27 results about "Elastic systems" patented technology

The invention discloses a non-Hermite elastic system and application thereof. The system comprises a first resonator, a second resonator and a coupling module. The coupling module is composed of a sensing-actuating feedback system and comprises a first sensor and a first actuator which are arranged on a first resonator, and a second sensor and a second actuator which are arranged on a second resonator. And the sensors are used for detecting the deformation of the corresponding resonators. The actuators are used for driving the corresponding resonators to deform. Excitation signals of the first actuator and the second actuator are obtained by multiplying sensing signals of the first sensor and the second sensor by a transfer function. The transfer function makes the two natural frequencies of the non-Hermi elastic system tend to be consistent near a singular point. The bifurcation value of the inherent frequency of the system near the singular point is very sensitive to the parameter change of the system, so that the cantilever beam mass measurement device and the crack propagation detection device with ultrahigh sensitivity can be obtained.

The invention discloses a trampoline and elastic system. The trampoline structure is novel and reasonable, the two ends of the elastic member are supported by vertical support units, and the elastic member and the elastic support both have elastic energy storage characteristics. The invention makes full use of the bending elastic energy storage characteristics of the elastic member and the excellent elastic energy storage characteristics of the elastic support, which not only significantly improves the elastic performance of the trampoline as a whole, increases the lift range of the elastic member, eliminates the friction noise generated when the elastic member rises and falls, but also eliminates the adverse effects on the support caused by the bending of the elastic plate, the turning angle of the two ends of the supported elastic plate, and the change of the horizontal distance between the two ends of the supported elastic plate. The human body or other objects can make vertical up-and-down movement in the middle of the elastic member by using the elastic deformation of the elastic member and the elastic support, which is beneficial to the physical training, fitness, entertainment and rehabilitation of people of different ages. The elastic system has all the characteristics of the above-mentioned trampoline and will not be described here.

A body of a vehicle can include a front structure including a front wheel of the vehicle; a rear structure including a rear wheel of the vehicle; a rotation shaft connecting the front structure and the rear structure and allowing the front structure and the rear structure to rotate relative to each other; and an elastic system providing a return force in the opposite direction of the relative rotation in response that the front structure and the rear structure rotate relative to each other is disclosed.

This invention discloses a centering support and a sound-generating device. The centering support is applied to the sound-generating device and has a major axis side and a minor axis side. The ratio of the length of the major axis side to the length of the minor axis side is greater than or equal to 1.5. The centering support has at least two mounting holes, which are spaced apart and penetrate the centering support. The mounting holes are used for the voice coil of the sound-generating device to pass through and be fixed. This invention aims to provide a centering support that can ensure the axial synchronous movement of two voice coils and improve sound quality. When applied to a sound-generating device, this centering support ensures the axial synchronous movement of two voice coils, reducing nonlinear distortion caused by the asynchrony of the two voice coils during operation. Simultaneously, while satisfying the damping characteristics of an elastic system, the centering support also ensures the stiffness and strength of the centering support during vertical movement, making the product practical.

A vehicle body of a vehicle includes: a front structure of the vehicle body including a front wheel of the vehicle; a rear structure of the vehicle body including rear wheels of the vehicle; a rotating shaft connecting the front structure and the rear structure and configured to enable the front structure and the rear structure to rotate relative to each other; and an elastic system configured to provide a restoring force in a direction opposite to a relative rotation direction in response to relative rotation of the front structure and the rear structure with respect to each other.

The invention discloses a plastic sealing strip with multiple locking functions, which comprises a lock body assembly and a lock cylinder, the lock cylinder is a plastic lock cylinder and is separated from the lock body assembly, the lock body assembly comprises a lock body and a lock rod, a lock cylinder cavity is arranged on the lock body close to the lock rod, the plastic lock cylinder is arranged in the lock cylinder cavity, and the lock cylinder is arranged in the lock cylinder cavity. A plurality of layers of lock tooth pieces are arranged in the plastic lock cylinder, each layer of lock tooth piece comprises a plurality of elastic arms, lock teeth are arranged on the elastic arms, and a plurality of locking grooves are formed in the lock rod. The locking teeth on the elastic arm are clamped with the locking grooves in the locking rod in a locking state; the elastic arms are distributed in the circumferential direction of the lock hole shaft and apply radial locking force to the lock teeth. According to the plastic sealing strip with the multiple locking functions, the problems of safety and recycling compatibility are solved through a split lock cylinder structure and a radial elastic system, and each lock tooth is provided with an elastic arm to provide radial locking force, so that the locking capacity is greatly improved, and the cost is reduced.

Filtering pulley (1) comprising a hub (2) suitable for being fixed to a shaft rotating around an axis (A), a crown (3) and a closing element (11) associated with the crown (3) and definining with it a space (15), the crown (3) and the closing element (11) being mounted coaxially and rotationally free on the hub (2), at least one elastic system (25) arranged circumferentially with respect to the hub (2) and to the crown (3) and interposed between a pair of first elements (26) integral with the hub (2) and between a pair of second elements (16) integral with at least one of the crown (3) and the closing element (11), wherein the closing element (11) is supported by the hub (2), the crown (3) being rigidly carried by the closing element (11).

The invention discloses a rail transit steel rail damper capable of restraining multi-order frequency, and belongs to the technical field of rail transit vibration and noise reduction, the rail transit steel rail damper comprises two constraint damping assemblies and a resonance damping assembly, each constraint damping assembly comprises a constraint plate and an elastic damping layer attached to the rail web of a steel rail, the constraint plate is embedded in the top of the elastic damping layer, and the resonance damping assembly is embedded in the elastic damping layer. The inner side of the elastic damping layer is of an arc-shaped structure matched with the rail web of the steel rail, and the resonance damping assembly comprises a mass plate, a first elastic layer, a middle plate, a second elastic layer and an upper cover plate which are sequentially connected from bottom to top. By restraining the damping assembly, the shearing area of the damping layer parallel to the longitudinal section of the steel rail is increased, the shearing effect of the damping layer is enhanced through overall vertical deformation of the steel rail, the vibration and noise reduction effect is further improved, and different elastic systems are formed through the mass plate, the first elastic layer, the middle plate, the second elastic layer and the upper cover plate; tuning with different frequencies of the steel rail can be realized, and vibration is inhibited.

The present application relates to cutting system, taro round forming machine and its forming method, relate to cutting equipment technical field, including feeding system, cutting feed system, cutting device, rack, conveying system, several powder spraying systems and anti-sticking knife elastic system, the feeding system is installed on the cutting feed system, the end of the cutting feed system is provided with cutting feed hole, the cutting device is located at the end of the cutting feed system, and the blade of the cutting device is attached to the cutting feed hole, the conveying system is located below the cutting device, the powder spraying system is located above the conveying system, the anti-sticking knife elastic system includes elastic plate, multiple suction cups and air cylinder, the elastic plate is bent, the elastic plate is located at the back side of the blade of the cutting device towards the cutting feed hole, the elastic plate is swingly installed on the blade, multiple suction cups are installed on the elastic plate, a gas pipe joint is arranged on the suction cup, the air cylinder is installed on the blade, the piston rod of the air cylinder is connected with the elastic plate, and the particle integrity and production continuity are guaranteed.

The present application relates to a kind of self-controlled one-way friction damper, including frame, the distance between upper wall and lower wall in the frame is from small to big, elastic system and friction system are arranged in the frame, the elastic system passes through friction system, and two ends are respectively contacted with the upper wall and the lower wall of frame, and the friction system is partially located outside the frame;With the increase of building displacement, the elastic potential energy of elastic system itself increases, the force between elastic system and frame increases, the energy consumption of friction increases, and the energy consumption of damper will increase with the increase of building displacement, in the process of building reset, the elastic potential energy of elastic system gradually decreases, the force between elastic system and frame gradually decreases, and the energy consumption of damper gradually decreases, without affecting the complete reset of building, without making building produce residual deformation or fatigue, can prolong the service life of building.

Microelectronic device of piezoelectric type, wherein a first and a second actuation unit are coupled between a fixed structure and a tiltable structure, on a first side of a rotation axis to control the rotation of the tiltable structure around the first rotation axis. Each actuation unit is formed by a first actuator, a second actuator and an elastic system. Each elastic system mutually couples the free ends of the respective first and second actuators to the tiltable structure.

The invention provides a parallel steel strand stay cable tensioning optimization control method. The method comprises the steps that firstly, basic parameters and unstressed cable length of stay cables are determined, wherein the target tensioning control force of the stay cables of a current construction section and the theoretical distance between a main beam anchor point and a bridge tower anchor point after tensioning is completed are determined; based on the parabola theory, considering the sag effect and the elastic elongation of the stay cable, and solving the unstressed cable length of the stay cable; 2, establishing an adjacent strand tensioning force recursive relation based on a structure coupling effect: simplifying a bridge tower and a main beam structure system into a linear elastic system along the axis direction of the stay cable, and obtaining a nonlinear proportional relation between adjacent strand tensioning forces caused by a structure rigidity and cable body flexible coupling effect; 3, calculating a single-strand tensioning force theoretical value of the whole stay cable under the control of a target value; and 4, anchoring loss compensation and final tensioning force optimization: calculating the precise tensioning force of each strand of the whole stay cable to carry out super tensioning, so that the cable force of the whole stay cable is consistent with a design target.

The utility model relates to a new sector block for a thrust bearing of an immersion pump, a working surface and a supporting surface are connected through a middle rib and a side rib, the middle rib is located at the center of the working surface and the supporting surface, and the side rib is symmetrically arranged on both sides of the working surface and the supporting surface. The utility model's working surface, supporting surface, middle rib and side rib form an elastic system, under the action of working pressure, the sector block can produce slight deformation, the heights of the sector blocks in the same thrust bearing are consistent, the working surface of the sector block can be ensured to be planar, and the effective bearing area will not be reduced; a hollow heat dissipation channel is formed in the middle of the working surface, the supporting surface, the middle rib and the side rib, which can effectively reduce the temperature of the working surface; meanwhile, the supporting ball is located at the center of the supporting surface and opposite to the middle rib, so that a lubricating water film can be formed between the sector block and the sliding plate of the water pump in forward and reverse rotation, and the problem of thrust bearing failure due to reverse rotation of the pump shaft is eliminated.

The application provides a combined stiffness-adjustable liquid spring vibration isolator and a stiffness adjusting method thereof, and relates to the technical field of liquid spring vibration isolators.The application combines a rubber and an air spring to provide required elastic stiffness.The application collects and processes signals from an inner cylinder displacement sensor, an outer cylinder displacement sensor and a pressure sensor by using an electronic controller (ECU controller), compares and analyzes the signals with preset target displacement difference signals of the inner and outer cylinders, dynamically adjusts a duty cycle of an output pulse width modulation signal based on a comparison result, controls opening and closing of a solenoid valve in an air spring assembly, adjusts stiffness of the air spring, and compensates stiffness reduction caused by aging of a rubber material.The control scheme effectively maintains stability of a vibration isolation frequency of the liquid spring vibration isolator, and ensures performance reliability of a vibration isolation system in a long-term operation process.

A shock-absorbing device comprises a hollow housing with a closed end section and an opposing open end section through which a main axis passes, a resilient system disposed in a bottom section of the housing, a pressing element, and a friction system disposed in the open section of the housing. The resilient system is formed by a dynamic load absorber located in the closed part of the housing along the main axis of the housing on the guide bar. The guide bar has a head for installation thereof in a recess formed in the closed bottom section of the housing for centering the guide bar relative to the main axis. All structural components of the friction system and the resilient system are provided and arranged such that the working stroke of the shock-absorbing device is from 110 to 120 mm.

The invention discloses a tencel and chinlon blended skin-friendly fabric and a preparation method, and relates to the technical field of fabrics, the tencel and chinlon blended skin-friendly fabric comprises an upper layer fabric and a lower layer fabric; the upper-layer fabric and the lower-layer fabric are both blended fabrics of tencel and graphene modified chinlon, and the weight ratio of the tencel to the graphene modified chinlon is (60-70): (30-40); a spacing fiber layer is arranged between the upper-layer fabric and the lower-layer fabric, and the two ends of the spacing fiber layer are in woven connection with the upper-layer fabric and the lower-layer fabric respectively; the blended fabric is formed by weaving warp-wise composite yarn and weft-wise composite yarn, and the weight ratio of the warp-wise composite yarn to the weft-wise composite yarn is 1: (2-2.5). A double-layer interval structure and a multifunctional composite yarn technology are combined, the three-dimensional elastic effect which cannot be achieved by a traditional single-layer fabric is achieved, the interval fiber layer forms elastic supporting columns between the upper-layer fabric and the lower-layer fabric, and the elastic supporting columns and the elastic characteristics of warp and weft composite yarns have a synergistic effect, so that the elasticity of the fabric is improved. And a complete three-way elastic system is constructed.

The invention relates to an actuating device (1) for opening and closing a cover in or on a vehicle, which has a locking and / or latching kinematics which cooperates with the cover. The actuating device has a housing (2) and an actuating part (3) which is received in the housing (2) and is movably supported relative to the housing (2). The actuating part (3) cooperates with the cover in such a way that, when the cover is moved between a closed position and an open position, the actuating part (3) performs a movement between a first position and a second position relative to the housing (2), wherein the actuating part (3) is in a locked state at the first position. The actuating device (1) further has an elastically deformable elastic system (4) which is associated with the actuating part (3), which has in particular a progressive spring characteristic.

The utility model discloses a high -quality bathroom door frame structure of motor train unit of waterproof effect, including door frame main part, the door frame main part inside is hinged to be connected with door main body, the first installation slot is set up in the door frame main part inside four -corner side wall, the door frame elastic sealing subassembly is provided with in the first installation slot, the door frame elastic sealing subassembly includes the first magnetic stripe fixed connection of first installation slot bottom, and the device passes through the synergies of door frame elastic sealing subassembly and door elastic sealing subassembly, the sealing reliability of closing door is improved significantly, when door main body closes to door frame main part, the first magnetic stripe and second magnetic stripe produce initial adsorption force of heteropolar attraction, and the guide sealing strip accurate alignment is guided, along with the door body continuing to close, the elastic system of damper and spring constitutes is compressed, provides the progressive buffer pre -tightening force, makes sealing strip even and paste door body and door frame contact surface.

The invention discloses a spring ring vibration reduction structure of a small and medium-sized gas turbine, and relates to the technical field of gas turbine and aero-engine rotor supporting structures. The invention solves the problems of complex structure, limited space and difficulty in considering high rigidity and large axial deformation compensation capability at the same time existing in the conventional bearing vibration reduction structure of the small and medium-sized gas turbine and the aero-engine. The bearing comprises a bearing shell, a bearing, a cover plate and a pressing assembly arranged between the end face of an outer ring of the bearing and the cover plate. The pressing assembly is composed of a pair of spring rings and an adjusting ring clamped between the spring rings. Each spring ring is an annular sheet with trapezoidal bosses evenly distributed in the circumferential direction, and the bosses of the two spring rings are arranged in a staggered mode in the axial direction, so that continuous and even supporting is formed in the circumferential direction, and an elastic system with nonlinear rigidity is jointly formed. After being pressed by the cover plate, the assembly generates a preset interference magnitude so as to maintain a stable bearing pre-tightening force. High-rigidity supporting, large-axial-direction deformation compensation and efficient vibration suppression can be synchronously achieved.

The application discloses a kind of hot aerodynamic elastic system across saddle transition dynamics stability analysis method, comprising: S1, construct nonlinearly heated wallboard aeroelastic system analysis model, obtain the buckling modal configuration and vibration modal configuration of linearized system;S2, construct the reduced-order analysis model of nonlinearly heated wallboard aeroelastic system, for analyzing the stability characteristics of system initial equilibrium position;S3, construct the potential energy surface of heated wallboard structure, for analyzing the balance point species, quantity and position of wallboard under different temperatures;S4, consider aerodynamic elastic effect and load aerodynamic load to construct the linearized across saddle transition dynamics analysis model of hot aeroelastic system, for analyzing the across saddle transition dynamics characteristics of multi-stable non-conservative dynamic system saddle point local jump behavior.The application realizes high-fidelity prediction to the nonlinear thermal aeroelastic behavior of wallboard structure, provides key theoretical tool for the thermal strength reliable design and accurate evaluation of wallboard structure.

The utility model discloses an alternately attached elastic system for a multi-section combined mattress, which is formed by alternately arranging a plurality of bagged concave springs and a plurality of bagged convex springs, and each concave spring is sequentially provided with a first soft elastic area, a first buffer area, a first supporting area and a first buffer bearing area from one end to the other end. The convex spring is sequentially provided with a second soft elastic area, a second buffer area, a second supporting area and a second buffer bearing area from one end to the other end, the honeycomb-shaped arrangement and combination effect of the honeycomb-shaped arrangement and combination effect of the honeycomb-shaped arrangement and combination effect of the honeycomb-shaped arrangement and combination structure of the honeycomb-shaped arrangement and combination structure of the honeycomb-shaped arrangement and combination structure of the honeycomb-shaped arrangement and combination structure of the honeycomb-shaped arrangement and combination structure of the honeycomb-shaped arrangement and combination structure of the honeycomb-shaped arrangement and combination structure of the honeycomb-shaped arrangement and combination structure is better; the problems that a traditional glue-free threading spring combination system is poor in comfort, the spring is prone to dislocation and clamping, and an elastic system is prone to deformation are solved, and the comfort of the elastic system and the stability of the structure are improved.

The invention discloses a hybrid nano-generator, and belongs to the field of nano-generators. Comprising a shell, a friction nanometer generator module and an electromagnetic generator module which are arranged in the shell, and further comprises an elastic transmission assembly and an inertia mass block which are arranged in the center in the shell, the elastic transmission assembly comprises a plurality of elastic strips which are fixed in a crossed mode, and multiple ends, away from a crossed fixing point, of the elastic strips bend upwards and converge towards the center; the elastic transmission assembly is arranged on the base to form an arched cage-shaped structure, the inertia mass block is fixedly arranged in the center of the top of the elastic transmission assembly, the friction nanometer generator module comprises a plurality of TENG units arranged on the periphery of the elastic transmission assembly, and the electromagnetic generator module comprises a rotor and a rotor. The elastic system with a resonance enhancement mechanism is designed, the problem that the low-frequency wave energy capturing efficiency is low is solved, large-amplitude mechanical response is achieved under low-frequency excitation, and the output power of the friction nanometer generator module and the electromagnetic generator module in the low-frequency wave band is remarkably improved.

The invention belongs to the technical field of medical instruments, and particularly relates to an anti-extrusion hepatobiliary surgery nursing drainage device which comprises an anti-extrusion butt joint device and a positive pressure drainage device. The anti-extrusion butt joint device provides a built-in protective tube as a medium, so that the drainage tube is prevented from being directly stressed; through a buffer spring, a conical silicon rubber sleeve and a lever type elastic system composed of a synchronous sleeve shaft, a torsion spring and a resistance wheel, external force traction and extrusion from multiple directions are effectively buffered and counteracted, and it is ensured that a drainage channel is smooth and fixed stably. Meanwhile, the positive pressure drainage device adopts the combination of a Venturi tube and a positive pressure bottle, stable positive pressure airflow is converted into continuous negative pressure for suction, traditional passive gravity drainage is replaced, and therefore more efficient and stable active drainage is achieved. According to the integral design, the drainage stability and the comfort level of a patient are improved while the pipeline is prevented from being pressed, blocked and displaced, and the complication risk is reduced.

The invention relates to the technical field of argon arc welding machine accessories, discloses an adjustable ground wire clamp for an argon arc welding machine, and aims to solve the problems that an existing ground wire clamp is poor in adjustment adaptability, contradictory in clamping stability and protectiveness, insufficient in structural precision, tedious in operation and the like. The ground wire clamp comprises an adjusting assembly and clamping assemblies, the adjusting assembly is matched with a rectangular first limiting rod in a movable sleeve through cross-shaped mounting grooves in the two sides of a main shaft, and stepless adjustment of the distance between the two clamping assemblies is achieved; the clamping assembly adopts a double-spring composite elastic system, provides basic clamping force through a second spring, realizes buffer compensation through a first spring, and is matched with a three-point positioning structure of a wedge-shaped anti-skid clamping block and a positioning rod, so that stable clamping is ensured, and the ground wire is not damaged. And meanwhile, the adjustment precision is improved through the space cross limiting design, tool-free rapid operation is achieved through modular integration, the adaptability, reliability and convenience of the ground wire clamp are improved, and the ground wire clamp is suitable for various argon arc welding scenes.

The invention provides an elastic supporting assembly for a vibrating screen and a rigidity adjusting method thereof, and relates to the field of vibrating screens, the elastic supporting assembly comprises a bottom plate, a pre-tightening plate, an elastic system, a mounting frame and a pre-tightening bolt; the pre-tightening plate is horizontally located above the bottom plate, and the mounting frame is provided with a mounting plate located between the pre-tightening plate and the bottom plate. The pre-tightening bolt movably penetrates through the bottom plate, the mounting plate and the pre-tightening plate in sequence from bottom to top and can be connected and adjusted through a nut; the elastic system comprises a first disc spring set, a second disc spring set, a first electromagnetic set and a second electromagnetic set, the first disc spring set is located between the pre-tightening plate and the mounting plate, the second disc spring set is located between the mounting plate and the bottom plate, the first electromagnetic set is located between the first disc spring set and the pre-tightening plate, and the second electromagnetic set is located between the second disc spring set and the bottom plate. The rigidity of the whole elastic supporting system can be changed, it can be guaranteed that the frequency and amplitude of the disc spring vibrating screen are kept constant during working, and the stability of the disc spring vibrating screen is improved.

The application provides a buffer and a railway vehicle, the buffer comprising a rubber elastic system, the rubber elastic system comprising a plurality of rubber units stacked in sequence along an axial direction, the rubber elastic system further comprising a pre-compression device, at least one of the plurality of rubber units being pre-compressed into a pre-compressed rubber unit by the pre-compression device, and at least one of the plurality of rubber units being a natural rubber unit which is not pre-compressed. The buffer further comprises a friction system, the impedance force of the buffer being mainly provided by the rubber elastic system, and the friction system only providing a small part of the impedance force. A quick release hole is further arranged on the shell, and a stopper is arranged on a support seat of the friction system. The buffer can meet the use requirements of the railway vehicle, has high overall stability, and the friction block of the friction system can be quickly disassembled, so that the maintenance efficiency of the friction system is high.