531 results about "Radial deformation" patented technology

The invention belongs to the technical field of radial forging machine control, and particularly relates to a high-precision radial forging machine control system and a control method thereof.The method comprises the steps that a technological parameter database is established, dynamic parameters in the forging process are synchronously collected through a multi-source heterogeneous sensor, and workpiece surface temperature field distribution is obtained through an infrared thermal imager; measuring radial deformation through a laser displacement sensor group, and capturing internal defect characteristics of the material by using an acoustic emission sensor; the optimal forging frequency is calculated according to real-time material rheological characteristics, and a model predictive control algorithm is adopted to generate hammerhead motion trail correction; dynamic compensation control is implemented, and the back pressure of the hydraulic system is adjusted through strain rate feedback; and closed-loop quality evaluation is executed, online metallographic analysis is carried out in the forging intermittent period, process parameters are reversely corrected according to the grain size detection result, the fatigue life of the workpiece is predicted based on a digital twin model, and the effects that the whole forging process is dynamically controlled in real time, errors and deviation are effectively eliminated, and the forging precision is improved are achieved.

The invention relates to a spiral bevel gear system dynamics modeling method based on bidirectional fluid-solid coupling, and belongs to the technical field of aviation transmission, and the method comprises the following steps: S1, calculating the radial deformation and deformation speed of an elastic ring through an analytical method; s2, solving a transient control equation of oil film pressure by taking the radial deformation and the deformation speed of the elastic ring calculated in the step S1 as input to obtain ERSFD internal and external oil film pressure distribution; obtaining a rigidity coefficient and a damping coefficient of the oil film through numerical integration; s3, establishing a kinetic model of the spiral bevel gear transmission system by adopting a lumped parameter method, and deducing a differential equation of the gear system; and S4, through the ERSFD oil film dynamic characteristics calculated in the S2, internal excitation and external excitation are comprehensively considered, an ERSFD-spiral bevel gear system coupling dynamic response result is obtained, the modeling method considers the influence of the elastic ring boss structure characteristics and the complex coupling relation oil film-elastic ring current-solid coupling effect, and the accuracy and calculation efficiency of the model are improved to the maximum extent.

The pipeline mounting device based on the natural gas power generation project comprises a fixing unit used for being connected to a pipeline in a sleeving mode, a supporting unit is arranged on the fixing unit, and the supporting unit can adaptively support the fixing unit and the pipeline in a telescopic mode; the adjusting unit is used for adjusting the fixing position of the fixing unit; the restraining unit is used for restraining deformation of the pipeline in the radial direction during thermal expansion. The device is fixed to the ends of pipelines with different diameters, the pipelines are pre-tightened and aligned through the adjusting unit before welding, installation is convenient, after welding, the device is not disassembled, supporting and restraining are conveniently conducted on the pipelines, and the tedious process of pipeline installation is avoided through the integrated structure of pre-tightening installation and supporting and fixing; axial extension and axial rotation of the pipeline are restrained through the adjusting unit and the fixing unit, and radial deformation of the pipeline is restrained through the restraining unit.

The invention discloses a special-shaped pipe quality evaluation method, system and equipment based on industrial Internet of Things, and relates to the technical field of pipe quality monitoring, and the method comprises the following steps: respectively obtaining end face images of two ends of a corresponding target special-shaped pipe; wherein the cross section of the target special-shaped pipe is oval, a strip-shaped groove is formed in the outer wall of the target special-shaped pipe in the axial direction of the target special-shaped pipe, and a plurality of blind holes are formed in the outer wall of the target special-shaped pipe in the axial direction of the target special-shaped pipe; according to the two end face images, the bottom face gradient of the strip-shaped groove is obtained; obtaining the radial deformation degree of the target special-shaped pipe according to any end face image; acquiring pressure data corresponding to the plurality of blind holes, and acquiring the depth non-standard rate of the blind holes according to the plurality of pressure data; according to the bottom surface gradient, the radial deformation degree and the depth non-standard rate, obtaining a quality evaluation score of the target special pipe; according to the quality evaluation score, whether the target special-shaped pipe is qualified or not is judged, and the method has the advantage that the quality detection accuracy of the special-shaped steel is improved.

The invention provides a cold-state blade tip gap design method which comprises the following steps: S1, establishing a blade thermal-state design model and a flow field grid, and enabling the blade thermal-state design model to have an equal blade tip gap structure; s2, converting the blade thermal state design model into a cold state blade initial model; s3, calculating the thermal-state radial deformation of the blade tip by using a computational fluid mechanics method; and S4, subtracting the blade tip thermal-state radial deformation from the blade tip height of the blade thermal-state design model to obtain a cold-state blade correction model. According to the method, the local height and the surface shape of the blade tip of the turbine movable blade in the cold state are obtained through reverse deduction by calculating the local deformation of the blade in the main working state of the turbine movable blade, and therefore it is guaranteed that the blade tip gap is uniform in the working state of the movable blade.

The invention discloses a design method for the thickness of a single-layer socket and the thickness of a composite socket of a socket type pipe. The design method for the thickness of the single-layer socket comprises the steps that a1, a differential equation of radial deformation of a circular ring and a general solution of the differential equation are obtained; a2, calculating a calculation formula of the maximum radial deformation amount of the circular ring; a3, solving the minimum thickness of a single-layer socket; the outermost layer of the composite bellmouth is set as a base layer, other layers are set as non-base layers, and for a multi-layer structure in the composite bellmouth, the design method comprises the following steps: c1, obtaining a circumferential stress calculation formula of any non-base layer; step c2, determining the relationship between the thickness of any non-base layer and the thickness of the base layer; and c3, calculating the thickness of the non-base layer and / or the base layer. By means of theoretical analysis and calculation, the single-layer socket minimum or approximate minimum thickness meeting the deformation requirement and the composite socket minimum or approximate minimum thickness meeting the strength requirement of socket pipes with different pipe diameters can be obtained.

The invention relates to the technical field of deformation detection, in particular to a method for measuring the deformation of a rotary body part, which comprises the following steps of: arranging measuring points on a target rotary body part, and performing dotting measurement by using a three-coordinate measuring instrument to obtain dotting data which are three-dimensional coordinates; based on the dotting data, calculation is carried out, and deformation information of the target rotary body part is obtained, the calculation comprises the steps of determining a data source, normalizing coordinates, converting a coordinate form, sequencing path measuring points, compensating a measuring head, calculating a position-error function, calculating all-directional axial deformation and radial deformation, speculating all-position deformation, and performing any combination calculation in multi-coordinate system data integration. According to the invention, the deformation of the rotary part can be measured conveniently, quickly and efficiently.

The invention provides a method for calculating the air gap change of a single-rope winding type permanent magnet outer rotor elevator under a variable load effect. The method comprises the following steps: establishing a rotor roller mechanical model of the single-rope winding type permanent magnet outer rotor elevator under variable-speed and variable-load conditions; the resultant force borne by the roller is solved when the common influence of the external steel wire rope positive pressure and the internal radial electromagnetic force is considered; calculating the air gap change induced by the radial deformation of the rotor roller in the winding process of the steel wire rope; establishing a stator core mechanical model, and calculating the air gap change induced by the radial deformation of the stator; calculating an air gap comprehensive variable quantity caused by the common bearing load of the rotor roller and the stator iron core; according to the method, the real-time air gap comprehensive variable quantity of different types of single-rope winding type permanent magnet outer rotor hoists in the variable-speed working condition operation process can be accurately and rapidly calculated according to parameters such as the load size, the diameter and the width of a roller, the number of permanent magnet poles and the number of stator grooves.

The invention discloses a biaxial test device, comprising: a bracket, a container, a sample setting assembly and a press, etc. Before use, the sample is installed between two limit plates. On the basis of applying confining pressure, the press is started, and the pressure rod moves vertically downward and applies a vertical downward load to the sample. When the sample is subjected to the vertical downward load, axial compression and radial deformation will occur. At this time, the radial deformation of the sample on both sides of the limit plates is limited, and expansion occurs on both sides without the limit plates. Subsequently, under the joint action of the confining pressure and the limit plates, the sample undergoes plane strain. Since the container and the limit plates are both in a transparent state, the side section state of the sample when plane strain occurs can be well observed. At the same time, the multiphase mixed fluid in the mixing container penetrates into the rock sample inside the sample and flows out through an output pipeline and is tested and analyzed by external equipment, so that the potential influence of multiphase seepage on the mechanical behavior of rock mass can be studied under plane strain conditions.

The invention relates to the technical field of gas bearings, and provides a high-damping foil gas dynamic pressure bearing which comprises a bearing sleeve, a supporting ring, a supporting foil, a top foil, a pin shaft, a magnet, a steel ball, a spring and a screw. A plurality of supporting rings are arranged in annular grooves axially distributed in the bearing sleeve, each supporting ring is supported by an assembly composed of steel balls, springs and screws which are distributed in the circumferential direction, the outer diameter and the width of each supporting ring are smaller than the outer diameter and the width of each annular groove in the bearing sleeve, and the supporting rings do not make contact with the bearing sleeve. The magnets distributed in the circumferential direction and the axial direction are fixed in the axial groove of the bearing sleeve, gaps are formed between the magnets and the supporting ring, magnetic force acts on the supporting ring, the supporting ring cuts magnetic induction lines generated by the magnets when moving, eddy current is generated to consume energy, and damping is provided for the bearing. The supporting foil pieces and the top foil are fixed to the bearing sleeve and supported by the supporting rings, the supporting foil pieces are used for reducing radial deformation of the top foil between the adjacent supporting rings, and the top foil provides a supporting surface for the dynamic pressure gas film. The assembly composed of the steel balls, the springs and the screws is adopted as a support, damping is provided for the relative movement of the supporting ring and the magnet, good rigidity and damping characteristics are achieved, plastic deformation is not prone to occurring, the air film gap is kept relatively stable, and the bearing capacity and stability of a rotor system are improved.

The invention discloses a tire grounding mark length testing method and device, and relates to the field of tire grounding mark length testing. According to the method, the grounding data and the circumferential strain curve of the tire are obtained through the strain waveform data of the tire movement in combination with the flexible tire body model, and then the grounding angle of the tire is obtained, so that the grounding mark length of the tire is determined in combination with the geometric radius of the tire. By exploring the relation between the grounding angle and the grounding mark length in the tire movement process and excavating the coupling relation between radial deformation and tangential deformation of the tire body circular ring, the accuracy of the grounding mark length is improved. Through the strain waveform data of the tire and by taking the circumferential strain as a medium, the calculation step of the length of the grounding mark is simplified, and the testing efficiency of the length of the grounding mark is improved, so that the performance of the tire can be evaluated and improved based on the length of the grounding mark of the tire, and the driving safety and performance of an automobile are improved.

The invention discloses a rock stratum three-dimensional crustal stress measurement system and method based on a drill hole deformation principle, and belongs to the technical field of crustal stress measurement. The system comprises a computing terminal, a leading device and a strain measurement device, wherein the leading device comprises a control mechanism arranged in a shell and a leading-in mechanism arranged at the top end of the shell; the strain measuring device comprises an opening-closing type radial strain measuring mechanism and an axial strain measuring mechanism, and the opening-closing type radial strain measuring mechanism, the axial strain measuring mechanism and the leading-in mechanism are all electrically connected with the control mechanism. Meanwhile, the invention discloses a method based on the system, radial deformation and axial deformation are measured by adopting the open-close type radial strain measurement mechanism and the axial strain measurement mechanism, and the open-close type radial strain measurement mechanism and the axial strain measurement mechanism are inserted into the test holes of the rock stratum to be measured, so that the strength of the rock stratum to be measured is not limited; the method is suitable for both soft rock strata and hard rock strata, the application range is expanded, and the measurement precision is improved.

The invention discloses an inclined liquid rocket engine thrust frame with a composite constraint structure, and solves the problems that the existing inclined thrust frame only adopts a flexible spring plate supporting structure as a constraint limiting mode, or only adopts a radial deformation adjustable constraint device to reinforce the middle section of a movable frame to resist the radial deformation of the middle section of the movable frame, so that the thrust frame is difficult to deform. The stability of a movable frame and a thrust axis cannot be ensured when a large-thrust engine is tested, and the thrust measurement precision is influenced; comprising a fixed frame and a movable frame, the fixed frame is obliquely installed and fully surrounds a frame structure, the movable frame is of a two-section frustum structure, the movable frame is installed in the fixed frame through a composite restraining structure, and the composite restraining structure comprises a front-section restraining device, a middle-section restraining device and a rear-section restraining device; the front section restraint device comprises a limiting rod, a front restraint limiting roller and a front spring plate; the middle section restraining and limiting device comprises a flexible connection supporting assembly and a belleville spring supporting assembly; and the rear section restraint device comprises a rear restraint limiting roller and a rear spring plate.

The invention relates to the technical field of numerical control machine tool machining, and discloses a dynamic optimization method for metal joint machining parameters of a numerical control machine tool. The method comprises the following steps: acquiring initial characteristic data of a metal joint blank in a numerical control machine tool processing area in real time, wherein the initial characteristic data comprises surface topology distribution data, material hardness gradient data and thermal expansion coefficient data; according to the stage identification code of the current machining procedure, a dynamic constraint rule set bound with the stage identification code is called, and the dynamic constraint rule set comprises an axial cutting force threshold value, a radial deformation tolerance range and a temperature drift compensation coefficient; and finally, based on the initial feature data and the dynamic constraint rule set, an initial machining parameter vector corresponding to a multi-objective optimization function is generated, and the initial machining parameter vector comprises a main shaft rotating speed reference value, a feeding rate weighting factor and a cooling liquid flow proportionality coefficient.

The invention discloses a composite bearing load calculation method considering ferrule deformation. The composite bearing load calculation method comprises the following steps: step 1, enabling m rolling body rows to be equivalent to springs capable of bearing axial load, radial load and torque; constructing a non-rigid shaft system stress schematic diagram of the composite bearing; step 2, calculating the acting load on each inner ring according to the deformation of the mandrel; 3, calculating the Hertz contact deformation of the rigid ferrule under the loading condition; 4, calculating the contact deformation generated by the deformation of the ferrule; 5, solving the total radial deformation of the raceway contact considering the deformation of the ferrule; 6, calculating the load of the rolling body at the position by using the total deformation of the rolling body and the inner and outer ferrules; and 7, verifying the resultant force of each row of rolling bodies and the reliability of the external load borne by the bearing. According to the method, the acting load of each row of rolling bodies of the composite bearing is calculated, and load analysis is performed on the composite bearing under the condition of considering the deformation of the ferrule, so that a more accurate calculation result is obtained and applied to bearing design.

The metal sealing sleeve comprises a metal sleeve part and a metal limiting part, an annular convex part continuously fluctuating in the axial direction is formed on the pipe wall of the metal sleeve part, and the part, protruding out of the pipe wall, of the annular convex part is of a hollow structure; and the metal limiting part radially and outwards extends from one end of the metal sleeve part to the maximum diameter which partially exceeds the annular convex part. By means of good rigidity and plasticity of metal, it is guaranteed that the metal sealing sleeve has high compression resistance, and meanwhile based on the plasticity of the metal, the part, protruding out of the pipe wall, of the annular protruding part is designed to be of a hollow structure, so that when the metal sleeve is plugged into a sealing pipe hole, the annular protruding part is subjected to axial extrusion force, and radial deformation occurs in the sealing pipe hole; and therefore, the annular convex parts which continuously fluctuate in the axial direction jointly form an axial sealing section in the sealing pipe hole, and the sealing effect of the metal sealing sleeve is enhanced.

The invention belongs to the technical field of power system faults, and discloses a turn-to-turn short circuit fault deduction method, system, equipment and medium, and the turn-to-turn short circuit fault deduction method comprises the steps: determining the critical strain value of the fracture of an insulating material based on the axial and radial tensile test data of a winding, and building a mechanical characteristic database of the dependent variable and the insulation fracture; establishing a Poisson boundary value equation set according to the magnetic vector potential and the current density, solving to obtain the magnetic induction intensity, establishing a circuit equation in a short circuit state based on the primary side voltage of the winding, and analyzing the linear relation between the deformation state of the winding and the electromagnetic load to obtain the maximum axial and radial deformation quantity of the winding; and based on the mechanical characteristic database, the turn-to-turn insulation state and the turn-to-turn short circuit condition are judged by combining the axial and radial maximum deformation quantity of the winding. According to the method, when the winding deformation is small, the occurrence condition of the turn-to-turn short circuit fault can be accurately deduced.

The utility model discloses an internal locking mechanism and a telescopic rod, the internal locking mechanism comprises a screw rod assembly, a wedge-shaped forcing block and a locking assembly, the screw rod assembly is configured to be connected with an inner rod, and the screw rod assembly comprises a screw rod part; the wedge-shaped forcing block is connected with the screw rod assembly; the locking assembly comprises a threaded sleeve and a locking sleeve, the locking sleeve is connected with the threaded sleeve, at least part of the locking sleeve is arranged on the periphery of the wedge-shaped forcing block in a sleeving mode, and the threaded sleeve is in threaded fit with the screw rod part and used for converting rotation of the screw rod part into axial movement along the inner locking mechanism and driving the wedge-shaped forcing block to drive the locking sleeve to deform in the radial direction of the inner locking mechanism so as to lock and unlock the outer rod. According to the internal locking mechanism of the telescopic rod, stable locking of the inner rod and the outer rod of the telescopic rod can be achieved, and the structure of the internal locking mechanism is simplified.

The invention relates to a supporting and fixing structure of a long-furnace-tube reactor, belongs to the technical field of waste resource recycling, and solves the problem that a long-furnace-tube reactor in the prior art is prone to permanent deformation in the axial direction and the radial direction. A supporting and fixing structure of a long-furnace-tube reactor comprises a supporting frame arranged outside a furnace tube of the long-furnace-tube reactor in a sleeving mode, one end of the furnace tube is fixedly connected with the supporting frame, and the other end of the furnace tube is a free end capable of axially sliding; the supporting and fixing structure further comprises a sliding supporting unit arranged on the supporting frame on the lower side of the free end of the furnace tube and a sliding hanging unit arranged in the middle of the furnace tube. The sliding supporting unit is of a bearing structure capable of sliding in the axial direction and allows the furnace tube to generate axial displacement when the furnace tube is heated and expanded. And the sliding hanging unit allows the furnace tube to generate axial and radial composite displacement when the furnace tube is heated and expanded. And furnace tube deformation under the high-temperature working condition is avoided.

The invention relates to a method for determining the modification amount of a roller in a tapered roller bearing, and belongs to the technical field of bearings. The method comprises the following steps of: obtaining an initial raceway radius amount of each slice according to each slice corresponding to the inner ring raceway of the tapered roller bearing along the horizontal length of the raceway and a shape equation of the inner ring raceway; determining the radial expansion amount of the raceway of each slice by utilizing the raceway radius determined on the basis of the initial raceway radius amount of each slice and the ferrule interference amount under the working condition of the bearing; and the difference value between the radial deformation amount containing the raceway radial swelling amount of each slice and the minimum value in the radial deformation amount containing the raceway radial swelling amount is superposed to the initial logarithmic modification amount, and the modification amount of the roller in the tapered roller bearing is obtained.

The invention discloses a casing thermal deformation test device and a transient deformation simulation method, and the device comprises a test bench which is used for supporting and positioning a casing; the thermal environment simulation mechanism comprises an inner heating piece used for heating the inner surface of the casing and an outer heating piece used for heating the outer surface of the casing, and the heating temperature of the inner heating piece and the heating temperature of the outer heating piece are independently controlled so as to simulate the inner surface heating process and the outer surface heating process of the casing in actual work respectively; the cooling gas simulation mechanism is mounted on the test bed, is used for communicating with the inner cavity of the casing and is used for introducing cooling gas into the casing to simulate the heat transfer process of the cold air side of the casing in the actual working process; the measuring mechanism is used for monitoring the temperature of the inner and outer surfaces of the casing and measuring the thermal deformation of the casing. According to the invention, the simulation of the radial transient deformation process of the case in the working envelope of the aero-engine can be realized under laboratory conditions, the radial deformation of the case in different states can be accurately obtained, and the measurement precision of the thermal deformation of the case is improved.

The embodiment of the invention discloses a multi-sensor monitoring and compensating method for machining deformation of a large annular part. According to the embodiment of the invention, the feed-forward compensation amount can be generated on the basis of the predicted radial deformation amount of the stress abrupt change area in the surface radial deformation appearing time when the large annular part is machined, and then the feedback compensation amount is generated according to the deviation between the expected machining contour and the actual radial position data of the large annular part; and generating a total compensation amount according to the feedback compensation amount and the feed-forward compensation amount, and adjusting the motion trail of a cutter on the machine tool according to the total compensation amount, and the expected machining contour, the shape tolerance and the position tolerance of the large annular piece. Therefore, according to the embodiment of the invention, deformation caused by stress release can be compensated in real time in the machining process of the large annular part, and the compensation efficiency is improved.

The invention relates to a strain wave gear mechanism comprising: a wave generator which is rotatably mounted relative to a flexspline about an axis of rotation; and a gear which meshes with the flexspline. The problem is solved by a strain wave gear mechanism which is characterised by: at least one deformation measurement sensor which measures a deformation, in particular a radial deformation, of the gear and / or of a transmission component which is connected to the gear or to the flexspline, said deformation being caused by the shape of the wave generator; and an evaluation device which receives measurement signals from the at least one deformation measurement sensor and, on the basis of the measurement signals, determines the rotational position and / or the rotational speed and / or the direction of rotation of the wave generator and / or of a transmission element rotating in accordance with the reduction ratio of the strain wave gear mechanism, in particular of the flexspline, in particular relative to the gear or relative to the flexspline.

To reduce deformation of a stator in an upper-lower direction. A vacuum pump includes a rotor housed in a housing and rotationally driven, plural stages of rotor blades provided in the rotor, and plural stages of stators, each of which is disposed between adjacent ones of the plural stages of rotor blades. The stator has an inner peripheral rib, an outer peripheral rib, and a stator blade connecting the inner peripheral rib and the outer peripheral rib, and is housed in the housing in a state of the outer peripheral rib being sandwiched between spacers. At least part of the outer peripheral rib of the stator is provided with a deformable portion configured to allow deformation of the inner peripheral rib and / or the stator blade in a radial direction.

The invention discloses a rotor blade tip gap design method based on cold and hot state transformation and an aero-engine. The design method comprises the steps that the design working condition of cold and hot state transformation of a fan rotor is determined; performing pneumatic calculation on fan components; designing the structure of the hot-state blade S1; reversely solving the hot-state blade S1 to obtain a cold-state blade S2; designing a cold-state blade structure; performing forward solution on the cold-state blade to obtain a hot-state blade S3; forward solving is carried out on the fan rotor cold-state blade S2 to obtain a corresponding hot-state blade S3; performing error analysis on the thermal-state blade S3 and the thermal-state blade S1; blade tip models of the cold-state blade S2 and the hot-state blade S1 are compared and analyzed, and the front edge radial deformation delta q and the tail edge radial deformation delta h of the fan rotor are obtained; and according to the designed thermal state gap value delta r, the front edge gap Sq and the tail edge gap Sh of the blade tip of the fan rotor blade are obtained.

The invention discloses a casing centralizer with a pipe diameter adjusting function, and relates to the technical field of petroleum and natural gas drilling engineering equipment, the casing centralizer comprises two fixing rings which are symmetrically distributed left and right, the outer surface of each fixing ring is provided with a plurality of fixing seats at equal intervals in the circumferential direction, and each fixing seat is rotatably connected with a connecting plate; an elastic plate is arranged between the left connecting plate and the right connecting plate in the horizontal direction, and the two ends of each elastic plate are rotationally connected with the two adjacent connecting plates respectively. By rotating the adjusting bolt, the driving screw rod and the fixing pipe are in threaded transmission, and the distance between the two fixing rings is accurately controlled, so that the annular supporting frame formed by the connecting plate and the elastic plate generates controllable radial deformation; stepless adjustment of the supporting outer diameter is achieved, different borehole sizes are accurately matched, the problem that a centralizer with a fixed size is insufficient in supporting or difficult to descend is solved, it is ensured that a casing pipe is efficiently centered, and a foundation is laid for forming a uniform cement sheath.

The invention relates to a coaxial connector (10) for connection with a mating connector and for connecting a coaxial cable (11), wherein the coaxial connector (10) has a connector unit (20) and a cable receiving unit (90), wherein the connector unit (20) has a connector insulating housing (60) through which a connector inner conductor (70) extends and which is surrounded by a connector outer conductor housing (40), wherein the cable receiving unit (90) has a cable receiving (100) and a slotted sleeve element (130), and wherein a cable receiving area (120) and a sleeve element receiving area (110) are arranged in the cable receiving (100).For a secure, PIM-stable contact between the coaxial cable outer conductor (14) and the coaxial connector outer conductor housing (40), it is proposed that the sleeve element (130) has a radially outwardly projecting deformation element (139), wherein a radially inwardly projecting deformation block (115) is arranged in the sleeve element receiving area (110), which, when assembled with the sleeve element (130), is axially spaced from the deformation element (139). Inserting the sleeve element (130) into the sleeve element receiving area (110) of the cable receptacle (100) causes a radial deformation of the sleeve element (130) from a position (K1) releasing the coaxial cable outer conductor (14) to a position (K2) contacting the coaxial cable outer conductor (14).

The invention discloses a power turbine rotor structure design method, which belongs to the technical field of aero-engines, and comprises the following steps: arranging an oil film damper according to strain energy distribution and vibration mode; performing structure optimization on the power turbine rotor according to the radial deformation condition of the connection interface; designing the sectional wall thickness of the power turbine shaft; a balance boss is arranged on the outer wall of the maximum displacement position in each order of vibration mode power turbine shaft; and the gap between the central pull rod of the power turbine rotor and the power turbine disc is designed according to the maximum vibration displacement of the power turbine disc. According to the invention, the oil film dampers are arranged at reasonable positions, so that the rotor has good vibration reduction; connection interface deformation coordination calculation is carried out, a connection structure is optimized, and the connection interface is not damaged under long-term work; and designing and optimizing the segmented shaft wall thickness, optimizing and designing the critical rotating speed margin, considering the influence of the limit unbalance on the gap, and realizing a good dynamic balance characteristic.

The invention discloses a composite socket of a socket pipe and a design method for the thickness of the composite socket. The design method for the thickness of the composite socket comprises the steps that a1, a differential equation and a general solution of radial deformation of a circular ring are obtained; a2, calculating a circular ring radial deformation maximum amount calculation formula; a3, the minimum thickness of the socket is obtained; the minimum thickness of the reinforcing ring is independently determined when the reinforcing ring and the base tube socket are made of different materials. The outermost layer of the composite bellmouth is set as a base layer, other layers are set as non-base layers, and the design method of the multilayer structure of the composite bellmouth comprises the following steps: c1, obtaining a circumferential stress calculation formula of any non-base layer; c2, determining the relationship between the thickness of any non-base layer and the thickness of the base layer; and c3, calculating the thickness of the non-base layer and / or the base layer. By means of theoretical analysis and calculation, the minimum or nearly minimum thickness, meeting the deformation requirement, of the composite socket and the minimum or nearly minimum thickness, meeting the strength requirement, of the socket and spigot pipes with different pipe diameters can be obtained.

The invention relates to a device and a method for measuring radial strain and micro-deformation of pyrolysis of oil-rich coal. The device comprises a pressure chamber, and a pressure chamber inner cylinder is arranged in an inner cavity of the pressure chamber; a gas confining pressure chamber is formed between the outer wall of the pressure chamber inner cylinder and the inner wall of the pressure chamber; the annular heating sleeve sleeves the outer side of the pressure chamber; the displacement measuring structures are arranged on one side of the annular heating sleeve, and each displacement measuring structure corresponds to one protruding structure and is connected with the corresponding protruding structure; the stress applying structure is arranged at the lower end of the other side of the annular heating sleeve and is communicated with the gas confining pressure chamber; the temperature sensor is communicated with the gas confining pressure chamber; and the axial load loading mechanism is positioned above the pressure chamber. The radial strain capacity of the coal rock can be conveniently measured under the conditions of high temperature and triaxial stress loading, meanwhile, the radial micro-deformation of the coal rock is monitored, and the problem that the radial deformation is difficult to measure in the stress loading process of the coal rock under the high temperature condition is solved.