735results about How to "Increase stiffness" patented technology

The application discloses a track with adjustable vertical linear rail beam and a construction method thereof. The track comprises two parallel steel beams, and the top of the steel beam is provided with an adjustable low beam. The adjustable low beam is a vertically adjustable beam. The opposite side walls of the adjustable low beam are guide walls, and the guide walls are in contact with guide wheels of a cloud bus rubber-tyred tramcar. The construction method comprises the following steps: processing the steel beam; marking the threaded steel bolt; welding the threaded sleeve; welding the top steel plate and the threaded steel bolt; adjusting the position of the steel beam; welding the steel beam and the threaded steel bolt; hoisting; linear adjustment of the two-way steel mesh construction; installation and reinforcement of the outer side formwork; installation and reinforcement of the inner side formwork; and installation and reinforcement of the inner side formwork. The application can adjust the vertical linear rail beam body, reduces the difficulty of linear rail beam body adjustment before operation, is convenient to construct, has low cost, increases the overall rigidity of the rail beam, and improves the train driving comfort.

The utility model belongs to the technical field of plasma rotating electrode powder manufacturing equipment, and relates to a vacuum dynamic sealing structure of a plasma gun for powder manufacturing, which comprises an external powder blocking module and a dynamic sealing module, the external powder blocking module consists of a first powder blocking plate, a powder blocking ring and an insulating powder blocking plate, the first powder blocking plate is fixed at the top of a plasma gun body to form an arc-shaped shielding surface, and the dynamic sealing module is fixed at the top of the plasma gun body. The powder retaining ring coaxially sleeves the positive electrode of the plasma gun body and forms an annular gap type powder blocking structure with the insulating powder retaining plate; the dynamic sealing module is sequentially provided with a dynamic sealing installation metal cylinder, an insulating cylinder and a sealing assembly from outside to inside in the radial direction of the plasma gun body, the insulating cylinder and the dynamic sealing installation metal cylinder form a step-shaped sealing structure, and vacuum sealing and electrical isolation are achieved between the dynamic sealing module and the external powder blocking module through bakelite and an O-shaped sealing ring. The vacuum dynamic sealing structure provided by the utility model has the advantages of powder isolation, reliable sealing, no burning loss short circuit and no need of vacuum grease auxiliary sealing lubrication.

A panel pouring slip form construction method, comprising the following steps: 1) bottom mold installation; 2) concrete pouring; 3) traction motor traction slip form panel; 4) the first pouring block is vibrated and troweled; 5) traction mold advances, forming a secondary pouring area; 6) repeating steps 2) to 5), completing the secondary pouring operation; 7) repeating steps 2) to 6), completing the slope protection slip form pouring construction. The application adopts the above method, which can solve the problems of poor stability of the slip form, influence of the concrete floating force on the construction and complicated control of the traction mechanism control system in the prior art, and realizes more convenient and stable panel pouring slip form construction.

The invention discloses a bidirectional sloping bench staggered combined sandwich structure which comprises an upper panel, a lower panel and a combined core arranged between the upper panel and the lower panel. The combined core body is formed by assembling an upper core body and a lower core body; the upper core body comprises an upper core plate, a plurality of inclined tables and a plurality of transverse clamping grooves, the inclined tables and the transverse clamping grooves are arranged on the upper core plate, and the inclined tables and the transverse clamping grooves are arranged on the upper core plate, inclined in the transverse direction and arranged in a staggered mode in the inclined direction. The lower core body comprises a lower core plate, a plurality of inclined tables and a plurality of longitudinal clamping grooves, the free end of the inclined table, inclining in the transverse direction, of the upper core body is connected with the longitudinal clamping groove in the corresponding position of the lower core body in an inserted mode, the inclined table, inclining in the longitudinal direction, of the lower core body is connected with the transverse clamping groove of the upper core body in an inserted mode, and a two-way staggered interlocking structure is formed. According to the invention, multidirectional balanced bearing can be realized while light weight is maintained, the modular plug-in combination design is adopted, so that assembly is facilitated, and the modular plug-in combination design can be flexibly adapted to complex curved surface configurations such as planes and cylinders.

This invention provides a wind-powered propulsion device. One technical solution of this invention provides a wind-powered propulsion device disposed on a moving body, which receives wind to generate propulsion force. The wind-powered propulsion device comprises: a rotating body having a frame portion formed in an annular shape around a rotation axis, and capable of rotating around the rotation axis; and a plurality of blades arranged parallel to an imaginary straight line connecting the two ends of each blade in a direction orthogonal to the rotation axis. The rotating body has a support structure comprising a plurality of supports connected to the frame portion and respectively supporting the plurality of blades.

The utility model relates to the technical fields of rail transit especially, a kind of high-speed rail vehicle porous corrugated modeling composite middle roof;Including surface panel, intermediate layer core material, backboard, the surface panel, the intermediate layer core material, the backboard are formed composite middle roof by composite glue composite;The surface panel is porous aluminum plate structure, is provided with corrugated modeling 1-1, the composite filling area is set in the intermediate layer between the parallel surface area of the surface panel and the backboard, and several groups of the intermediate layer core material are set in the composite filling area, and the area outside the composite filling area on the surface panel is provided with decorative hole and can penetrate the structure of the composite middle roof, meet the original decoration and the function premise of convenient inspection door under, further improve sound insulation and thermal insulation performance, while having better stiffness, can reduce the effect of the component vibration when train operation.

The utility model discloses a reinforcing device for an underneath pass railway turnout zone. The reinforcing device comprises a supporting and splicing assembly, a bottom plate arranged on the supporting and splicing assembly, a lower guide beam installed on the top of the bottom plate and main lower beams symmetrically distributed. The utility model has the beneficial effects that through the supporting and splicing assembly, a stable foundation is provided for the whole device, and soil pressure and vehicle load transmitted from the side surface and the top can be effectively supported; the stability is further enhanced through structures such as a lower guide beam, a main lower beam, a guide beam stand column and a main beam stand column, and the shield top plate and all components work cooperatively, so that the complex stress condition of a railway turnout zone can be better dealt with; the steel structure sub-shield is combined with the reinforced concrete lattice, and the steel structure sub-shield and the reinforced concrete lattice are integrally poured with the frame main body, so that the overall strength and stability of the structure are greatly improved; the rigidity of the reinforced concrete lattice is increased, the reinforced concrete lattice and the frame body form a whole, large external loads can be borne, and the requirement for strict settlement control of a railway turnout zone is met.

The present application relates to the technical field of precision machining, and provides a five-axis vertical milling machine tool and method, the machine tool comprising a bed base, a first movement unit, a cross beam platform, a second movement unit, a third movement unit and a rotary unit; the first movement unit comprises a first slide plate, a first linear drive assembly and two first closed hydrostatic guide rail assemblies arranged on both sides of the first slide plate and in sliding connection with the bed base; the cross beam platform is arranged above the bed base; the second movement unit comprises a second slide plate, a second linear drive assembly and two second closed hydrostatic guide rail assemblies arranged on both sides of the second slide plate and in sliding connection with the cross beam platform; the third movement unit comprises a ram, a third linear motor and a third closed hydrostatic guide rail assembly; the rotary unit comprises first and second rotary shafts supported by hydrostatic bearings; the three movement units adopt closed hydrostatic guide rail assemblies, so that submicron machining precision is achieved, and good dynamic performance and long-term stability are provided.

The invention discloses a multi-layer steel structure connecting frame. The multi-layer steel structure connecting frame sequentially comprises a bottom-layer frame, a top-layer frame and at least one middle-layer frame between the bottom-layer frame and the top-layer frame from bottom to top. The frames comprise stand columns, and every two adjacent stand columns are connected through a cross beam. The adjacent frames are connected up and down through connecting assemblies; the connecting assembly comprises a first connecting piece and a second connecting piece. The first connecting piece comprises a first rectangular frame and a first sleeve. The second connecting piece comprises a second rectangular frame and a second sleeve, and the opening end of the second sleeve is opposite to the opening end of the first sleeve. The connecting rib is connected with the first connecting piece and the second connecting piece. The first connecting piece and the second connecting piece are connected in an anchoring mode through the mutual inserting design of the connecting ribs and the sleeves, so that the connecting ribs and grouting materials are combined more firmly, the strength and stability of the structural connecting portion are improved, and structural potential safety hazards caused by dislocation or looseness of the connecting ribs are avoided.

The invention discloses a novel metal test piece end face polishing and grinding device which comprises a test piece chuck, a pressing device, a straight driven piece, a plane cam, a movable sliding block assembly body, a linear guide rail structure and a movable frame. The test piece chuck comprises a dovetail matching block, a test piece chuck block, a pressing screw and a chuck fixing screw. The pressing device comprises a cover plate, a compression spring, a lifting block, a threaded pin and a rolling bearing; the straight follower comprises a lifting block, an indexing block and a limiting screw. By means of the novel metal polishing and grinding device, the problem that after traditional manual polishing and grinding equipment conducts polishing and grinding, cambered surfaces and fillets appear on the polishing and grinding end face is solved, the yield of metallographic samples and the utilization rate of consumable items such as abrasive paper are increased, a linear one-way polishing and grinding mode is researched, developed and provided, and a novel semi-automatic mechanical polishing and grinding device is designed.

A kind of high-precision four-column sensor, it is related to weighing sensor technical field, a kind of high-precision four-column sensor, from top to bottom include pressure head, steel ball, upper weighing seat, elastomer, lower weighing seat and bottom plate in order, steel ball is located between pressure head and upper weighing seat, and the contact surface of pressure head and upper weighing seat with steel ball is concave cambered surface, elastomer is located between upper weighing seat and lower weighing seat, elastomer is integrally machined with upper weighing seat and lower weighing seat, elastomer quantity is four and is evenly distributed in 2*2 matrix, strain gauge is pasted on elastomer, recess is provided on the top surface of lower weighing seat, recess is located between four elastomers, digital module is provided in recess, and signal line is provided on the side of lower weighing seat.The sensor of the utility model is integrally machined with the whole structure, without any assembly gap, precision is guaranteed by processing, the whole structure has no stress weak point, and the rigidity significantly improves sensor service life.

The invention relates to the technical field of metal pressure processing control, and discloses a rolling system for titanium alloy rod and wire composite production, which comprises a basic rolling unit, a rolling unit and a control unit, the signal synchronous acquisition module is used for acquiring the pressure and displacement of the hydraulic cylinder; the feature extraction and state arbitration module is used for judging a steady-state interval or an unsteady-state interval; the rheological impedance analysis module is used for resolving an instantaneous plastic rheological modulus in an unsteady state interval; high-frequency excitation is actively injected into a steady-state blind area through the micro-disturbance active detection unit, the steady-state rheological modulus is inversed through phase-locked demodulation logic, a sensing blind area caused by natural fluctuation deficiency of a traditional control system in an extremely steady state is avoided, the stability of the system is improved, the stability of the system is improved, and the stability of the system is improved. Full-time-domain accurate matching of rheological properties of the titanium alloy material is achieved, and under the condition that a heat compensation device is not needed in the whole line, the rolling problem of 5.0 mm extremely-small-specification wires and large-coil heavy coiled materials is solved.

This invention discloses a high-stiffness unbonded collaborative loading system and its construction method, belonging to the field of structural engineering testing technology. The system comprises a side-coordinated steel beam positioned on opposite sides of the structure under test; a top-plate loading steel beam, arranged in a cross shape within the side-coordinated steel beam, with its ends connected to the side-coordinated steel beam; the top-plate loading steel beam is a double-layer unbonded sleeve assembly, including an inner square steel tube and an outer circular steel tube sleeved around it, with a preset gap between the inner square steel tube and the outer circular steel tube; and multiple horizontal prestressing tendons arranged around the outer circular steel tube, with their ends connected to the side-coordinated steel beam. This invention employs the aforementioned high-stiffness unbonded collaborative loading system and its construction method, separating the force transmission channel from the fixed interface through a tube-in-tube unbonded design, thus solving the problems of local buckling, deformation coupling, and poor side-coordinated performance in traditional loading schemes during ultra-large tonnage tests.

This utility model belongs to the field of vehicle underbody structure, specifically providing a front-end module of a chassis, a chassis, and a vehicle. The module includes a driver's area and a rest area. The driver's area includes a front upper main longitudinal beam, a left front lower main longitudinal beam, and a right front lower main longitudinal beam. The left or right front lower main longitudinal beam is located directly below the front upper main longitudinal beam. The rear end of the front upper main longitudinal beam is connected to a main crossbeam. The rest area includes a left rear main longitudinal beam and a right rear main longitudinal beam. The left and right rear main longitudinal beams connect to the front axle module of the chassis. The main crossbeam is connected to a middle crossbeam via a left upper vertical beam and a right upper vertical beam. The left and right upper vertical beams are located in front of the left and right rear main longitudinal beams, respectively. The left front lower main longitudinal beam, right front lower main longitudinal beam, left rear main longitudinal beam, and right rear main longitudinal beam are all connected to the middle crossbeam. The chassis includes the above module. The vehicle includes the above chassis. This utility model, while meeting NVH performance requirements, retains a rest area to meet the driver's rest needs.

This utility model relates to the technical field of rail vehicle components and discloses a uniformly stressed rubber stack for rail vehicles, including a support base. A central metal sphere is fixedly installed inside the support base. A first rubber layer is fixedly installed on the outer side of the central metal sphere. A first supporting sphere is fixedly installed on the outer side of the first rubber layer. A second rubber layer is fixedly installed on the outer side of the first supporting sphere. A second supporting sphere is fixedly installed on the outer side of the second rubber layer. This uniformly stressed rubber stack for rail vehicles has a cylindrical support plate with a first and second inclined surface, reducing stress concentration. Through a multi-layer metal reinforcement structure design, local stress concentration is reduced, dynamic load transfer efficiency is improved, and the longitudinal and lateral stiffness of the rubber stack is increased, resulting in uniform stress distribution, extended service life, longer replacement cycles, lower failure rates, and reduced maintenance costs.

The invention relates to the field of ankle joint rehabilitation robots, in particular to a one-translation and two-rotation type parallel ankle joint rehabilitation robot and a working method. The parallel mechanism comprises a static platform, a first mixed branch chain, a second just constraint branch chain and a movable platform, and a basic kinematic chain containing two loops is formed. The mechanism only comprises a translation pair and a rotation pair, so that the mechanism has the advantages of high rigidity and good precision.

The utility model belongs to the technical field of batteries, and relates to a transverse and longitudinal beam reinforcing plate for a battery pack. The transverse and longitudinal beams comprise a transverse beam and longitudinal beams connected to the two sides of the transverse beam, and the reinforcing plate comprises a connecting part and a plurality of reinforcing parts connected to the peripheral side of the connecting part; one part of the reinforcing part is used for being fixed on the top surface of the cross beam at the joint of the cross beam and the longitudinal beam, and the rest part of the reinforcing part is used for being fixed on the top surface of the longitudinal beam at the joint of the cross beam and the longitudinal beam. The transverse and longitudinal beam reinforcing plate is simple in structure, easy to machine, low in cost and capable of being produced on a large scale; the reinforcing parts are riveted with the top surfaces of the transverse and longitudinal beams, so that the transverse and longitudinal beams are further fixedly connected through the connecting parts and the reinforcing parts, the connecting strength between the transverse and longitudinal beams is improved, and the risk of vibration failure caused by welding between the transverse and longitudinal beams is reduced.

The utility model relates to a one -piece board connection technical field, and disclose a kind of quick installation's mold protection one -piece board connecting piece, including plate body assembly, concrete component and connecting body assembly, concrete component is installed in the side of plate body assembly, connecting body assembly is respectively sleeved in the inside of plate body assembly and concrete component;It is favorable to prevent fire spread effectively through fireproof layer and outside reinforcing layer in plate body assembly, improve mold protection one -piece board strength and stiffness, avoid the crack of plate body, improve the safety, durability and permeability resistance of building;It is favorable to be directly together with concrete structure and pour in construction process, without additional formwork removal step, to significantly improve construction efficiency, and connecting piece can ensure mold protection one -piece board and the firm connection of the concrete wall body that pours, improve the safety and stability of structure, reduce installation cost and guarantee building safety.

The invention provides a battery pack box body and a battery pack, and relates to the technical field of batteries, the battery pack box body comprises a cross beam assembly, the cross beam assembly comprises a cross beam main body and at least one first supporting beam, a plurality of cavities are formed in the cross beam main body, and inclined ribs are arranged in the cavities close to the bottom of the battery pack box body; one end of the first support beam is welded with the side wall of the cross beam main body deviating from the battery monomer to form a first welding seam and a second welding seam, the first welding seam extends along the second direction and is positioned at the upper part of the first support beam along the third direction, and the second welding seam extends along the third direction and is positioned at two sides of the first support beam along the second direction; the cross beam assembly has the advantages that the cross beam assembly is compact in structure, high in rigidity and relatively light in weight, and the vibration resistance of the cross beam assembly is improved.

The present application relates to the technical field of tire overall preparation, and proposes a variable stiffness tire and a tire overall preparation device, which can adapt to various driving conditions and realize the collaborative optimization of comfort and control performance, and the structure can effectively disperse flexural stress, and is not prone to heat accumulation, bulging and cracking, thereby significantly improving high-speed durability and load capacity, and the matching tire overall preparation device can adapt to the molding process of the tire body, effectively improve tire production efficiency and manufacturing precision, and comprises a tire body and a triangular rubber ring, wherein the tire body comprises a tread, a sidewall and an inner tire ring, the sidewall is divided into a shoulder section, a sidewall middle section and a bead section in the radial direction, the stiffness of the bead section, the shoulder section and the sidewall middle section decreases in turn, the sidewall middle section is a main flexible deformation area, the shoulder section provides lateral restraint, the bead section provides high stiffness support, the tread is fixedly connected with the shoulder section, and the inner tire ring is fixedly connected with the triangular rubber ring.

The utility model relates to hardware product processing technical field, and disclose a kind of CNC rotary fixture for processing hardware product, including rotary support mechanism, and the clamp mechanism is provided in the upper and lower ends of rotary support mechanism.The utility model is by being designed with adjustable structure's clamp, namely being provided with rotatable design's movable clamp jaw, its movable clamp jaw is rotatably connected in its corresponding fixed clamp jaw one end, and its fixed clamp jaw other end is rotatably provided with screw rod, its screw rod upper end is threadedly connected with compression nut, its movable clamp jaw other end is provided with the assembly groove of cooperation compression nut, its movable clamp jaw can be relative to the hardware product clamping of different opening of its fixed clamp jaw, and movable clamp jaw is limited and compressed by compression nut, realize the firm fixing of hardware product clamping, overall can adapt to hardware product of different size and shape, improve the versatility and adaptability of clamp.

The application discloses a shear connector, a steel-concrete composite beam containing the shear connector and a construction method of the steel-concrete composite beam. The shear connector comprises an inverted truncated cone type cylinder (7), a stiffener, a cover plate, a penetrating steel bar (8) and a high-strength bolt (21); the stiffener comprises an integrally formed stiffener bottom plate (13) and a stiffener side plate (14), the size of the stiffener bottom plate is consistent with the size of the lower opening of the cylinder, and the stiffener bottom plate is attached to the lower opening of the cylinder; the stiffener bottom plate is provided with a second connecting hole for connecting the high-strength bolt; the stiffener side plate is arranged around the stiffener bottom plate and is attached to the inner wall of the cylinder; the height of the stiffener side plate is lower than that of the first connecting hole; the cover plate covers the upper opening of the cylinder; the penetrating steel bar transversely passes through the cylinder through the first connecting hole and leaves a connecting section on each side of the cylinder; and the high-strength bolt connects the stiffener bottom plate through the second connecting hole. The application realizes the disassembly and replacement of each component of the shear connector and the prefabricated bridge deck; and the structure form and stress performance of the shear connector are optimized.

The invention discloses an indoor and outdoor autonomous switching unmanned intelligent agent with a redundant propulsion system and a method, and belongs to the technical field of unmanned aerial vehicles. The indoor and outdoor autonomous switching unmanned intelligent body with the redundant propulsion system comprises an unmanned intelligent body main body, two propulsion rotors are arranged in each auxiliary propeller shell, and a main rotor is arranged in a flight opening; and a high-precision hydraulic turntable is mounted at one end of the auxiliary propeller shell. The problems that an existing multi-rotor unmanned aerial vehicle is difficult to position in an indoor GPS denial environment and poor in maneuverability in a narrow space are solved, the propelling rotors can provide lift force for maintaining the height by calculating the thrust distribution scheme of the propelling rotors, yawing, pitching and rolling moments are synthesized through differential thrust, the flight control right is taken over, and the maneuverability of the multi-rotor unmanned aerial vehicle is improved. An intelligent unmanned platform which can safely, autonomously and continuously operate at an environment boundary and a system state boundary is created, and the intelligent unmanned platform can autonomously fly in indoor and outdoor complex environments and has a fault-tolerant capability.

The application discloses a medium-gain shaped horn antenna for interplanetary exploration, comprising a radiator assembly and a waveguide assembly, wherein the radiator assembly is fixedly connected to the top of the waveguide assembly. The radiator assembly comprises a multi-degree-of-freedom choke flange, and can realize double-frequency-band, double-circular-polarization and transmit-receive shared pattern shaping performance. The radiator assembly comprises an impedance matching ring, which realizes good impedance characteristics of a small-diameter circular waveguide horn at a low frequency band, and realizes port isolation of more than 25 dB without adding a filter. The radiator assembly and the waveguide assembly are metal structures made of aluminum alloy or magnesium alloy, and the antenna has good environmental adaptability in orbit, and has the advantages of simple structure, good rigidity, high reliability and the like.

The utility model belongs to the technical field of corrugated pipes, and discloses a multifunctional corrugated pipe fitting combination device which comprises two corrugated pipes which are symmetrically distributed, and elastic butt joint structures and rigidity increasing structures are arranged outside the two corrugated pipes. The first fixing ring and the second fixing ring are installed on the opposite faces of the two corrugated pipes, the buffer springs are installed on the inner walls of the first fixing ring and the second fixing ring, and through the design of the elastic butt joint structure, the elastic blocks are inserted into the inner walls of the sliding grooves, the second fixing ring is rotated, and the elastic blocks are driven to slide in the sliding grooves; then, the first fixing ring and the second fixing ring are tightly locked through a bolt, in the operation process, the two sealing rubber rings are tightly attached, when the corrugated pipe vibrates, acting force borne by the sealing rubber rings can be transmitted to the buffer springs, and the buffer springs can buffer the corrugated pipe by means of the buffering characteristic of the buffer springs. And the damage of the impact vibration to the sealing rubber ring is effectively weakened.

The utility model provides a kind of vibration platform structure of spherical graphite vibration grinding machine, belong to graphite vibration grinding machine technical field, the vibration platform structure of this spherical graphite vibration grinding machine, it include: vibration platform body, vibration excitation device, elastic support component, grinding vessel, transmission connecting mechanism and damping control device, vibration platform body is rectangular plate, and upper surface central fixed spherical grinding vessel;Excitation motor is fixed in the center of bottom surface, output shaft is coaxial with eccentric wheel component, and main, vice eccentric wheel is divided on the upper and lower ends of rotating shaft;Each elastic support unit is arranged in four corners, including support seat and helical compression spring, support seat bolt is fixed bottom surface, and spring lower end is connected ground surface;Vibration is transmitted to grinding vessel by platform by transmission connecting mechanism;The utility model can solve the technical problems that vibration transmission efficiency is low, grinding uniformity is poor and equipment stability is insufficient in the vibration platform structure of spherical graphite vibration grinding equipment in the prior art.

A ring-tooth roller worm gear rotary table belongs to the field of machinery. Its structure comprises three main components: a worm gear assembly, a worm, and supporting components. The basic assembly relationship is as follows: under the constraint of the supporting components, including the housing and bearings, a worm-driven worm gear transmission relationship is formed. A closed tooth root limiting groove is machined at the root of the worm gear teeth in the worm gear assembly. A tooth flank bearing surface is machined above the tooth root limiting groove. The worm's helical teeth are symmetrically distributed on both sides of the central section, divided into independent left and right helical tooth sections. Torque transmission between the worm gear and worm is achieved through the rolling friction of steel balls. It can be widely used in fields requiring precision and high torque.

The present application relates to a kind of helical progressive large space steel-concrete hybrid structure forming method, comprising: helical progressive large space steel-concrete hybrid structure, the structure includes central body structure, helical progressive ramp, large span roof, cantilever large space and roof vertical truss;Central body structure is located in middle zone, helical progressive ramp is located in the outer circle of central body structure, large span roof is located in the roof of internal multiple local large space area, cantilever large space is located in the high end of helical progressive large ramp, and roof vertical truss is rigidly supported on the roof of central body structure and large span roof.The beneficial effects of the present application are: central body structure is core support frame, external helical progressive ramp arrangement, multi-region large space roof structure is realized by helical progressive ramp, large span roof, and overall stress model is formed by cantilever large space, roof vertical truss, lateral stiffness is controlled, and multi-region large space, helical progressive building modeling and function are realized.

The present invention relates to an acoustic membrane (14a) for an acoustic transducer, the membrane comprising a substrate (21); and at least one reinforcement layer (23a-23b) of the substrate (21), the at least one reinforcement layer (23a-23b) enabling to improve the stiffness of the membrane (14a). The reinforcement layer (23a-23b) of the substrate (21) corresponds to an amorphous carbon layer belonging to the DLC family and has a stiffness greater than 300 GPa, a density lower than 3400 kg / m 3 and a thickness between 0.5 pm and 6 pm. The reinforcement layer (23a-23b) is attached to the substrate (21) with a bonding layer (22a-22b) having a thickness between 0.1 pm and 1 pm and comprising at least one metallic compound.