Abstract: A method which can correctly calculate a twist angle in a wire harness, an apparatus for the method, and a program for the method are provided. In the invention, a shape obtained by deforming a reference shape model and superimposing the deformed reference shape model on a deformed shape model is calculated with using a finite element method, while referring physical properties of a wire-like structure. In accordance with the superimposition, also a reference axis of the reference shape model is rotated. An angle formed by the reference axis at the timing when the superimposition is ended, and a clamp axis of the deformed shape model and/or a virtual clamp axis is calculated as a twist angle.

Abstract: A wire harness constituted by bundling a plurality of pieces of line streak members by a predetermined exterior member is regarded to be an elastic body having a circular shape and coupled with a plurality of beam elements maintaining a linearity to form a model and a shape of the wire harness is predicted by utilizing a finite element method. When an end portion of the wire harness is displaced by an input apparatus, a shape 1c physically in equilibrium is automatically calculated by the finite element method and is drawn again. That is, the shape physically in equilibrium is automatically calculated and drawn by following a shape design by well-known operation by CAD at a background thereof.

Abstract: A method of assisting a wiring design of a wiring structure includes the steps of: regarding the wiring structure constituted by a plurality of pieces of line streak members as an elastic body which has a circular section and in which a plurality of beam elements a linearity of which is maintained are coupled with each other; applying information concerning a shape characteristic, a material characteristic and a constraining condition of the wiring structure as a predetermined condition to a finite element method; calculating a predicted shape of the forcibly displaced wiring structure such that the predetermined condition is satisfied; and outputting the calculated predicted shape.

Abstract: A method which can correctly calculate a twist angle in a wire harness, an apparatus for the method, and a program for the method are provided. In the invention, a shape obtained by deforming a reference shape model and superimposing the deformed reference shape model on a deformed shape model is calculated with using a finite element method, while referring physical properties of a wire-like structure. In accordance with the superimposition, also a reference axis of the reference shape model is rotated. An angle formed by the reference axis at the timing when the superimposition is ended, and a clamp axis of the deformed shape model and/or a virtual clamp axis is calculated as a twist angle.

Abstract: A wire harness constituted by bundling a plurality of pieces of line streak members by a predetermined exterior member is regarded to be an elastic body having a circular shape and coupled with a plurality of beam elements maintaining a linearity to form a model and a shape of the wire harness is predicted by utilizing a finite element method. When an end portion of the wire harness is displaced by an input apparatus, a shape 1c physically in equilibrium is automatically calculated by the finite element method and is drawn again. That is, the shape physically in equilibrium is automatically calculated and drawn by following a shape design by well-known operation by CAD at a background thereof.

Abstract: A method of assisting a wiring design of a wiring structure includes the steps of: regarding the wiring structure constituted by a plurality of pieces of line streak members as an elastic body which has a circular section and in which a plurality of beam elements a linearity of which is maintained are coupled with each other; applying information concerning a shape characteristic, a material characteristic and a constraining condition of the wiring structure as a predetermined condition to a finite element method; calculating a predicted shape of the forcibly displaced wiring structure such that the predetermined condition is satisfied; and outputting the calculated predicted shape.

Abstract: The present invention relates to a 2-hydroxypropanediamine derivative represented by the following general formula (1): ##STR1## wherein R.sup.1 and R.sup.2 mean individually a linear or branched C.sub.6 -C.sub.36 alkyl or alkenyl group, X denotes a C.sub.1 -C.sub.6 alkylene or alkenylene group which may be substituted by at least one hydroxyl, sulfonic or carboxyl group and has 1-6 carbon atoms, y.sup.1 is a sulfonic group, a sulfuric acid residue or a carboxyl group, y.sup.2 means a hydroxyl group, a sulfuric acid residue or ##STR2## and n stands for 0 or 1, or a salt or quaternized product thereof, and a detergent composition containing such a compound. This compound is low in irritativeness to the skin and hair and excellent in foamability, and can give a pleasant feeling to the user's skin and the like.

Abstract: Disclosed are a support sheet for folding, fixing and packing a suit of collared clothes and a method of packing the clothes making use of the support sheet. The support sheet is made of a sheet of paper or a plastic and is provided with a number of slits for fixing respective parts of the clothes to the support sheet in a suitably folded state, thus eliminating the use of clips and, particularly, at least needles which may injure the user's finger and damage the clothes during packing and unpacking, so as to shorten the time and reduce the cost of packing work and to enable the user to easily separate the clothes from the support sheet, as well as to reduce the amount of packing material to be wasted after the use.