发明名称 SIMULATION METHOD FOR MACROMOLECULAR MATERIAL
摘要 A simulation method for a macromolecular material comprises: a first calculation process for computing a Rouse parameter of a coarse-grained model; a second calculation process for computing a Rouse parameter of the a all-atom model; and a convert process for converting a unit system employed in a molecular dynamics calculation made by the use of the coarse-grained model into a unit system employed in the macromolecular chain, based on the Rouse parameter of the coarse-grained model and the Rouse parameter of the all-atom model.
申请公布号 US2014309971(A1) 申请公布日期 2014.10.16
申请号 US201414219699 申请日期 2014.03.19
申请人 SUMITOMO RUBBER INDUSTRIES, LTD. 发明人 UENO Shinichi
分类号 G06F19/00 主分类号 G06F19/00
代理机构 代理人
主权项 1. A computer simulation method for a macromolecular material comprising: a process in which a coarse-grained model of a macromolecular chain modeled by a plurality of beads is defined, a process in which, using the coarse-grained model disposed in a predetermined virtual space, a molecular dynamics calculation is performed, a first calculation process in which a Rouse parameter of the coarse-grained model are computed, a process in which, an all-atom model of an arbitrary macromolecular chain modeled by a plurality of particle models of respective atoms is defined, a process in which, using the all-atom model disposed in a predetermined virtual space, a molecular dynamics calculation is performed by the computer, a second calculation process in which a Rouse parameter of the all-atom model are computed, a convert process in which, using the obtained Rouse parameter of the coarse-grained model and the obtained Rouse parameter of the all-atom model, a unit system employed in the molecular dynamics calculation performed by the use of the coarse-grained model is converted into a unit system employed in the macromolecular chain,wherein the second calculation process comprises an entire-length calculation process for obtaining the entire length of the all-atom model, and the entire-length calculation process comprises a process in which the position of a carbon atom of the all-atom model at one end thereof is fixed relatively to the virtual space, a process in which a carbon atom of the all-atom model at the other end thereof is forced to move away from said one end, while performing the molecular dynamics calculation, so that the all-atom model is forcibly stretched, a process in which the forcibly stretched all-atom model is structurally stabilized by performing a calculation according to a molecular mechanics method, and a process in which the distance between said one end and other end of the all-atom model structurally stabilized is computed as the entire length Lf of the all-atom model.
地址 Kobe-shi JP