公开(公告)号：US10146212B2

公开(公告)日：2018-12-04

申请号：US15392498

申请日：2016-12-28

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chia-Pei Wang ,  Chien-Chih Liao ,  Hsiao-Chen Ho ,  Jen-Ji Wang

IPC: G05B19/416 ,  B23Q5/04 ,  B23Q5/32

Abstract: A machine tool feed drive design system is provided, which may include a component database, a detection module, a load condition estimation module and a calculation module. The component database may store the specification data of a plurality of feed drive components. The detection module may detect a plurality of operation signals from a machine tool during a period of time when the machine tool had been executing a machining process to a workpiece. The load condition estimation module may calculate a plurality of actual load conditions according to the operation signals and a device specification parameter of a feed drive of the machine tool. The calculation module may select at least one component combination from the feed drive components according to the actual load conditions and the specification data of the feed drive components to serve as an optimized feed drive specification.

公开(公告)号：US10140416B2

公开(公告)日：2018-11-27

申请号：US14965040

申请日：2015-12-10

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chia-Pei Wang ,  Chien-Chih Liao ,  Pei-Yin Chen ,  Hsiao-Chen Ho ,  Tzuo-Liang Luo

IPC: G06F17/50 ,  G05B19/4069

Abstract: A process-orientated design method for machine tool structures comprises the steps of: (A) Defining design conditions including initial configurations, cutting requirements and boundary conditions for the machine tool; (B) Calculating cutting ability to generate information realizing a relationship between a maximum cutting depth and a spindle speed of the machine tool based on the initial configurations and the cutting requirements; (C) Performing an optimization to generate a frequency range for optimization based on the information relating the maximum cutting depth and the spindle speed; (D) Performing structural topology optimization to generate an optimized model based on the frequency range for optimization, the initial configurations and boundary conditions; and (E) Determining whether the optimized model fits the constraint condition; if positive, ends the design steps, and otherwise repeats steps (B)˜(D) until an optimized model fits the constraint condition appears.

公开(公告)号：US20160140269A1

公开(公告)日：2016-05-19

申请号：US14583471

申请日：2014-12-26

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chia-Pei Wang ,  Chien-Chih Liao ,  Pei-Yin Chen ,  Tzuo-Liang Luo

IPC: G06F17/50

CPC classification number: G06F17/5018 ,  G06F2217/08

Abstract: A structural topology optimization design method is provided. A structural topology optimization question is defined to determine at least one set of load and restriction condition and a parameter of lower limit of volume capacity related to a design space model. This model is divided into mesh grids for performing finite element analysis (FEA). Strain energy of each element after FEA is obtained according to the established load and restriction condition and used as a basis for calculating sensitivity of each element. A part of elements is removed or retained according to the degree of sensitivity of each element, and the structural profile and the total volume capacity and total strain energy of residual elements of the structural profile are recorded after each loop was completed. A display interface is used to sequentially show the structural profile and a relationship diagram of structural volume capacity vs structural strain energy.

Abstract translation: 提供了一种结构拓扑优化设计方法。 定义结构拓扑优化问题以确定与设计空间模型相关的至少一组负载和限制条件以及体积容量下限的参数。 该模型分为用于执行有限元分析（FEA）的网格。 根据建立的载荷和限制条件获得FEA后每个元素的应变能，并用作计算每个元素的灵敏度的基础。 根据每个元件的灵敏度去除或保留元件的一部分，并且在每个回路完成之后记录结构轮廓的残余元件的结构轮廓和总体积容量和总应变能。 显示界面用于顺序显示结构轮廓和结构体积容量与结构应变能的关系图。