eryar

RvmTranslator 3.1 is released

摘要: PDMS数据交换, RvmTranslator 阅读全文

posted @ 2016-03-14 23:29 eryar 阅读(1469) | 评论 (1) | 编辑收藏

Tcl internal variables

摘要: Tcl内置变量备忘录。阅读全文

posted @ 2016-03-12 10:51 eryar 阅读(1490) | 评论 (0) | 编辑收藏

OpenCASCADE Ring Type Spring Modeling

摘要: Abstract. The general method to directly create an edge is to give a 3D curve as the support(geometric domain) of the edge. The curve maybe defined as a 2D curve in the parametric space of a surface: PCurve. When you understand the pcurve, you can modeling some interesting shapes, such as bottle neck thread, helix spring, ring type spring. Etc. The paper is focus on the Ring Type Spring Modeling in OpenCASCADE Draw Test Harness by Tcl script.

Key Words. Spring, Helix, Tcl/Tk, 环形弹簧阅读全文

posted @ 2016-03-05 00:51 eryar 阅读(2140) | 评论 (0) | 编辑收藏

OpenCascade Jobs

摘要: OpenCascade Jobs
OpenCascade相关工作信息发布。阅读全文

posted @ 2016-02-24 20:22 eryar 阅读(2158) | 评论 (2) | 编辑收藏

SupportGenius for PDMS

摘要: SupportGenius is used to build pipe hanger and support 3D model in PDMS and also can generate the material report.

SupportGenius用来在PDMS中自动生成支吊架三维模型及材料报表。
程序使用简单；
且不需要配置数据库，部署简单；
可扩展性高，可以方便根据公司标准定制；阅读全文

posted @ 2016-02-18 22:57 eryar 阅读(2190) | 评论 (11) | 编辑收藏

IsoAlgo2.0 is released!

posted @ 2016-01-29 22:58 eryar 阅读(1566) | 评论 (0) | 编辑收藏

OPEN CASCADE编译视频

摘要: 为了帮助OPEN CASCADE新手顺利编译OPEN CASCADE源码，特录制了一个视频，
有了这个视频，OPEN CASCADE的编译再也不麻烦啦！阅读全文

posted @ 2016-01-20 21:49 eryar 阅读(2851) | 评论 (6) | 编辑收藏

Function Set in OPEN CASCADE

摘要: Abstract. The common math algorithms library provides a C++ implementation of the most frequently used mathematical algorithms. These include: algorithms to solve a set of linear algebraic equations, algorithms to find the minimum of a function of one or more independent variables, algorithms to find roots of one, or of a set of non-linear equations, algorithm to find the eigenvalues and eigenvectors of a square matrix. The solver for function set is used widely in extrema value evaluation, poin 阅读全文

posted @ 2016-01-13 19:38 eryar 阅读(1843) | 评论 (0) | 编辑收藏

Happy New Year 2016

posted @ 2016-01-01 19:38 eryar 阅读(1526) | 评论 (7) | 编辑收藏

Interop Excel in PDMS

摘要: Abstract. There are many data stored in Excel during the design procedure. Read data from Excel can do some validation in PDMS, such as check the pressure for a given pipeline. Write Excel can make the MTO export automatically. So interop Excel in PDMS have practice significant.

Key Words. PDMS, Excel, Infragistics, AVEVA .Net 阅读全文

posted @ 2015-12-29 23:37 eryar 阅读(2028) | 评论 (0) | 编辑收藏

pipedata3d–Ladder

posted @ 2015-12-17 20:16 eryar 阅读(1148) | 评论 (0) | 编辑收藏

Apply Newton Method to Find Extrema in OPEN CASCADE

摘要: Abstract. In calculus, Newton’s method is used for finding the roots of a function. In optimization, Newton’s method is applied to find the roots of the derivative. OPEN CASCADE implement Newton method to find the extrema for a multiple variables function, such as find the extrema point for a curve and a surface.

Key Words. Nonlinear Programming, Newton Method, Extrema, OPEN CASCADE 阅读全文

posted @ 2015-12-06 10:47 eryar 阅读(2439) | 评论 (0) | 编辑收藏

RvmTranslator 3.0 is released

摘要: RvmTranslator3.0 [20151205]
----------------
1.Enable multiple RVM files translation; 阅读全文

posted @ 2015-12-05 13:17 eryar 阅读(1685) | 评论 (0) | 编辑收藏

OPEN CASCADE Multiple Variable Function

摘要: Abstract. Multiple variable function with gradient and Hessian matrix is very very import in OPEN CASCADE optimization algorithms. In order to understand these optimization algorithm better, let’s study some basic knowledge about Gradient, Hessian Matrix.

Key Words. Multiple Variable Function, Gradient, Hessian Matrix, 最优化算法, 阅读全文

posted @ 2015-11-29 16:22 eryar 阅读(1768) | 评论 (0) | 编辑收藏

OPEN CASCADE Gauss Least Square

摘要: Abstract. The least square can be used to solve a set of n linear equations of m unknowns(n >= m). The OPEN CASCADE class math_GaussLeastSquare implements the least square solution of the linear equations by using Gauss LU decomposition algorithm. The paper focus on the Least Square method to solve the linear equations.

Key Words. Least Square, LU Decomposition, Linear Equations 阅读全文

posted @ 2015-11-25 22:06 eryar 阅读(2099) | 评论 (0) | 编辑收藏

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