam includes at least one piezoelectric element and a reinforcing layer. The piezoelectric element comprises a first electrode, a piezoelectric layer, and a second electrode. The reinforcing layer supports the piezoelectric element. The reinforcing layer has a Poisson's ratio less than 0.2 or greater than 0.4.

The embodiment of the invention provides a probe and a probe card, the probe is used for testing a to-be-tested object, and the probe comprises a first probe head section located at the end part of the probe and contacted with a contact pad of the to-be-tested object when the to-be-tested object is tested; the second probe head section is positioned at the other end part of the probe and is in contact with a probe pad of the signal adapter plate when the to-be-detected object is tested, so that the probe establishes an electric signal transmission channel between the to-be-detected object and the signal adapter plate; the bending beam section is connected between the first needle head section and the second needle head section and provided with more than two open grooves which are not connected with each other in the length direction, and when an object to be detected is tested, the first needle head section abuts against the contact pad to enable the bending beam section to deform and bend; the needle pressure borne by the first needle head section is determined by adjusting the sum of the lengths of all the open grooves, the thicknesses of the two side walls of the open grooves and the length of the bent beam section; according to the embodiment of the invention, the contact force between the probe and the to-be-detected object / signal adapter plate can be adjusted, and the reliability design and the service life design of the probe are facilitated.

The invention discloses a two-dimensional scanning micromirror resistant to high-strength impact. The two-dimensional scanning micromirror comprises a frame, a driving unit, a slow shaft, a fast shaft, a rotating mirror and a damper. The driving unit is arranged in the frame; the left side and the right side of the driving unit are rotationally connected with the frames on the two sides of the driving unit through two slow shafts which are arranged in a multi-time bending mode. The rotating mirror is arranged at the center position in the driving unit, and the upper side and the lower side of the rotating mirror are rotationally connected with the driving beams of the driving unit on the upper side and the lower side of the rotating mirror through two vertically-arranged fast shafts; the dampers are arranged on the frame and correspond to the four corners of the driving unit. Through the design of the bending beam slow axis and the frame damper, the two-dimensional scanning micromirror can achieve large-angle FOV, meanwhile, the two-dimensional scanning micromirror resists 1500G high-strength impact in the + / -x direction, the + / -y direction and the + / -z direction, an original packaging structure does not need to be changed, packaging is easy, cost is low, the two-dimensional scanning micromirror is suitable for multi-scene application, defects in the prior art are overcome, and the two-dimensional scanning micromirror has high application value.

This invention discloses a method for constructing a discrete element model (DEM) of pavement structure fracture performance based on the CZM (Concentrated Zymmetric Model), comprising the following steps: constructing a discrete particle model of the pavement structure using a DEM; classifying particle clusters in the discrete particle model and setting material properties; determining the contact type and contact model between the boundaries of different types of particle clusters; for the bilinear cohesive model, introducing two parameters—the bond strength of the pavement structure and the ratio of the slope of the descending segment to the slope of the ascending segment in the bilinear cohesive model curve—to construct a new bilinear cohesive model; rewriting the code and importing it into the DEM, inputting the two parameters to complete the construction of the CZM-based DEM of pavement structure fracture performance; using the DEM for simulation and conducting real experiments simultaneously, comparing the simulated data with the real experimental data to verify the accuracy of the DEM. This invention fills the gap in applying the DEM based on the cohesive model to three-point bending beam tests of pavement structures.

The utility model discloses a stable bending forming reticulated shell structure which comprises a bending structure body, a right fixing structure arranged on the right side of the bending structure body and a left fixing structure arranged on the left side of the bending structure body, and the bending structure body comprises an upper connecting beam, a connecting bottom frame, a connecting main shaft, a reinforcing rib and a bending beam. A plurality of adjusting connecting beams, a plurality of connecting screw ring balls and a plurality of fixing pieces are arranged at the connecting positions of the bent structure body, the right fixing structure and the left fixing structure correspondingly, even if it is found that the spatial layout is unreasonable or the appearance does not conform to expectation after construction is completed, an operator can also easily adjust, rebuilding is not needed, and the construction efficiency is improved. The precision and efficiency of space planning are greatly improved, the structure can be adjusted to an ideal shape according to actual needs, personalized design requirements are met, the architectural aesthetic value is enhanced, the system can quickly respond to design changes or field emergencies, the cost is saved, and the construction period is shortened.

1. The name of the design product: front windshield of electric tricycle (No. 2 curved beam). 2. The use of the design product: for the front windshield of electric tricycle. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention relates to the technical field of drilling and boring rod vibration suppression, in particular to a drilling and boring rod vibration suppression device based on a variable stiffness nonlinear energy trap. In order to solve the problem that vibration suppression of an existing nonlinear energy trap has limitation, the drilling and boring rod vibration suppression device based on the variable-rigidity nonlinear energy trap is provided and comprises a connecting base and a variable-rigidity NES mechanism. An annular groove is formed in the connecting base, the variable-rigidity NES mechanism comprises two tiles, a flexible hinge embedded with a piezoelectric ceramic stack is arranged between the two tiles, and a plurality of bent beams are axially arranged on each tile. The device is reasonable in design, simple in structure and small in occupied space, and a thought and a method are provided for reducing vibration of the deep hole drilling and boring rod and improving the workpiece machining quality.

An on-chip accelerometer based on integrated optical waveguide, the lens optical fiber and mechanical structure assembly are compounded, and the interferometric optical fiber sensor based on spring-mass push-pull structure is formed. Wherein, the spring cantilever beam increases the intermediate vertical beam and the semicircular small bending beam on the basis of the serpentine folding beam, connects the external frame and the mass, and jointly constitutes the spring-mass oscillator structure. The application effectively reduces the cross-axis sensitivity of the accelerometer and suppresses the cross-axis crosstalk. The mass contains two convex structures, the top surface of which is used as a reflecting surface, and a layer of metal film is sputtered during processing to increase the reflectivity. The air cavity formed by the two mode spot converters and the mass forms a balanced interferometer structure, which adopts the design of Michelson interferometer combined with push-pull structure, further improves the sensitivity, can be compatible with various demodulation schemes, and effectively suppresses the common mode noise. The application directly etches the integrated optical waveguide on the chip as the sensing optical path, which effectively suppresses the polarization fading problem while reducing the package size. The highly symmetrical design of the sensing optical path makes the noise characteristics of the two arms of the sensor nearly consistent, greatly reduces the environmental noise during interference, and improves the signal-to-noise ratio. The accelerometer structure is compact, the manufacturing process is simple, and is suitable for aerospace and other scenes with requirements of light weight and high performance.

The invention provides a straddle type monorail bogie frame and a straddle type monorail vehicle, and relates to the technical field of railway vehicles, the straddle type monorail bogie frame comprises a composite beam, a lower camber beam, an upper torsion bar seat, a lower torsion bar seat and a vertical shock absorber seat; the composite beam, the lower camber beam, the upper torsion bar seat, the lower torsion bar seat and the vertical shock absorber seat are integrally cast; the two lower camber beams are symmetrically arranged below the composite beam in the advancing direction of the bogie; the lower camber beam is welded on the composite beam through a circumferential weld; the two upper torsion bar seats and the two lower torsion bar seats are symmetrically arranged on the two sides of the combined beam in the advancing direction of the bogie. The two vertical shock absorber seats are symmetrically arranged on the two lower camber beams in the advancing direction of the bogie. The structural strength and reliability of the straddle type monorail bogie frame can be improved.

A vehicle bending beam according to the invention comprises a base body 2 made of hardenable steel and a reinforcing plate 3 made of hardenable steel joined to the base body 2. The base body 2 and the reinforcing plate 3 are formed together, the base body 2 having a longitudinal section 4 which has two legs 7 and a web 8 connecting the legs 7. The reinforcing plate 3 is arranged in the longitudinal section 4 and abuts at least one leg-side edge section 10 against a leg 7. According to the invention, the edge section 10 of the reinforcing plate 3 extends along a step 13 formed in the leg 7. This design improves the forming process and the optional in-mold hardening.