79 results about "Inerter" patented technology

The invention provides a fan tuned mass inerter damper structure and a parameter design method, and belongs to the field of ocean engineering vibration reduction. The structure comprises an engineering structure, an outer sleeve, a roller, an inner sleeve, an additional mass block, four damper spring units and four inerter system units. The engineering structure is fixed with the external sleeve, and a guide rail is formed between the engineering structure and the external sleeve; the additional mass block is arranged in the center of the inner sleeve, the four inerter system units are connected with the damper spring unit and located on the same plane, the other ends of the four inerter system units are connected with the inner wall of the inner sleeve, and each inerter system unit comprises an inerter system spring, a damping unit, a first inerter unit and a second inerter unit. According to the structure, translation-rotation conversion is achieved through the inerter unit, efficient inertia synergy is achieved with small physical mass, and the load of a draught fan is relieved; the four units are symmetrically arranged to ensure omnidirectional vibration suppression; the roller guide rail reduces friction and improves response sensitivity and energy consumption efficiency; according to the parameter design method, parameters are accurately optimized, and broadband vibration reduction performance and engineering reliability are guaranteed.

The invention belongs to the technical field of power transmission tower structure damping, and discloses an inerter particle type power transmission tower damping device with a multidirectional control effect. The inerter is introduced into the particle damper, so that the total mass of the damping device is reduced, and the light weight of the device is achieved. And in consideration of the fact that the seismic response of the power transmission tower is multidirectional motion, the arrangement mode of the particles and the inerter is optimally designed, so that the damping effect of the device is further improved. The inerter can generate inertia force opposite to the structural vibration direction, and the dynamic damping effect of the particle damper is guaranteed while the number of particles is reduced. The inerter composed of the gear and the rack is small in dead weight, compact in structure and easy to install, a power transmission mechanism has low energy loss, the gear and the rack are in rigid meshing transmission, rapid rotation of the flywheel can be achieved, the inerter has high sensitivity to sensing of earthquake response of a power transmission tower, and the inerter is suitable for popularization and application. And large rotation inertia force can be generated in a limited space.

The present application relates to a kind of three-dimensional pendulum tuning liquid inductance device, the inductance device includes tuning liquid column damper and tuning mass inductance container, tuning liquid column damper includes swing arm, ball hinge end head, swing arm connector, annular water tank and tuning liquid, swing arm one end is connected with ball hinge end head, the other end is connected with annular water tank by swing arm connector, tuning liquid is filled in annular water tank;Tuning mass inductance container is installed in the lower portion of tuning liquid column damper, ball hinge end head is connected with the structure to be damped, annular water tank swings and drives tuning mass inductance container to carry out energy consumption, the inductance device tuning period is adjustable.Compared with prior art, the present application has can control the vibration in each direction of the structure to be controlled, wide range of use;The parameters of each component can be flexibly adjusted to achieve the best damping effect, while tuning mass inductance container can realize the energy absorption of input structure with smaller space and achieve the two goals of energy dissipation and reduction of upper tuning liquid mass.

The application belongs to the technical field of structural vibration control, and relates to a mechanical-electrical clutch variable inertial damper, which is a semi-active damping device applicable to civil structures and used for inhibiting the vibration of the structure under the action of an earthquake or wind load. The device is realized by matching a mechanical inertial system, an electrical inertial system, an energy recovery control system and an active inertial mass control system. The application ensures that the device provides an inertial force in the acceleration stage of the structure and does not provide a force in the deceleration stage of the structure. The electrical inertial system can effectively reduce the design capacity of the mechanical inertial system, and in combination with the active inertial mass control system, the semi-active variable inertial control similar to bang-bang control can be realized, and in combination with the energy recovery control system, the kinetic energy of the flywheel can be recovered in the deceleration stage.

The invention discloses a viscous inertial inhaul cable damper with self-adaptive damping parameters. The viscous inertial inhaul cable damper comprises a cable clamp, a first proportional rod, a first supporting rod, a first mass block, a first damper, an upper support and a lower support. The first proportion rod is sequentially provided with a first hinge hole, a second hinge hole, a third hinge hole and a fourth hinge hole in the length direction of the first proportion rod. The first hinge hole is hinged to the cable clamp. The second hinge hole is hinged to one end of the first supporting rod. The third hinge hole is hinged with one end of the first damper; the fourth hinge hole is hinged with the first mass block; the other end of the first supporting rod is hinged to the upper end of the upper support, and the other end of the first damper is hinged to the upper support. And the lower end of the upper bracket is connected with the upper end of the lower bracket. The technical problems that an existing inhaul cable damper is insufficient in displacement amplification capacity, complex in structure, large in size and difficult to meet the requirement for large vibration force of a long inhaul cable are solved.

The invention discloses an arch bridge rigid suspender tuned mass inertial torsion damper and an optimization design method thereof.The damper comprises a transmission disc, a dynamic damping disc, a transmission disc and an inerter disc, the transmission disc is fixedly connected with a suspender, the dynamic damping disc is rotatably connected to the suspender, a pre-pressure mechanism is arranged on the transmission disc, and the transmission disc is connected with the inerter disc; the dynamic damping disc is provided with a transmission block which is used for being connected with a pre-pressure mechanism so that rotation of the transmission disc can drive the dynamic damping disc to rotate, the transmission disc is connected to the hanging rod in a sliding mode, a plurality of first chiral metamaterial screws are connected between the transmission disc and the dynamic damping disc, and the first chiral metamaterial screws are arranged in a chiral mode. The inerter disc is rotatably connected to the hanging rod, a plurality of second chiral metamaterial screws are connected between the transmission disc and the inerter disc, and the second chiral metamaterial screws are arranged in a chiral mode. The problems that a traditional inerter is large in size, sensitive to amplitude and difficult to adapt to the degree of freedom of torsion are solved, and efficient, broadband and reliable vibration control is achieved.

The application discloses a kind of distributed drive automobile inertial suspension semi-active control optimization method in the technical field of vehicle suspension vibration isolation, and the method comprises the following working steps: step one, establishing suspension controlled model and ideal reference model;Step two, construct three-order generalized ground semi-active control rule;Step three, phase-frequency collaborative optimization and topological structure screening;Step four, distributed drive automobile inertial suspension semi-active control optimization.The application has the advantages of reducing the performance deviation between actual response and ideal model, improving road friendliness while ensuring ride comfort, and adapting to time-varying road excitation.

The present application relates to a kind of variable stiffness variable damping hydrodynamic inertance vibration isolation device, including cylinder, piston being movably arranged in the inside of cylinder, annular end cover being arranged in the top port of cylinder, the central axis of the piston is vertically through annular end cover;The inner peripheral side wall of the annular end cover is fixedly provided with annular end cover magneto-rheological elastomer, the inner peripheral side wall of the end cover magneto-rheological elastomer is fixedly provided with end cover electrically conductive sleeve, the inner side of the end cover electrically conductive sleeve is provided with end cover magnetic block fixed in the central axis of piston, end cover excitation coil is arranged on the end cover magnetic block and annular end cover, and the rigidity and damping of end cover magneto-rheological elastomer are controlled by the magnetic field generated by the energization of end cover excitation coil.The present application is reasonable in design, can realize the dynamic adjustment of rigidity and damping, effectively solve the problem that traditional structure is not good in vibration isolation effect when facing different frequency vibrations, and improve the practicality and universality of vibration isolation technology.

The present application relates to bridge damping technical field, specifically to a kind of super low frequency tuning lever mass inertial mass damper parameter design method, the damper includes: lever, mass, spring and inertial mass mechanism.Lever middle part is rotatably arranged on the structure to be damped, and lever is divided into power arm and resistance arm;Mass is arranged on power arm;Spring one end is connected with resistance arm, and the other end is connected with the structure to be damped;Inertial mass mechanism includes: arc rack, rotating shaft, flywheel and gear;Rotating shaft is rotatably connected with power arm;Flywheel is arranged on rotating shaft;Gear is arranged on rotating shaft, arc rack is fixedly arranged, and cooperates with gear, power arm swings, gear rotates relative to arc rack, and drives flywheel to rotate.This scheme can solve the problem that the elongation and the amount of TMD spring are increased in the prior art by using super low frequency TMD scheme, the installation space of TMD is limited, and the use cost of TMD is greatly increased, and the influence of TMD self weight on bridge structure.

The invention discloses a pendulum type tuned mass damping device based on a guide cable, a pulley block and an inerter, and belongs to the technical field of vibration control, the pendulum type tuned mass damping device comprises an upper fixing platform, a tower drum and a lower fixing platform, a mass pendulum is connected below the upper fixing platform, a pulley fixing platform is arranged at the lower end of the mass pendulum, and an upper pulley is arranged at the lower end of the pulley fixing platform; a lower pulley is arranged on the lower fixed platform, a guide cable is arranged between the upper pulley and the lower pulley, and the guide cable is connected with an inerter damper. According to the pendulum type tuned mass damping device based on the guide cable, the pulley block and the inerter, the pulley block is arranged on the mass pendulum, and the displacement of the mass pendulum is amplified and transmitted to the inerter damper connected with the guide cable through the pulley block and the guide cable on the pulley block; the lightweight design of the tuned mass damping device in a narrow space is realized through the mass amplification effect of the inerter damper, and the suppression of the vibration of the tower drum is realized through the inertia force of the mass pendulum and the damping force of the damping element.

The invention discloses a lunar rover adjustable inerter suspension device based on stepless speed change. Comprising a shell, electromagnetic windings arranged in the shell in an array mode, planetary intermediate gear fixers connected with the electromagnetic windings, a flywheel arranged in the shell, an output bevel gear connected with the flywheel, and a plurality of planetary intermediate gears arranged on the outer side of the output bevel gear and connected with the output bevel gear in a meshed mode. The planetary intermediate gear is arranged in the shell, the input bevel gear is arranged on the outer side of the planetary intermediate gear and connected with the planetary intermediate gear in a meshed mode, the lead screw is arranged below the input bevel gear and fixedly connected with the input bevel gear, the lead screw nut is arranged on the lead screw and connected with the lead screw, and fixed lifting lugs are arranged at the upper end of the shell and the lower end of the lead screw nut. The planet intermediate gear is installed on the planet intermediate gear fixing device through the gear shaft, and the electromagnetic winding is connected with the planet intermediate gear fixing device. The beneficial effects of the invention are that the method effectively makes up the defects of the prior art in the aspects of adjustment flexibility, adaptability, precision and extreme environment adaptation to the moon.

The invention provides a pulley block planetary composite damping shock absorber of an ultra-long flexible blade of a wind turbine generator and a control method of the pulley block planetary composite damping shock absorber, and belongs to the field of wind power equipment. The system comprises a pulley block, a pulley block assembly, a sun inerter device, a planet inerter device and a shell plate. When the blades swing, shimmy and twist, bending deformation of the blades is transmitted to the pulley blocks through the steel wire cables, vibration displacement is amplified, the inerter system is driven to rotate at a high speed, and under the coordination effect of the inerter effect and various damping elements, the system can convert inertia force of the inerter device into reverse damping force. And energy is efficiently dissipated through multiple paths such as oil circulation and particle collision. Through elastic connection, the planetary inerter compound system achieves adjustment of damping characteristics and broadband vibration suppression, the vibration amplitude of the fan blade is remarkably reduced, the service life of the fan blade is prolonged, and the reliability of the fan blade is improved.

The application relates to a space paddle type inertial device, which comprises a piston driving rod, a flywheel, a rotary damper and a space paddle type rotating shaft; the space paddle type rotating shaft comprises a spherical hinge, a bearing and a connecting rod which are sequentially connected; the flywheel and the rotary damper are connected with two ends of the connecting rod respectively, and the piston driving rod is connected with the spherical hinge; the flywheel and the rotary damper rotate around the same axis, the piston driving rod moves horizontally under the drive of the outside world, the flywheel and the rotary damper are driven to rotate by the space paddle type rotating shaft, and the translation of the piston driving rod is converted into the rotation of the flywheel and the rotary damper by the space paddle type rotating shaft. The rotation of the flywheel realizes mass amplification. The application realizes mass amplification, damping energy consumption, and has the advantages of simple mechanical form, flexible installation, easy implementation, high-efficiency vibration reduction, simple structure, low cost, convenient maintenance and high energy dissipation efficiency compared with the prior art.

The hydraulic inerter with the adjustable inerter coefficient comprises a cylinder body, the interior of the cylinder body is divided into a main cylinder body and an auxiliary cylinder body through a wall face with a round hole, a piston block is arranged in the main cylinder body, and piston rods are coaxially and fixedly arranged on the two end sides of the piston block. The end of one piston rod penetrates into the auxiliary cylinder body through a round hole and is connected with the auxiliary cylinder body through a spring which is coaxially connected with the piston rod, the end of the other piston rod penetrates out of the main cylinder body to the outside, reserved holes are formed in the cylinder walls, on the two end sides of the piston block, of the main cylinder body, and the two reserved holes are communicated through a tubular channel. The tubular channel is composed of a straight pipe section, a spiral pipe section and a connecting pipe. According to the hydraulic inerter with the adjustable inerter coefficient, when the excitation is continuously small, the dynamic mass of the structure is reduced by reducing the inerter coefficient; when excitation is large, large inertia force is output to assist the structure in damping by increasing the inerter coefficient.

The invention belongs to the technical field of pile foundations, and particularly relates to an assembly type vibration reduction reinforcing uplift pile based on inerter damping and a mounting method. The assembly type vibration reduction reinforcing uplift pile comprises an inerter multidirectional vibration reduction device, a first shell is arranged on the outer side of the inerter multidirectional vibration reduction device, a plurality of piston dampers are connected to the inner wall of the upper portion of the first shell through spherical hinges, a connecting plate is arranged in the first shell, and the outer wall of the connecting plate is connected with all the piston dampers through spherical hinges; the upper portion of the connecting plate is connected with an upper-layer building, the lower portion of the connecting plate is connected with an inerter damping assembly, a bottom plate is arranged below the inerter damping assembly, and the bottom plate is fixedly connected with the first shell; and an elastic component is arranged between the connecting plate and the bottom plate. The method has the advantages that damage to the structure under vibration disturbance can be reduced, the vibration control efficiency is improved, assembly type installation is convenient and fast in the construction process, and the pile body is uplift-resistant.

The application discloses a parallel hole damping-spiral tube inerter underwater damping device and belongs to the technical field of underwater vibration control. The device comprises an upper shell, a lower shell, a damping spring, an open small hole damping and an open fluid inerter. The upper shell and the lower shell are two parts in relative sliding. The damping spring and the open small hole damping are assembled in parallel to form an integral body, which together constitutes an open spring damping. The open spring damping and the open fluid inerter are connected in parallel, and the upper and lower ends of the two are respectively fixed to the upper shell and the lower shell. The open small hole damping and the open fluid inerter are both installed in the upper shell and the lower shell. The application adopts a parallel topology structure of inerter, damping and spring. The double spiral pipes and the symmetrical piston rods realize the fluid inerter effect in two directions. The small holes on the damping piston realize the speed-dependent throttling damping. The device has the characteristics of wide frequency vibration isolation, strong static load capacity, symmetrical positive and negative characteristics and deep water environment.

The invention relates to a variable-frequency hydraulic type inerter vibration double-control system. The variable-frequency hydraulic type inerter vibration double-control system comprises a variable-stiffness unit, a displacement triggering unit, a linkage unit and an inerter damping unit. The variable stiffness unit comprises a spring group comprising a long spring and a short spring; the displacement triggering unit comprises a displacement boundary module and a triggering plate between which a triggering gap is preset; the inerter damping unit comprises a hydraulic cylinder filled with viscous damping liquid and a spiral pipe. A piston is arranged in the hydraulic cylinder in a sliding mode and provided with a damping hole. When the relative displacement is smaller than the trigger gap, only the long spring provides elastic restoring force, and the viscous damping fluid flows through the damping hole and the spiral pipe to generate damping force and inertia force; and when the relative displacement exceeds the triggering gap, the triggering plate drives the short spring to participate in work so as to provide increased elastic restoring force. The rigidity can be automatically switched according to the displacement amplitude, and wind vibration and earthquake double control is achieved.

A tuned mass damper inerter includes a counterweight, a first guide rod, a first rigid spring, a first intermediate plate, a damper element, and an inerter element. The counterweight is slidably connected to a floor slab. The first rigid spring is sleeved over the first guide rod, and two ends of the first rigid spring abut against the counterweight and one side of the first intermediate plate, respectively. One end of the damper element and one end of the inerter element are both fixedly connected to the other side of the first intermediate plate, and the other end of the damper element and the other end of the inerter element are both fixedly connected to a main structure of the floor slab. A sliding direction of the counterweight, the first guide rod, the damper element, and the inerter element are parallel to each other.

The invention discloses a rigidity softening inerter tuning damping device which comprises a mounting bottom plate, an external connecting piece, an elastic unit, a guide unit, an inerter unit and an energy consumption unit. The elastic unit comprises at least two elastic pieces, the guide unit is in linkage with the elastic unit, the inerter unit is in transmission connection with the elastic unit, and the energy consumption unit is in friction fit with the inerter unit. Under the small displacement working condition, the single elastic piece independently provides restoring force, and the guiding unit and the mass block form the tuning mass. Under the large-displacement working condition, the at least two elastic pieces are connected in series to achieve rigidity softening and adapt to rigidity degradation in the plastic stage of the main structure, the guide unit drives the inerter unit to convert axial movement into rotary movement so as to amplify the apparent mass, and meanwhile sliding friction is generated between the inerter unit and the energy consumption unit to dissipate energy. Through a cooperative mechanism of rigidity self-adaptive softening, inerter mass amplification and friction energy consumption, double-frequency vibration control in the elastic and plastic stages of the structure is achieved.

The present application relates to a kind of adjustable three-damping for stay cable and its design method;The adjustable three-damping includes receiving component and damping component;Receiving component includes support, lever, connecting rod, receiving rod;Damping component includes support frame, magnetic negative stiffness unit, inertia flywheel, rotary eddy current damping unit and transmission assembly;The present application utilizes lever amplification principle, increases the displacement and speed input to damping component, amplifies the inertial parameter of damping component, equivalent negative stiffness coefficient, equivalent damping coefficient, which makes the present application more sensitive to small vibration, can effectively reduce vibration amplitude, applicable to some high-precision, high-efficiency damping application occasion.By changing the connection state of connecting rod and lever, the inertial parameter, equivalent negative stiffness coefficient, equivalent damping coefficient can be adjusted, and the damping performance of adjustable three-damping can be optimized;Its design method can adjust the inertial parameter, equivalent negative stiffness coefficient, equivalent damping coefficient according to needs.

The application belongs to the technical field of vibration control equipment, and particularly relates to a rotary inertia mass damping passive damping device with apparent mass self-adjustment with displacement. The rotary inertia mass damping passive damping device comprises a self-adaptive inertia mass unit, the self-adaptive inertia mass unit comprises a flywheel, the flywheel comprises a flywheel body, a rotating hole is formed through the middle part of the flywheel body, four sliding grooves are uniformly formed around the flywheel body, and a mass block is slidably connected to the sliding grooves. The application can realize self-adaptive control of structural dynamic response under different intensity excitations. The application can not only ensure that the mass block is in the initial position before each adjustment, prevent the problem of excessive initial apparent mass, ensure the mass balance of the flywheel, and avoid the problems of wear and damage during operation; the application can not only quickly find external large intensity excitation, but also quickly replace the type and weight of the mass block.

The utility model discloses a pull-type universal eddy current tuned mass damper suitable for a wind power tower, which comprises a mass ball and a connecting frame fixed in the wind power tower and provided with a square hole, and the mass ball can swing in the square hole; four channels are formed in the inner wall of the square hole, the adjacent channels are perpendicular to each other, and the opposite channels are parallel to each other; a longitudinal eddy current inerter damping device is arranged in one pair of parallel channels in a sliding manner, and a transverse eddy current inerter damping device is arranged in the other pair of parallel channels in a sliding manner; the mass ball is connected with each eddy current inerter damping device through a traction chain; by means of the traction chain, horizontal vibration of the mass ball is converted into rotating motion of the copper rotating flywheel, the copper rotating flywheel cuts magnetic induction lines to convert mechanical energy into electric energy in an eddy current form, and the electric energy is converted into heat release from the resistance effect of the copper rotating flywheel. Effective dynamic mass of the mass ball can be amplified without additionally adding physical mass, vibration reduction performance is improved, and meanwhile the mass ball has the advantage of being high in durability.

A suspension actuator integrating electromagnetic, hydropneumatic, and inerter characteristics, and a control method therefor. The actuator comprises a piston rod, a guide rod, a spiral groove sleeve, a stator core, and a straight rod; a controllable damping valve assembly is provided in a piston; the bottom end of the piston rod is connected to the piston; the top end of the guide rod passes through the piston and extends into the interior of the piston rod; a spiral groove is formed in the inner circle surface of the spiral groove sleeve; an electromagnetic coil is embedded in a groove of the stator core; the stator core is fixed to the spiral groove sleeve / piston rod; the outer circle surface of the straight rod is sleeved with a permanent magnet; the straight rod is fixed to the piston rod / spiral groove sleeve; damping holes are machined in the piston in the axial direction; the piston rod, the piston, and the stator core divide the interior of the actuator into an upper cavity, a middle cavity, and a lower cavity. By energizing the electromagnetic coil and the controllable damping valve assembly, the suspension can operate in three modes, namely, a passive mode, a semi-active mode, and an active mode. The suspension actuator of the present invention has electromagnetic, hydropneumatic, and inerter characteristics at the same time, thereby widening suspension control bandwidth, and reducing the energy consumption of the electromagnetic system.

The utility model discloses a damper spring inerter power generation device of a train bogie, which comprises an axle box framework and an upper framework, the axle box framework and the upper framework are directly provided with a plurality of groups of outer damper springs, the top of the axle box framework is provided with a stroke outer pipe, the bottom of the axle box framework is provided with a stroke inner pipe, and the stroke inner pipe is inserted into the stroke outer pipe in a sliding fit manner. A power generation device is arranged in the stroke inner pipe, an inerter is arranged at the top of the upper framework and comprises a ball screw, the ball screw penetrates through the upper framework and is inserted into the power generation device of the stroke inner pipe, and the inerter is matched with the power generation device to convert linear motion into rotary motion for power generation. The power generation function is also realized.

The invention discloses an active stabilization and power generation system of a floating type fan and a cooperative control method. The system comprises an inerter power generation subsystem and a hydraulic load regulation power generation subsystem. The inerter power generation subsystem comprises an inerter power generator, a damper sleeve and a disc. The inerter power generator comprises a power generator shell, a stator, a rotor and a ball screw. One end of the ball screw is used for being connected with a mooring cable, and the other end of the ball screw is connected with the disc which is slidably arranged in the damper sleeve. The hydraulic load regulation power generation subsystem comprises a pipeline assembly, a hydraulic generator and a piston type hydraulic cylinder, the piston type hydraulic cylinder is connected between the bottom of the damper sleeve and the disc, and the pipeline assembly can selectively control whether hydraulic oil flows through the hydraulic generator to do work or not. Based on the principle of a hydraulic load-adjusting power generation subsystem and a mass inerter, efficient absorption of motion energy under different working conditions can be achieved, the comprehensive power generation capacity is improved, and the method belongs to the technical field of wind power generation and vibration reduction.

The invention belongs to the technical field of vehicle suspensions, and particularly relates to a multi-mode oil gas-inerter energy feedback actuator and system based on a ball screw and a control method. The device comprises a shell, wherein a rotating motor is mounted on one side of the shell; a driving gear is arranged at one end of the lead screw nut, an upper support and a lower support are installed above and below the driving gear respectively, and a plurality of electromagnetic valves are arranged on the upper support and the lower electromagnetic valve respectively. A piston is installed at the tail end of the lead screw rod, the piston is attached to the inner wall of the shell in the circumferential direction, and a plurality of damping holes are formed in the piston in the axial direction. A reversing transmission wheel set is further arranged in the shell and is in transmission connection with the driving gear and the rotating motor. The lead screw slides downwards, the lead screw nut drives the rotating motor to generate electricity, the hydraulic oil provides inertia force for the suspension, the lead screw slides upwards, the lead screw nut drives the rotating motor to generate electricity, and the nitrogen provides elastic force for the suspension.

A multi-dimensional particle damper pipe network vibration reduction supporting system with an additional inerter comprises two pipelines, axial particle energy dissipation units are installed on the outer walls of the pipelines, and annular MTPD energy dissipation units are fixed to the outer surfaces of the axial particle energy dissipation units. The axial particle energy dissipation units are connected with the universal joint assemblies through transmission linkage mechanisms respectively, the two universal joint assemblies are connected with the two ends of the ball screw inerter synergistic unit respectively, and a plurality of first particle damper assemblies and a plurality of second particle damper assemblies are arranged on an inner cavity of each axial particle energy dissipation unit and the annular MTPD energy dissipation unit respectively. Vibration energy of a pipeline is transmitted to the axial particle energy consumption unit and the annular MTPD energy consumption unit through a pipeline lining, meanwhile, a transmission linkage mechanism and a universal joint assembly convert multi-dimensional vibration of the pipeline into reciprocating motion at the two ends of the ball screw inerter synergistic unit, and inerter synergistic and pipeline multi-dimensional vibration control are achieved. The device has the advantages of compact structure, inerter feedback synergy, good low-amplitude excitation response and the like.

The present application relates to a kind of double-wheel mass synergistic inertial containers, comprising: base, the base has the first support column with the horizontal groove of middle part zone;Along the reciprocating movement of the groove of first support column, translational bar;With the rotation connection of the base, the special-shaped cam, the surface of special-shaped cam is also provided with second sliding slot, movable shaft is arranged in second sliding slot and reciprocatingly moves along it;Swing bar is hinged to one end of translational bar, and the other end is hinged to movable shaft, the side surface of swing bar is also provided with the first sliding slot along its axial direction;Cam is installed above the base and can be rotated, and convex knob is installed in the edge of cam and enters first sliding slot.Compared with prior art, the present application can realize better mass strong synergistic effect, easy to implement, and can be used for special structure space.

The invention discloses an axial force protection type tuning inertial damper, and relates to the technical field of building anti-seismic structures. One end of the elastic device is connected with the other end of the rotary damping device; the axial force protection device comprises a first protection device end plate, a second protection device end plate, a protection device clamped plate and two protection device clamping plates, the first protection device end plate is connected with the other end of the elastic device, and the protection device clamped plate is connected with the first protection device end plate; the two protection device clamping plates are connected through the clamping bolt and clamp the clamped plate of the protection device, and the second protection device end plate is connected with the two protection device clamping plates. According to the axial force protection type tuned inertial damper, damage to the damper or the peripheral structure caused by too large output force can be prevented, and the beneficial effects of being good in reliability, high in energy dissipation capacity, high in adaptability and the like are achieved.

The invention relates to an engine active suspension system and a hybrid inerter control method thereof. The system is formed by connecting an elastic element, a damping element and a multi-stage vibration reduction device in parallel. The multi-stage damping device is formed by connecting an actuating part, an isolating part and a vibrator mass in series. Wherein the actuating part is formed by connecting an active actuator, an elastic element and a damping element in parallel, and the isolating part is formed by connecting an isolating elastic element and a damping element in parallel. The multi-stage damping device executes hybrid inerter control of engine active suspension, and an observer observes a disturbance value and a state quantity while dividing a disturbance frequency; mIC control fuses an extended negative inerter control method and a positive inerter control method, and the extended negative inerter control effect is equivalent to reduction of virtual mass of an engine at a low-frequency position, so that a low-frequency formant moves backwards, and low-frequency vibration of the engine is inhibited. By adopting the technical means of isolating the vibration source at low frequency and inhibiting the vibration source at high frequency, the purposes of inhibiting vibration in a wide frequency domain and remarkably improving the NVH performance of the automobile are achieved.