Turning at full speed the presumption modulo of the projection status information by the blasting machine and the presumption device of projection status information, and the presumption program

摘要

PROBLEM TO BE SOLVED: To provide a method for estimating projection state information by a blasting machine capable of reducing an operation cost and time required for narrowing various conditions for obtaining predetermined projection state information.;SOLUTION: A transfer analysis model wherein an emitted projection material moves by contact with a rotating blade or another projection material is used to estimate the projection state information of the material in the blasting machine. In addition, the method for estimating the projection state information includes a step of inputting initial conditions containing information about dimensions and the rotation of the blade, emission information of the projection material and information of the material with respect to the blade, a step of storing the initial conditions, a step of calculating contact force generated by each projection material with the blade and/or another projection material, a step of analyzing an equation of motion by calculating acceleration of the projection material from the contact force and force consisting of gravity and working to the material to obtain a speed and a position of the projection material a minute time after from the acceleration, and a step of estimating the predetermined projection state information based on the results of a calculating means.;COPYRIGHT: (C)2007,JPO&INPIT