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AssigneeSiemens Aktiengesellschaft
InventorTHORSTEIN STEINKOPFF
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A product comprised of a non-linear piezoelectric materia, in which a plurality of reference points are defined. The product is exposed to a distribution of an electrical field and is characterized by a distribution of characteristic linear moduli over the reference points, whereby each modulus is determined as an increase in a secant reaching, in an associated characteristic curve, from a zero point up to a point corresponding to the reference point. The characteristic curve is projected from a system of characteristic curves that describes relations between the electrical field and loadings characteristic of additional state quantities in the material. In addition, the invention relates to a method for determining a corresponding distribution of characteristic moduli in a corresponding product.
A non-linear piezoelectric material in which a plurality of reference points are defined and which are exposed to a distribution of an electrical field wherein a distribution of characteristic linear moduli over the reference points is determined, for each reference point, as an increase in a secant reaching, in an associated characteristic curve, from a zero point up to a point corresponding to the reference point, whereby the characteristic curve is projected from a system of characteristic curves that describes relations between the electrical field and further state variables in the material.
A method for determining a distribution of characteristic linear moduli in a product made of a non-linear piezoelectric material in which a plurality of reference points are defined, and which is exposed to a distribution of an electrical field, comprising the steps of:
Dependencies are inferred from the claim text.