375 results about "Elastic distortion" patented technology

The invention provides a macroscopic finite element simulation analysis method and device for a sealing element considering plastic deformation, and belongs to the field of sealing element design. The method comprises the following steps: acquiring an engineering stress-strain curve of a plastic material in a compression state; converting the engineering stress-strain curve into a real stress-strain curve; determining a yield limit, and taking a strain point corresponding to the yield limit as a demarcation point of elasticity and plastic deformation; an elastic section of a real stress-strain curve is extracted, the elastic modulus is calculated, and the Poisson's ratio is obtained through axial and transverse strain measurement in a uniaxial compression test; a true stress-strain curve plastic section is extracted, and a multi-linear isotropic hardening model is established; constructing a complete elastic-plastic constitutive model covering the elastic deformation area and the plastic deformation area; the stress distribution, the strain response and the contact performance of the plastic sealing element in a compression deformation state are simulated. According to the method and the device provided by the invention, the problem that the result does not conform to the reality due to the fact that only elastic modulus and Poisson's ratio are used in existing sealing element simulation can be solved.

The present invention relates to an electrically conductive contact pin provided with an elastic portion, wherein the elastic portion includes: a plurality of straight portions; and a plurality of curved portions connecting the straight portions adjacent to each other above and below, and further includes a slit portion for dividing the curved portions into split beam portions, a stopper for limiting an elastic deformation position, or a groove portion for forming a cut portion on the inner surface of the curved portions. The purpose of the present invention is to improve the inspection reliability of an inspection object and to prevent damage to the inspection object by facilitating elastic deformation.

The utility model relates to the technical field of aperture devices, and relates to an aperture module, a lens device and photographic equipment. The aperture module comprises a fixing seat and a rotating disc, the fixing seat is provided with an inner cavity, the rotating disc is axially and rotatably arranged in the inner cavity, a containing groove communicated with the inner cavity is further formed in the fixing seat and is opposite to the rotating disc, a gap is formed between the rotating disc and the fixing seat, a silencing part is installed in the containing groove, and at least part of the silencing part extends into the inner cavity through the containing groove. And the silencing part penetrates through the gap to be in contact with the turntable, and is extruded by the turntable to generate elastic deformation. The rotary disc can rotate around the central axis in the inner cavity relative to the fixing base under the action of external force, meanwhile, the rotary disc also rotates relative to the silencing part, the rotary disc is indirectly connected with the fixing base through the silencing part, vibration of the rotary disc is absorbed through elastic deformation of the silencing part, and then the purposes of shock absorption and noise reduction are achieved when the aperture module acts. And the requirement of photographic equipment on silencing of the aperture during video recording is met.

The invention discloses an oversize structure deformation detection method and system, a medium and a program product, and the method comprises the steps: collecting multi-source detection data and deformation detection data of a structure in a maximum load period and a minimum load period; calculating a deformation difference value to obtain a deformation difference value range; in the deformation difference value range, the load transportation equipment is controlled to apply and unload a preset load according to a preset load step length; acquiring deformation data under each preset load step length to obtain deformation recovery process data, and determining an elastic deformation interval according to the deformation recovery process data; when the deformation detection data is within the elastic deformation interval, the load transportation equipment is controlled to unload the structure according to a preset unloading step length, and the deformation recovery rate is calculated; and when the deformation recovery rate is lower than a preset threshold value, determining the corresponding deformation area as a key monitoring area. The method and the device are used for improving the accuracy of structure deformation detection, so that the accuracy and the timeliness of structure safety evaluation are improved.

The invention relates to an aperture structure, in particular to an elastic anti-backlash variable aperture structure and photographic equipment, which comprises a fixing assembly, the fixing assembly is provided with a turntable and an aperture blade, the aperture blade is driven between the turntable and the fixing assembly through a guide structure, and the fixing assembly is provided with an elastic deformation piece. The elastic deformation part abuts against the fixing assembly and the aperture blade so as to limit the rotation position of the aperture blade. The elastic deformation piece is installed on the fixing assembly, the elastic deformation piece abuts against the aperture blade, the rotation position of the aperture blade is limited, the aperture blade is kept in the pressed state in the direction of the acting force under the influence of the elastic acting force of abutting contact, and therefore the aperture blade cannot shake easily at the position of the installation gap; therefore, the movement of the aperture blade can become more stable, noise generated by gap friction collision is reduced, abrasion to the mounting position is reduced, and the aperture adjustment precision is guaranteed, so that the quality of photographing output of photographic equipment is guaranteed, and convenience is brought to a user.

A mechanical metamaterial adaptive to an applied stress comprises a plurality of meta-capsules arranged in a lattice structure. Each meta-capsule comprises a plurality of rigid parts and a plurality of elastically deformable soft parts coupled to the plurality of rigid parts, such that at least a subset of the plurality of meta-capsules undergo a reconfiguration under the applied stress. The reconfiguration includes a deformation of the soft parts of the meta-capsules in the subset, and a reduction of a gap between adjacent rigid parts of the meta-capsules in the subset, thereby increasing a stiffness of the mechanical metamaterial from a first stiffness to a second stiffness when the adjacent rigid parts come into contact.

To reduce the number of components and the number of fixation manhours for fixing an object component to a mating member.SOLUTION: A fixation structure is a structure for pressing and fixing a core 2 onto a heat sink 1 by a pressing member 3. The heat sink 1 includes engaged parts 11 with which engaging parts 32 can engage. The pressing member 3 includes: the engaging parts 32; elastic deformation parts 32a that are elastically deformed through the engagement of the engaging parts 32 with the engaged parts 11 to exhibit deformation reaction force; and first pressing parts 33 that come into contact with the core 2 to press the core 2 in a direction different from a direction toward the heat sink 1. The pressing member 3 is configured to press the core 2 on the heat sink 1 by being pressed against the core 2 through the deformation reaction force. The first pressing parts 33 are disposed so that the at least two first pressing parts 33 face to each other while sandwiching the core 2.SELECTED DRAWING: Figure 1

According to the machining method and system for the stainless steel rectangular groove plate, the material thickness and elastic modulus parameters of a 316L stainless steel thin plate are obtained, the stress distribution state in the machining process is monitored in real time through a sensor, and if the stress value exceeds a preset threshold value, the cutting force and machining speed parameters are adjusted; a support vector machine algorithm is adopted to analyze the nonlinear relation between the material thickness and the elastic deformation, and an optimized mechanical parameter control model is obtained; according to stress control data output by the mechanical parameter control model, the machining temperature and vibration frequency information of a contact area of a tool and a workpiece is obtained, if the vibration frequency exceeds a stable machining range, the rotating speed and the feeding amount of a spindle are adjusted in real time, and the influence of thermal deformation on the groove depth precision is corrected through a temperature compensation algorithm; and determining a dynamic processing parameter combination adapted to the characteristics of the thin plate. Intelligent control over the thin plate precision machining process is achieved, and the machining precision and efficiency are effectively improved.

A mounting unit (10) for a radar proximity sensor (50) is provided, comprising a mounting body (20) with a through-opening (24) forming the signal exit area; a deformation element (30, 130) which can be inserted into the through-opening (24) in a form-fitting manner and is made of an elastic material in order to shield external forces acting on the radar proximity sensor (50) and to distribute the acting force over the entire surface of the radar proximity sensor (50) onto the fastening body (20), wherein the fastening body (10) has a resiliently elastic shape in order to convert the acting force into movement and deformation and to dampen it, wherein the fastening body (20) is connected to a fixed bearing in order to compensate for the force effect, wherein the fastening body (20) is designed to receive the radar proximity sensor (50), wherein the radar proximity sensor (50) can be mounted on the fastening body (20).

The utility model provides a vibrating screen mesh tensioning device which comprises a tensioning beam which is formed by modularly welding a preformed flange plate, a seat plate, a hollow rectangular pipe and a guide plate. The flange plates are welded to the two ends of the hollow rectangular pipe respectively, the base plate is perpendicularly fixed to the surface of the hollow rectangular pipe and integrally welded to the material guide plate, and the flange plates are detachably connected with side plates of the vibrating screen. The multiple elastic tensioning assemblies are sequentially arranged on the tensioning beam in the extending direction of the tensioning beam. The elastic tensioning assembly comprises an elastic body and a tension adjusting assembly, the tension adjusting assembly is connected with a screen mesh of the vibrating screen, and adjustable tensioning force is generated by compressing the elastic body so as to fix the screen mesh. According to the structure, the dynamic load and energy consumption of the screen body can be remarkably reduced, and light weight is achieved while the bearing capacity is guaranteed. The tensioning force is dynamically adjusted by compressing the elastic body, so that the screen is always in an elastic deformation range, looseness caused by plastic deformation is avoided, and the screen is more stable.

To provide an imaging device with a structure that can suppress size expansion. [Solution] An elastic dustproof member 50 is provided between the base portion 41 and the substrate 30. The elastic dustproof member 50 is cylindrical in shape and has a first frame portion 51 located on the base portion 41 side, a second frame portion 52 that comes into contact with the substrate 30, and a flexible portion 53 that is connected to the first frame portion 51 and the second frame portion 52 and changes the distance between the first frame portion 51 and the second frame portion 52 by elastic deformation. The center line of the cylindrical portion that constitutes the inner wall of the lens barrel 20 is defined as the central axis CL, and the dimensions of the first frame portion 51 and the second frame portion 52 in a direction perpendicular to the central axis CL and also perpendicular to the extension direction of the first frame portion 51 and the second frame portion 52 are defined as the first width dimension W1 and the second width dimension W2, respectively, such that the second width dimension W2 is smaller than the first width dimension W1.

The invention provides a sliding bearing oil film thickness obtaining method and device, and the method comprises the steps: building a micro-contact roughness model of a sliding bearing, and obtaining the contact pressure and contact area of a shaft of the bearing and a bearing bush rough peak according to the micro-contact roughness model; establishing a wear model of the sliding bearing, and obtaining the wear depth hw of the sliding bearing according to the wear model, the contact pressure and the contact area; obtaining the elastic deformation hE of the sliding bearing; according to the included angle between the axis of the sliding bearing journal and the center line of the bearing and the included angle between the circle center connecting line of the front and rear end faces of the journal and the center connecting line of the bearing and the journal, the journal inclination h '0 is obtained; and obtaining the thickness h of the oil film of the sliding bearing according to hw, he and h '0. According to the method, the influence of factors such as abrasion, elastic deformation and journal inclination in the working process of the bearing on the oil film thickness is fully considered, the oil film thickness of the sliding bearing can be accurately calculated and monitored, a theoretical basis is provided for design of the sliding bearing, and reliable operation of the bearing is guaranteed.

The utility model discloses an anti-blocking screening mesh surface structure for screening gravel. The anti-blocking screening mesh surface structure comprises a screening surface with screening holes; hole adjusting bulges are arranged on the axial outer surfaces of the rolling rods, and the rolling rods correspond to the sieve holes which are longitudinally distributed in the same row on the sieve surface; the vibrating screen further comprises a mounting frame with mounting grooves, and the left side and the right side of the screen face are mounted in the mounting grooves of the mounting frame through elastic pieces capable of generating elastic deformation. When the screen holes are blocked by blocking objects, the side edges, away from the screen face, of the electric telescopic rod A and the electric telescopic rod B do not clamp the screen face any more, the screen face is supported in the mounting frame through the elastic pieces, rolling rods rotate to drive hole adjusting protrusions to jack up the blocking objects, the screen face is buffered through the elastic pieces at the moment, and the situation that the blocking objects are jacked up by the hole adjusting protrusions excessively rigidly, and the screen face is damaged is avoided. The problem that in the jacking process of a fixing rod, excessive hard jacking is likely to be generated on a screen, and consequently damage is caused is solved.

This application discloses a method, apparatus, and device for solving the motion response of a circular permeable elastic structure. The method includes: determining the permeability effect, elastic deformation, and coupling equation of fluid motion in the fluid domain of the circular permeable elastic structure; determining the velocity potential of the outer and inner regions of the circular permeable elastic structure; constructing the vertical displacement equation of the circular permeable elastic structure with the vertical coordinates at zero; obtaining the modal eigenvalues ​​of the outer region velocity potential through the outer region velocity potential, and obtaining the modal eigenvalues ​​of the inner region velocity potential through the inner region velocity potential and the coupling equation, which are used as the modal eigenvalues ​​in the vertical displacement equation; and solving for the modal amplitude in the vertical displacement equation. Thus, the vertical displacement of the circular permeable elastic structure can be quantitatively output, providing data support for the vibration control of thin-film floating photovoltaic platforms.

Provided is a ventilation member that is suitable for improving the ease of elastic deformation of an insertion part when the insertion part is inserted into an opening of a housing. This ventilation member (10) is provided with a support body (4a) and a ventilation membrane (2). The support body (4a) includes a base portion (11) and a leg portion (12) that support the ventilation membrane (2). The leg part (12) has a plurality of insertion parts (21) and claw parts (23). In a plane (A) orthogonal to the central axis (O) of the support body (4a) and passing through the root portion of the insertion part (21), when an imaginary circle passing through both end portions (21p) in the width direction of the inner surface (21c) of the insertion part (21) and centered on the central axis (O) is defined as a first imaginary circle (C1), the inner surface (21c) of the insertion part (21) has a protruding part (21d) that protrudes further toward the central axis (O) than the first imaginary circle (C1). The ratio of the length in the radial direction of the claw section (23) to the length in the axial direction of the insertion section (21) is from 0.3 to 0.5 (inclusive). In the plane (A), the maximum length of the protruding portion (21d) in the radial direction is 0.1 mm or more and 1.5 mm or less.

The utility model discloses a shockproof carving tool head with a replaceable blade, and relates to the technical field of carving. The anti-vibration cutter comprises a cutter handle, a cavity is formed in the central axis in the cutter handle, a top anti-vibration mechanism is arranged in the cavity and comprises an elastic piece, the top of the elastic piece is fixedly connected with the cutter handle, a damping fin is fixedly installed at the bottom end of the elastic piece, a containing hole is formed in the damping fin, and the top of the containing hole is fixedly connected with the cutter handle. An opening of the placing hole faces downwards, the bottom of the knife handle is fixedly connected with an external thread pipe, and an internal thread mounting pipe is mounted on the outer wall of the external thread pipe in a threaded mode. Part of vibration generated by the blade is absorbed through elastic deformation of the elastic piece, the cylindrical damping fin dissipates vibration energy through the damping performance, meanwhile, the first gasket, the protruding block, the second gasket and the annular gasket which are made of polyurethane materials are adopted, vibration is absorbed and buffered through good elasticity and damping performance, and the service life of the blade is prolonged. And vibration transmission from the blade to the knife handle and equipment is reduced.

This utility model discloses a displacement-amplified composite friction damper. The upper connecting plate has three sets of equidistant axial connecting ends at its bottom; three sets of equidistant extension plates are located above the core plate, and friction shear components are installed on both sides of the core plate; a lever plate is installed between the axial connecting ends and the extension plates; connecting shafts pass through the axial connecting ends and the extension plates respectively to reinforce the installation of the lever plate; large side plates are fixed at both ends of the lower connecting plate, and the large side plates are tightly fitted to the core plate through the friction shear components. After being amplified by the lever plate, the relative displacement between the upper and lower connecting plates will be greater than the displacement generated by the original building structure. In the small displacement stage: the vulcanized rubber layer absorbs energy through elastic deformation, and the friction plates and steel plates remain relatively stationary, achieving low-frequency vibration isolation. In the large displacement stage: when the vulcanized rubber layer reaches its deformation limit, the steel plate and friction plates begin to slide and rub, significantly improving energy consumption efficiency and adapting to extreme conditions such as earthquakes. The overall structure is simple and easy to install.

The invention discloses a vibration and noise reduction transmission system and rotary excavating power equipment, and relates to the technical field of power transmission, the vibration and noise reduction transmission system comprises a driving device, a driven device and a transmission device, the transmission device is in contact connection with the driving device and the driven device, and the transmission device comprises a pressurizing part and a vibration reduction part; the pressurizing part is a hard part and is used for power transmission, the vibration reduction part is an elastic energy absorption part and is used for generating elastic deformation when the pressurizing part transmits power, and the vibration transmission frequencies of different positions of the vibration reduction part are different. Buffering of collision is achieved through elastic deformation, noise attenuation is achieved from the interior of a sound source, the noise reduction efficiency is improved, vibration energy is transmitted through an elastic structure, fatigue damage to parts is avoided, the force transmission performance and the noise reduction requirement can be considered, the vibration transmission frequencies of different positions of the vibration reduction part are different, the fixed frequency is eliminated and stabilized, and mechanical waves are isolated.

To achieve a writing device that can suppress a writing sound.SOLUTION: A pen-type input device 1 has: a movable part 10 that has a contact member 11, is provided movably in an advance / retreat direction, and retreats upon contact of the contact member 11 with an electronic blackboard 50; a movable part holding body 13 that holds the movable part 10; and an elastic part 20 that is provided on the opposite side of the contact member 11 of the movable part 10 in the advance / retreat direction. The elastic part 20 has a first elastic body 14 and a second elastic body 15, and is elastically deformed by the retreat of the movable part 10 and reduced in thickness in the advance / retreat direction. The first elastic body 14 and the second elastic body 15 are provided adjacent to each other in this order with respect to the movable part 10. The first elastic body 14 is an elastic body having a lower hardness than the second elastic body 15.SELECTED DRAWING: Figure 3

The application discloses a bending machine deformation detection mechanism and method, which comprises a deformation sensor and a control system; the bending machine comprises a lower side plate and a slider located directly above the lower side plate, and the height of the slider can be lowered; a deformation proportionality coefficient K is built in the control system; wherein the deformation proportionality coefficient K is the ratio of the elastic deformation A of the slider to the elastic deformation B of the lower side plate; the deformation sensor is arranged on the lower side plate or the slider and can be used for detecting the elastic deformation of the lower side plate or the slider. The application can realize real-time detection of bending deformation while saving cost. Especially when bending a large-format thick plate, the bending precision of the plate can be improved, and the waste of the plate can be reduced. Especially when the application is equipped with the function of an intelligent bending production line, closed-loop real-time intelligent automatic control can be realized. Further, the application can calculate and compensate the initial deviation of the upper and lower dies, so that the installation and debugging are more convenient.

The invention relates to the technical field of slurry scraping devices, and discloses a slurry scraping device for a pouring type semi-flexible pavement, the slurry scraping device comprises a slurry scraping plate connected with a moving frame, the slurry scraping plate comprises a plate body, a moving part and an inserting part, the plate body is provided with a cavity penetrating through the top surface of the plate body, the plate body is made of a material with elastic deformation capacity, and the plate body is fixedly connected with the moving frame; the moving part is connected to the moving frame and located above the plate body, the inserting parts are connected with the moving part, the number of the inserting parts is the same as that of the cavities, the inserting parts are driven by the moving part to move up and down and are movably inserted into the cavities, and the moving part drives the inserting parts to move to different positions of the cavities. The size of a gap formed between the cavity wall of the cavity and the end of the inserting part is changed, the moving part can drive the inserting part to be completely inserted into the cavity to fill the cavity, the rigidity of the slurry scraping plate is changed by changing the size of the gap between the cavity wall of the cavity and the end of the inserting part, and the size of the gap is linearly changed. Therefore, the rigidity of the slurry scraping plate can be linearly changed.

To provide an image forming apparatus that has improved the attachment and removal properties and positioning properties of developing devices and an intermediate transfer device to a body frame.SOLUTION: An image forming apparatus comprises: developing devices that are attached to a body frame along a predetermined attachment direction; and an intermediate transfer device that is attached to the body frame after the developing devices are attached to the body frame. The developing devices each include an elastically deformable hook 57. The body frame includes a fall-out prevention part 75 to which the hook 57 is locked after being elastically deformed relative to the body frame. The intermediate transfer device includes a regulation part 69b that prevents separation of the hook 57 from the fall-out prevention part 75.SELECTED DRAWING: Figure 5

The invention discloses a stable encoder connecting piece and a processing method thereof, and belongs to the technical field of encoders. The device comprises a mounting plate, a first spring plate, a second spring plate and a third spring plate, the first spring plate is connected with the mounting plate through a first door-shaped punched hole, the second spring plate is located between a second n-shaped punched hole and an inverted n-shaped punched hole, and the third spring plate is arranged in the inverted n-shaped punched hole and provided with a large through hole and multiple sets of encoder fixing holes. According to the invention, the technical problem that the encoder is easy to damage due to radial alternating stress caused by installation concentricity deviation of the encoder is solved. Stress from different directions is buffered through elastic deformation of the multiple stages of spring plates, and in combination with gradient fiber design of the fiber reinforced metal matrix composite material, stable transition from rigid installation to flexible buffering is achieved, stress distribution is optimized, stress concentration is avoided, and therefore the encoder is effectively protected, and the service life of the encoder is prolonged.

The pressing operation unit is provided with: an operation member which can be pressed by an operator; a leaf spring member that imparts an operation touch feeling by means of elastic deformation in response to a pressing operation; and a housing that holds the leaf spring member, the operating member having: an insulator that covers the housing; a first protrusion provided on one surface of the insulator; and a second protruding part which is provided on the other surface of the insulator at a position facing the first protruding part, and which is made of a material different from that of the first protruding part.

The present invention relates to the technical field of wave energy power generation, and particularly relates to a magnetohydrodynamic wave energy power generation system. A magnetohydrodynamic wave energy power generation system includes: a driving mechanism, including a first floating body and a driving rod connected to each other, wherein a housing is sleeved on the outer periphery of the driving rod; a power generation mechanism, disposed in the housing and connected to the first floating body through the driving rod, the power generation mechanism includes an elastic deformation structure and a magnetohydrodynamic power generation structure disposed in the elastic deformation structure, a part of the elastic deformation structure is fixed to the inner wall of the housing, and the first floating body applies a deformation force to the elastic deformation structure through the driving rod so that the magnetohydrodynamic power generation structure generates an induced electromotive force. The present invention provides a magnetohydrodynamic wave energy power generation system that can improve the conversion efficiency of the wave energy power generation system from wave energy to electric energy.

The pen comprises a pen holder (2); and a writing body (3) accommodated in the barrel (2) so as to be movable in the front-back direction. A tip (31) is provided at the tip of the writing body (3), and the tip (31) is disposed so as to be retractable from a tip hole (21) of the barrel (2). An annular support part (4) for supporting the outer peripheral surface of the writing body (3) is provided on the inner peripheral surface of the barrel (2). The annular support section (4) is provided with a support section that supports the outer peripheral surface of the writing body (3). The support portion is movable in the diameter-expanding direction or the front-back direction by contact with the outer peripheral surface of the writing body (3). The annular support part (4) is locally provided with an elastic deformation part which can be elastically deformed preferentially over other parts of the annular support part (4) when the outer peripheral surface of the writing body (3) is in contact with the support part.