128 results about "Structural coupling" patented technology

An interconnection element and a method of forming an interconnection element. In one embodiment, the interconnection element includes a first structure and a second structure coupled to the first structure. The second structure coupled with the first material has a spring constant greater than the spring constant of the first structure alone. In one embodiment, the interconnection element is adapted to be coupled to an electronic component tracked as a conductive path from the electronic component. In one embodiment, the method includes forming a first (interconnection) structure coupled to a substrate to define a shape suitable as an interconnection in an integrated circuit environment and then coupling, such as by coating, a second (interconnection) structure to the first (interconnection) structure to form an interconnection element. Collectively, the first (interconnection) structure and the second (interconnection) structure have a spring constant greater than a spring constant of the first (interconnection) structure.

A two-way communication system for viewers at first and second sites, including an integrated imaging apparatus at the first site for displaying second site images from the second site while capturing first site images from the first site and sending them over a channel to a second site; a structure at the second site coupled to the channel and responsive to images from the integrated imaging apparatus to display such first site images and capturing second site images sending them over the channel to the integrated imaging apparatus; wherein the integrated imaging apparatus, includes, an electronic display having an array of display pixels in which at least one display pixel is partially transparent; and at least one image capture device which is operably associated with the partially transparent pixel.

The invention relates to an integrated diffusion oriented combustion chamber which adopts a full ring combustion chamber structure. The integrated diffusion oriented combustion chamber mainly comprises a crankcase, a combustion liner and an oriented diffuser. The oriented diffuser realizes pneumatic and structural coupling, controls the tangential flow direction and carries out diffusion and speedreduction, and a local return low-speed zone is formed, thereby being good for flame linkage and tangential stable combustion; grading combustion is adopted, and a pre-combustion grade can be selected to work alone and work together with a main pre-combustion grade according to work conditions; the pre-combustion grade utilizes the trapped vortex combustion technology for stable work, goes into amain combustion zone to inflame a main combustion grade through a contraction outlet, and provides a stable ignition source for the main combustion grade; fuel of the main combustion grade is injected to a main combustion grade airflow in the oriented diffuser, atomization evaporation mixing with short distance is realized, and combustible mixture gas with uniform mixing is provided for the maincombustion zone. The invention allows tangential rotational flow of a gas compressor to directly go into the combustion chamber so as to realize tangential highly efficient and stable combustion; in addition, the discharge of pollutants is low, pre-rotation is provided for a turbine, the structure can be simplified, the weight is lightened, and the densification of a gas turbine is realized.

The present invention provides an improved hinge design for a mobile station or other electronic device that simplifies hinge assembly and thus, provides a more cost-effective manufactured product. Moreover, the improved hinge assembly complements the aesthetic appeal of the foldable mobile station and provides less stress on various internal elements. In particular, the present invention includes a foldable mobile station or other foldable electronic device having a first functional component that is coupled to a second functional component via a bi-stable structure. The bi-stable structure functions to bias the first and second functional components in either an open or closed position.

Method and apparatus for controlling an injection mold having a first surface and a second surface includes an active material element configured to be disposed between the first surface and a second surface. The active material element may be configured to sense a force between the first surface and the second surface, and to generate corresponding sense signals. Transmission structure is coupled to the active material element and is configured to carry the sense signals. Preferably, an active material element actuator is also disposed between the first surface and a second surface, and is configured to provide an expansive force between the first surface and a second surface in accordance with the sense signals. The method and apparatus may be used to counter undesired deflection and/or misalignment in an injection mold.

The invention discloses a magnetic-structural coupling simulation method for a quartz flexible accelerometer based on finite elements, which comprises the following steps: 1,selecting finite element units; 2, building a material model library, which comprises the actions of defining a unit system and inputting the material attribute of each component of the accelerometer; 3, establishing a geometrical model of the accelerometer, which comprises structure simplification and ellipsis, concatenation simplification, geometrical model establishment and attribute assignment; 4, establishing a finite element model of the accelerometer; 5, exerting constraints and loads which comprise magnetic field constraints, structural constraints, constant temperature loads, current density loads and acceleration loads; and 6, carrying out transient magnetic structure coupling simulation on the accelerometer. The method disclosed by the invention has the advantages that both the material nonlinear variation of each component of the accelerometer and the magnetic-structural coupling function are taken into consideration, therefore, on one hand, the optimal design can be performed on the structure of the accelerometer; and on the other hand, the variation model of performance parameters can be established based on the simulation results, and the design cycle and design cost of the quartz flexible accelerometer can be reduced.

Novel and advantageous systems and method for obtaining and/or reconstructing simultaneous computed tomography (CT)-magnetic resonance imaging (MRI) images are provided. Structural coupling (SC) and compressive sensing (CS) techniques can be combined to unify and improve CT and MRI reconstruction. A bidirectional image estimation method can be used to connect images from different modalities, with CT and MM data serving as prior knowledge to each other to produce better CT and MRI image quality than would be realized with individual reconstruction.

Method for joint inversion of geophysical data to obtain 3-D models of geological parameters for subsurface regions of unknown lithology. Two or more data sets of independent geophysical data types are obtained, e.g. seismic and electromagnetic. Then they are jointly inverted, using structural coupling, to infer geophysical parameter volumes, e.g. acoustic velocity and resistivity. Regions of common lithology are next identified based on similar combinations of geophysical parameters. Then a joint inversion of the multiple data types is performed in which rock physics relations vary spatially in accordance with the now-known lithology, and 3-D models of geological properties such as shale content and fracture density are inferred. The computational grid for the last inversion may be defined by the lithology regions, resulting in average geological properties over such regions, which may then be perturbed to determine uncertainty in lithologic boundaries.

The invention provides an aerodynamic-thermal-structural coupling analysis method based on a reduced-order model. The method comprises the steps that an aircraft analysis model is established; an initial aerodynamic thermal reduced-order model is established; an ensemble average relative error of the established aerodynamic thermal reduced-order model is verified; an aerodynamic thermal reduced-order model meeting the design precision requirements is established; the change condition of a structural internal temperature field of an aircraft in the whole trajectory flying process is obtained; flutter analysis of the aircraft under the action of a thermal load is conducted. According to the aerodynamic-thermal-structural coupling analysis method based on the reduced-order model, a reduced-order model method and a point adding method are adopted, the reduced-order model of related physical quantities is obtained rapidly and accurately, the aerodynamic-thermal-structural analysis efficiency is improved, an efficient and accurate analysis result can be provided in the aircraft design process, the product design cost is reduced, the design efficiency is improved, and the product design cycle is shortened.

The invention provides a micro flapping-wing analysis system and method involved with pneumatic and structural coupling properties. The system comprises a main control computer, a server, a structural static property testing system, a structural dynamic property testing system, a pneumatic response analysis system, a structural response analysis system and a coupling response analysis system, all of which are connected to form a uniform integrated body through an optical fiber system. The main control computer is connected with the structural static and dynamic property testing systems and the server; the server is connected with the structural, pneumatic and coupling response analysis systems to control the three systems; professional analysis tools of the three response systems operate respectively, and finally, the analysis results are returned to the server while feedbacks are output. According to the invention, the difficulty of data exchange of the micro flapping-wing design and the comprehensive analysis of the pneumatic and structural coupling properties with two subjects is effectively overcome; the comprehensive analysis of complex problems involved with the pneumatic and structural subjects and automatic coordinated operation are realized; the design cycle of the micro flapping-wing is shortened; the design efficiency is improved.

The invention discloses a dual extreme value response surface method for calculating leaf disc vibration reliability. The dual extreme value response surface method comprises the following specific processes of: determining a factor which influences the leaf disc vibration reliability; analyzing a transferring process between fluid-thermal-structural coupling loads in the influence factor; under the influence of the fluid-thermal-structural coupling loads, carrying out vibration modal analysis and harmonic response analysis on a leaf disc, and obtaining basic parameters for vibration reliability analysis; constructing a dual extreme value response surface method mathematical model for the leaf disc vibration reliability analysis; adopting the dual extreme value response surface method to carry out the leaf disc vibration reliability analysis; and carrying out effective verification on the dual extreme value response surface method. The method is high in calculation speed and accuracy, the change relationship of output response can be visually displayed, and a new approach is provided for reliability engineering analysis.

A support system includes a frame member and a cover magnetically coupled to one another proximate an edge of the cover and in an aligned state. The cover is rotatable with respect to the frame member without any structural coupling therebetween while the frame member and cover remain substantially in the aligned state. A method of supporting a cover with respect to a frame includes magnetically attracting the cover and frame to each other proximate an edge of the cover.

The present invention relates to structural couplings for forming of a variety of structures such as floor and wall panels for buildings and internal structures such as hand rails. The structural coupling comprises a structural component or components (1) provided with coupling leg formations (2) and locking flanges (F) and a channel section (8) which interconnect one with the other by means of a snap fit engagement (12) of the leg formations (2) of the structural component (1) with the channel section (8). This has considerable advantages over the prior art where nuts and bolts were needed to fasten the components together. The use of a common channel section which can be engaged by snap fit action provides an elegant and non-limited method of joining structural components together rather than in a direct fashion as with prior systems.

The invention relates to a magnetic-structural-coupling-field-based transformer winding deformation analysis method. According to the technical scheme, the method comprises the following steps: a transformer magnetic-structural coupling model containing an electromagnetic field model and a structural field model is established and attributes and constraint conditions of the electromagnetic field model and the structural field model are set; a current is loaded on the electromagnetic field model to obtain an analysis result of an electromagnetic field Lorentz force; the analysis result of the electromagnetic field Lorentz force is extracted and is loaded on the structural model as an electromagnetic field load, and deformation of the transformer winding and the stress strength are observed, thereby realizing the analysis of the transformer deformation. According to the invention, a magnetic-structural-coupling finite element analysis method is applied to the transformer winding deformation analysis and thus the analysis on the transformer winding deformation state is realized under the circumstances that no power failure occurs and no cover suspending needs to be carried out, so that work of field testing and cover suspension examination and the like can be avoided. On the premise that the analysis accuracy is guaranteed, the work load is reduced and the operation and maintenance costs are saved.

A weapons cable retention device is used for separating an electrical connection, and retaining a cable and an electrical connector coupled to an aircraft, when a munition, such as a bomb or a missile, is released from the aircraft. The cable retention device includes a structural coupling for coupling to the aircraft, a rod having an adjustment mechanism for adjusting the length of the rod, and an attachment mechanism for attaching to the electrical connector. The cable retention device provides a substantially rigid coupling to secure the electrical connector. The cable retention device may be configured so that the attachment mechanism engages lanyard holes of a standard electrical connector. According to one embodiment, the structural coupling may include a collar that receives a bail bar on the aircraft structure through a hole therein.

This invention is directed towards assemblies of electrical or electronic circuit boards. More specifically, the present invention relates to an assembly for housing multiple computer circuit boards. The assembly include a housing that has several railing coupled to the housing. A connector is structurally and electrically coupled to the railings for hanging the computer circuit boards. Structural coupling between the connector and the railing is accomplished by placing the connector in contact with the railing in a file hanging method. This contact also creates an electrical coupling and establishes an electrical connection between the connector and the railing.

The invention provides a focusing performance analysis method for a grazing incidence optical system based on X-ray optical simulation. The method fully considers characteristic information of X-ray photon energy and reflectivity, irons out a defect in the prior art that only single-energy X-ray photons are considered and the reflectivity is not considered, can achieve engineering actual condition closer to X-ray pulsar navigation apparatus, and improves the efficiency of X-ray optical simulation and analysis. The method can achieve the analysis of the focusing performance of an optical system under the conditions of thermal deformation, structural deformation or thermal-structural coupling deformation, and obtains the mean square root radiuses of a disc of confusion of the optical system, 100% energy concentration ratio and 50% energy concentration ratio under different conditions, thereby achieving the quantification of impact degree on the focusing performance of the optical system from different deformations, and providing support for the reliability design and optimization of a product.

A method for biological signal analysis, including providing a multidimensional sensor array disposed at a position for sensing biological data associated with a person, wherein the multidimensional sensor array includes a plurality of sensors and each sensor of the plurality of sensors is mechanically coupled to a common structural coupling material. The method including selectively receiving an output from each sensor of the plurality of sensors, processing the output from each sensor of the plurality of sensors and outputting a biological signal based on the processing.

The invention discloses an establishment method for a steel box beam welding residual stress and structural stress coupling calculation model, which comprises the steps of: carrying out simulation ona long-span bridge steel box beam system, and establishing a steel box beam section model; by utilizing a submodel method, establishing a top plate longitudinal rib welding detail local fine model; embedding the obtained top plate longitudinal rib welding detail local fine model into the steel box beam section model to obtain an integral steel box beam multi-scale model; and by adopting a thermal-structural coupling method, carrying out simulation of a temperature field and a stress field in the top plate longitudinal rib welding process on the integral steel box beam multi-scale model and carrying out simulation of a vehicle load, and calculating to obtain a true stress time interval of steel box beam welding details. The establishment method is simple in modeling, efficient in calculation and accurate in result when being used for fatigue load effect analysis of a flat steel box beam, provides a more reasonable calculation model and establishment method for structural design of a large-scaled orthotropic steel bridge deck and fatigue design of welding details, has very high practical value and can be widely popularized and applied.

The invention provides a dual-modal equation-based dynamic response analysis method for a random noise environment. The method comprises the following steps of (1) dividing a structure and a vocal cavity in an acoustic-structural coupling system into different subsystems; (2) calculating modes of the structure subsystem and the vocal cavity subsystem; (3) calculating coupling parameters between the modes in the adjacent subsystems; (4) establishing a dual-modal equation of the coupling system; (5) through preprocessing, obtaining a cross-power spectrum of generalized force loads on the modes of the subsystems under the action of random loads; (6) calculating the dual-modal equation to obtain a cross-power spectrum of participation factors of all the modes; and (7) through modal superposition, calculating a random acoustic-structural coupling response of the system. The random dynamic response analysis method provided by the invention is the dual-modal equation-based dynamic response analysis method for the random noise environment. According to the method, the system is divided into the continuous coupling subsystems, and random vibration of the system is described by using the modes of the subsystem in a limited frequency band; and the analysis efficiency of the method is higher than that of a conventional finite element method.

The invention provides a numerical simulation method for a silicon carbide ceramic ordinary pressure solid phase sintering process. The method comprises the following steps of (1) building a thermal viscoelasticity constitutive model of the silicon carbide ceramic ordinary pressure solid phase sintering process; (2) building a finite element analysis model; (3) defining a sintering creep constitutive equation; (4) performing transient thermal structural coupling nonlinear simulation analysis to obtain temperature field distribution and a densified contraction amount on a silicon carbide ceramic product; and (5) through comparison with test data measured by a real-time observation furnace, verifying the correctness of the thermal viscoelasticity constitutive model and the finite element analysis model. According to the method, the technical problems that deformation and temperature distribution states on the ceramic product cannot be measured in real time in an existing silicon carbide ceramic ordinary pressure solid phase sintering process and targeted sintering process parameters and process measures cannot be accurately set and formulated for silicon carbide ceramic products in different size and structure forms are solved.

The invention discloses a determination method for a steel bridge structure detail S-N curve considering welding residual stress. The method includes the following steps that the welding residual stress of steel bridge structure details is acquired through a thermal-structural coupling analysis method; the influences of mean stress on structure fatigue strength are considered through a Goodman formula, and a material S-N curve correction formula considering the welding residual stress is derived; the fatigue life of structure detail weld toes under different stress level fatigue loads is calculated according to the material S-N curve considering the welding residual stress, the corresponding relationship between structure detail nominal stress and the fatigue life of the weld toes is established, and the steel bridge structure detail S-N curve considering the welding residual stress is acquired. The influences of welding residual stress specific values on steel bridge structure detail fatigue characteristics are considered, the anti-fatigue design of a steel bridge is safer, and traditional full-size or reduced-scale fatigue model tests consuming a large quantity of manpower, material resources and financial resources are avoided.

A method for controlling a boom (11) for in-flight refueling for increasing the damping of its displacement by means of a movement of control surfaces (16) related to its angular velocity, that comprises the following steps: a) At least two sensors (32, 33) are arranged in two sections of the boom (11) positioned on opposite sides of the valley (41) of the dominant flexible mode (40) for any length of its telescopic extension (12) and the moduli (D1, D2) of the angular deformations of the dominant flexible mode (40) are determined in them; b) The angular velocities (Q1, Q2) are obtained from the data supplied by said sensors (32, 33); c) The angular velocity Q unaffected by the resonance of the dominant flexible mode (40) is obtained as a function of said angular velocities (Q1, Q2) and said moduli (D1, D2), which eliminates the component of the elastic movement of the dominant flexible mode (40). The invention also relates to a control system and a computer program for executing said method.

The invention discloses a wind turbine blade aerodynamic structure coupling design method which comprises the following steps: 1) inputting design parameters including unit related parameters and geometric design parameters; 2) blade geometric parameter design: generating wind power blade chord length distribution, torsion angle distribution and airfoil profile relative thickness distribution through main parameterization; 3) blade aerodynamic load calculation, (4) blade rigidity calculation based on database interpolation, (5) blade waving deformation calculation and (6) data screening and determination of a final design plant. The design, research and development efficiency of the wind turbine blade can be greatly improved, the number of iterations in blade design is reduced, and finallyblade loads and blade mass are reduced.