52 results about "Elastic anisotropy" patented technology

A support for a bearing comprises a resilient ring having unevenly spaced inner and outer bumpers. The unevenly spaced bumpers provide anisotropy to the rotor to preclude non-synchronous vibration. The inner bumpers can be ground to provide a vertical offset of the rotor centerline to accommodate the deflection due to the rotor weight. A tangential groove in the outer bumper allows oil passage during ring deflection so that oil can be squeezed out under dynamic load, providing additional viscous damping to the rotor.

Anisotropic nanocomposite hydrogel materials are created using a process in which a hydrogel-forming material is crosslinked in the presence of nanoscale cellulose and subsequently thermally cycled under an applied tensile strain. Such materials are capable of exhibiting high mechanical and viscoelastic anisotropy, increased stiffness when subjected to large strain, and are suitable for a broad range of soft tissue replacement applications. In addition controlled release of bioactive agents properties can be designed into medical devices fabricated from such nanocomposite materials.

Disclosed herein are an anisotropically conductive connector that conductivity of all conductive parts for connection is good, and insulating property between adjacent conductive parts for connection is surely achieved even when the pitch of electrodes as objects of connection is small, and good conductivity is retained over a long period of time even when it is used repeatedly under a high-temperature environment, and applications thereof. The above anisotropically conductive connector is a connector having an elastic anisotropically conductive film, in which a plurality of conductive parts for connection containing conductive particles and extending in a thickness-wise direction of the film have been formed, wherein supposing that the shortest width of each of the conductive parts for connection is W, and the number average particle diameter of the conductive particles is Dn, a value of a ratio W/Dn of the shortest width of the conductive part for connection to the number average particle diameter of the conductive particles falls within a range of 3 to 8, and a coefficient of variation of particle diameter of the conductive particles is at most 50%.

An elastic anisotropic metal matrix thermal barrier coating thickness ultrasonic measurement method belongs to the technical field of ultrasonic nondestructive testing. The elastic anisotropic metal matrix thermal barrier coating thickness ultrasonic measurement method achieves measurement of samples to be tested and reference samples through an ultrasonic pulse echo method C-scan thickness measuring system composed of an ultrasonic C-scan device, a water penetration focusing probe, a digital oscilloscope and a computer and comprises, for elastic anisotropic metal matrix thermal barrier coating sample ultrasonic echo signals, extracting all the delta gamma & gt: 0 in the elastic anisotropic metal matrix thermal barrier coating sample ultrasonic echo signals through a defined correction factor delta gamma, computing the normalization power spectrum Gm (f) of the elastic anisotropic metal matrix thermal barrier coating sample ultrasonic echo signals, reading the resonant frequency fn in the effective frequency band of the Gm (f), and substituting a known thermal barrier coating longitudinal wave velocity c into a sound pressure reflection factor power spectrum resonant frequency expression to achieve elastic anisotropic metal matrix thermal barrier coating thickness measurement. The elastic anisotropic metal matrix thermal barrier coating thickness ultrasonic measurement method effectively overcomes the problem that ultrasonic waveform distortion and dominant frequency migration due to elastic anisotropy of a matrix results in large errors of thermal barrier coating thickness measurement results.

The invention relates to an elastic multi-link linear guide independent suspension which comprises a wheel, a frame, a spring shock absorber system and a steering knuckle, wherein the steering knuckle is connected with the wheel through a hub unit, and the spring shock absorber system is respectively connected with the steering knuckle and the frame through a bulb pair. The suspension also comprises four strip plate shaped elastic anisotropic members, wherein longitudinal axial lines of the first member at the upper side of the suspension and the first member at the lower side of the suspension are in a vertical plane, longitudinal axial lines of the second member at the upper side of the suspension and the second member at the lower side of the suspension are in the same vertical plane, and the two vertical planes are not parallel. The elastic multi-link linear guide independent suspension has the advantages of being capable of restraining the wheel to ensure that the wheel is always in the same straight line during bobbling, effectively reducing the abrasion of a tyre, and being capable of effectively improving control stability, the running smoothness and the riding comfort of the vehicle, and also has the remarkable advantages of simple structure, strong designability, convenience for assembly and regulation and the like.

A method of determining the elastoplastic behavior of components, in particular of gas turbine plants, at high temperatures. First of all, the linear-elastic behavior is determined and the inelastic behavior is taken into account on the basis of the linear-elastic results by using the Neuber rule, the anisotropic characteristics of the components, as occur in particular through the use of single-crystalline materials, are taken into account in a simple manner by using a modified anistropic Neuber rule in the form ${\sigma }^{*2}={\sigma }_{\mathrm{ep}}^2\left(1+\frac{A}{C}\frac{\alpha }{E_R}{\left(\frac{A{\sigma }_{\mathrm{ep}}^2}{{\sigma }_0^2}\right)}^{n-1}\right)$

where

A=inelastic anisotropic correction term, $\begin{array}{c}A=\frac{1}{2}[{F\left(D_{\mathrm{yy}}-D_{\mathrm{zz}}\right)}^2+{G\left(D_{\mathrm{zz}}-D_{\mathrm{xx}}\right)}^2+\\ H{\left(D_{\mathrm{xx}}-D_{\mathrm{yy}}\right)}^2+2L{D}_{\mathrm{yz}}^2+2{\mathrm{MD}}_{zx}^2+2{\mathrm{ND}}_{xy}^2]\end{array}$ where F, G, H, L, M and N are the Hill constants,

• • C=elastic anisotropic correction term, C=D•E⁻¹•D
  • σ*=determined linear stress,
  • σ_ep=estimated inelastic stress,
  • D=direction vector of the elastic and inelastic stresses
  • E⁻¹=inverse stiffness matrix,
  • E_R=reference stiffness,
  • σ₀=reference stress, and σα, n=material constants.

Disclosed herein are an anisotropically conductive connector, by which good conductivity is retained over a long period of time even when it is used in electrical inspection of a plurality of integrated circuits formed on a wafer repeatedly over a great number of times, and thus high durability and long service life are achieved, and applications thereof. The anisotropically conductive connector of the invention comprises elastic anisotropically conductive films, in each of which a plurality of conductive parts for connection containing conductive particles and extending in a thickness-wise direction of the film have been formed. The conductive particles contained in the conductive parts for connection in the anisotropically conductive connector are obtained by laminating surfaces of core particles exhibiting magnetism with a coating layer formed of a high-conductive metal, and the coating layer is a coating layer having a high hardness.

An anisotropically conductive connector, by which expected electrical inspection can be conducted even to a circuit device having a clock frequency of, for example, at least 1 GHz, and an electrical inspection apparatus for circuit devices, which is equipped with this connector. The anisotropically conductive connector includes an elastic anisotropically conductive film having a plurality of conductive parts for connection arranged in accordance with a pattern corresponding to electrodes to be connected and extending in a thickness-wise direction of the film and an insulating part mutually insulating these conductive parts for connection, wherein conductive parts for high-frequency shielding extending in the thickness-wise direction are formed in the elastic anisotropically conductive film. The electrical inspection apparatus for circuit devices includes the above anisotropically conductive connector.

Provided are a probe member, a probe card and a wafer inspection apparatus, by which a good electrically connected state can be surely achieved, positional deviation by temperature change can be prevented, and the good electrically connected state can be stably retained even when a wafer has a diameter of 8 inches or greater, and the pitch of electrodes to be inspected is extremely small. The probe member of the invention has a sheet-like probe, which is composed of a frame plate made of a metal, in which an opening has been formed, and a plurality of contact films arranged on and supported by a front surface of the frame plate so as to close the opening, wherein the contact film is obtained by arranging, in a flexible insulating film, a plurality of electrode structures, and an anisotropically conductive connector, which is composed of a frame plate, in which a plurality of openings have been formed, and a plurality of elastic anisotropically conductive films arranged on and supported by the frame plate so as to close the respective openings, and is arranged on a back surface of the sheet-like probe. The opening of the frame plate in the sheet-like probe has a size capable of receiving the external shape in a plane direction in the frame plate of the anisotropically conductive connector.

Disclosed herein are a probe member for wafer inspection, a probe card for wafer inspection and a wafer inspection apparatus, by which a good electrically connected state can be surely achieved, positional deviation by temperature change can be prevented, and the good electrically connected state can be stably retained even when a wafer has a diameter of 8 inches or greater, and the pitch of electrodes to be inspected is extremely small.

The probe member of the invention has a sheet-like probe, which is composed of a frame plate made of a metal, in which a plurality of openings have been formed, and a plurality of contact films arranged on and supported by a front surface of the frame plate so as to close the respective openings, wherein each of the contact films is obtained by arranging, in a flexible insulating film, a plurality of electrode structures, and an anisotropically conductive connector, which is composed of a frame plate, in which a plurality of openings have been formed, and a plurality of elastic anisotropically conductive films arranged on and supported by the frame plate so as to close the respective openings, and is arranged on a back surface of the sheet-like probe, wherein each of the openings of the frame plate in the sheet-like probe has a size capable of receiving the external shape in a plane direction in the elastic anisotropically conductive film.

Disclosed is a piezoelectric foam formed of elastically anisotropic materials. The piezoelectric foam is defined with a unit cell having a relative density and volume fraction, and deformation specified by subjecting the unit cell to controlled mechanical and electrical loading conditions. Resultant stress and electric displacements field components are measured by capturing a homogeneous coupled response of the unit cell and by computing piezoelectric material constants using the captured homogeneous coupled response, to identify asymmetric and symmetric F1, F2 and F3 type piezoelectric foam structures.