摘要:
A method of supporting a user in mechanically analyzing a performance of an object, including the steps of: graphically displaying a generalized model which is constructed as a numerical analysis model for the object such that the generalized model has been generalized with respect to at least configuration of the object, and has been specialized with respect to a function of the object; displaying an item for letting the user enter data in order to define a specialized model which is constructed as a numerical analysis model for the object by specializing the displayed generalized model with respect to the at least configuration thereof; and mechanically analyzing the performance of the object, on the basis of the specialized model defined, a numerical analysis approach predetermined in correspondence with the function of the object, and a numerical analysis condition.
摘要:
The design domain of an object to be designed is discretized by a plurality of nodes (10), and adjacent nodes and non-adjacent nodes are connected by beam elements (12). Optimization is performed on a design model constructed from the nodes (10) and beam elements (12), to obtain an initial design shape. When maximizing stiffness, the sensitivity of the stiffness matrix is determined, the cross sectional area of the beam elements with high sensitivity is increased, and the cross sectional area of the beam elements with low sensitivity is either reduced or set to zero so that low sensitivity beam elements are substantially removed. By constructing the design model using a plurality of beam elements, a reasonable shape satisfying the boundary condition can be obtained.
摘要:
A motion converting device includes a plurality of branched elements. Each branched element includes a base beam, an intermediate beam, and a coupling beam. The base beam is elastically deformable, and one end of the base beam is fixed such that the base beam is slanted with respect to a base. The intermediate beam is also elastically deformable, and one end of the intermediate beam is fixed to the base beam at a position which is offset from a central portion of the base beam towards another end of the base beam. The coupling beam is likewise elastically deformable, and one end of the coupling beam is fixed to the same position as the intermediate beam. At each of the branched elements, the other end of the base beam is fixed to another end of an intermediate beam of another branched element, such that the plurality of branched elements is disposed in a loop-like arrangement.
摘要:
An optical head and supporting apparatus has an optical head for irradiating a parallel beam in a direction perpendicular to a recording surface of an optical disk, an objective lens rigidly mounted on the optical head for receiving the parallel beam from the optical head, tracking drive coils for driving the optical head over the whole recording range in a first direction transverse to the recording tracks of the optical disk, focusing drive coils for driving the optical head in a second direction perpendicular to the recording surface of the optical disk, and a support mechanism made of wire-shaped elastic bodies for supporting the optical head freely movably in the first and second directions over the whole recording range in the first direction of the optical head. The support mechanism is fixedly mounted through elastic bodies on a part of a structural body independent of movement of the optical head. Seek, tracking and focusing movements of a beam spot can be achieved in such a way that the wire-shaped eleastic bodies are elastically deformed by forces developed through the tracking drive coils and focusing drive coils thereby to move the optical head two-dimensionally.
摘要:
A magneto-optical recording and/or reproducing apparatus includes an optical head for providing a light spot for recording, reproducing and erasing of a magneto-optical disc, a magnetic head which is disposed at a position opposing the optical head with the magneto-optical disc therebetween and which provides a magnetic field for recording and erasing while maintaining a substantially constant distance from the magneto-optical disc by effecting a lift obtained by an air flow generated by the rotation of the disc, a loadbeam which has the magnetic head on its one end and serves to provide a force caused by elastic deformation to the magnetic head to thereby be balanced with the lift thus obtained, and a moving mechanism connected to the loadbeam. Approaching or evading the magnetic head to or from the magneto-optical disc can be realized by deforming the moving mechanism.
摘要:
An objective lens actuator is provided which is equipped with an actuating mechanism for actuating an objective lens mounted on a lens holder of an apparatus adapted to write or read information into or from a recording medium. The actuator moves the lens and its holder in two directions, one direction being substantially parallel to a surface of the recording medium such that the objective lens makes turning motion about a pivot axis oriented substantially normal to the surface of the recording medium and the other direction being vertical, with the lens and holder sliding vertically relative to the pivot axis. The actuator is equipped with at least one parallel driving coil for driving the movable section in the parallel direction and with at least one parallel driving magnetic circuit for imparting a magnetic flux to the parallel driving magnetic circuit. The actuator is arranged such that both drive forces, which are generated as a result of respective actions of electric currents flowing through at least two faces of the parallel driving coil and magnetic fluxes of the parallel driving magnetic circuit, constitute turning forces for turning the objective lens about an axis in the same rotational direction, thereby enhancing driving precision.
摘要:
A process is disclosed for estimating by a computer a relationship between geometric distortion of an element used for approximately representing the shape of an object to be analyzed by a finite element method, and an analysis error which occurs, due to the geometric distortion of the element, in analysis results of the object by the finite element method. The process includes: assuming at least one deformation mode occurring in the element upon deformation of the object, in the form of at least one of tension, bending, shear, and torsion; and estimating the analysis error associated with the geometric distortion, for each of the at least one assumed deformation mode.
摘要:
According to the invention, a milk protein product is provided. The milk protein product has water-dispersible and hydrophilic properties and contains substantially no serum. The milk protein product is obtained by coagulating milk under a flowing condition at a predertermined pH-temperature range to obtain a coagulum and then separating the coagulum.
摘要:
A process is disclosed for estimating by a computer a relationship between geometric distortion of an element used for approximately representing the shape of an object to be analyzed by a finite element method, and an analysis error which occurs, due to the geometric distortion of the element, in analysis results of the object by the finite element method. The process includes: assuming at least one deformation mode occurring in the element upon deformation of the object, in the form of at least one of tension, bending, shear, and torsion; and estimating the analysis error associated with the geometric distortion, for each of the at least one assumed deformation mode.
摘要:
A lens drive device for an optical information recording and/or reproducing head, which has a cylindrical lens holder for the support of an objective lens assembly and a tubular guide bearing receiving the lens holder for sliding and rotary motions in a direction parallel to and about the longitudinal axis of the lens holder. The device also has magnetic yokes positioned on respective sides of the guide bearing and each having tracking and focusing coils wound therearound. The lens holder has two permanent magnets embedded therein with their respective different poles exposed radially outwardly from a peripheral surface of the lens holder. The guide bearing has two windows defined therein at respective locations corresponding to the respective positions of the permanent magnets in the lens holder. When the focusing coils on the respective yokes are energized, the lens holder can be driven in a focusing direction parallel to the longitudinal axis of the lens holder, while when the tracking coils on the respective yokes are energized, the lens holder can be driven in a tracking direction generally perpendicular to the longitudinal axis of the lens holder.