本公司想买一膜结构软件，想先买找形部分，再买计算裁剪部分。请问国内外有那些软件分开买的。请大侠们介绍一下各软件的优缺点及价格。谢谢。

Software
Easy Complete engineering design of lightweight structures. Force equilibrant formfinding. Geometrically non-linear load analysis. Cutting pattern generation. Visualization.  
Surface is a program that allows you to create your 3D tent membrane shape and then works out the shape of the panels that must be cut out and joined together to form that 3D shape. You can either create the shapes directly in the program using the powerful features that allow you to modify the shape by altering tensions within the membrane and it's supporting ridge, valley and edge cables or if you have already developed the shape in other conventional CAD systems you can make use of the extensive patterning and geodesic panel edge finding features of Surface to create any panel arrangement that you want. (Surface Software).   
Patterner is a powerful collection of tools for working with 3D surfaces. Patterner is primarily for the design and manufacture of tents and fabric structures. Powerful manipulation and drawing creation tools make it useful for anyone building complex 3D forms from sheet materials. (Rudi Enos Design).   
Surface Evolver is an interactive program for the modelling of liquid surfaces shaped by various forces and constraints. The program is available free of charge. (Ken Brakke).   
ForTen is the first commercial software specifically developed to calculate and model tensile and fabric structures. Forten is both a geometrical and mathematical modeler that permits to you to obtain the exact building shape, starting from free form 3D mesh, joint conditions or stress conditions. (Europe Engineering Division).   
The Tentnology CAE program provides an easy-to-use solution for design and analysis of tension structures. Operator can generate 3D models of a concept, then apply wind and snow loads to view force, reaction and stress. When satisfied with the results, the user can readily produce cutting patterns for manufacture. (Tentnology).   
MCM-lite is the hassle-free software that lets you create tensile membrane and cablenet structures without mastering complex engineering principles. The complete engineering version of MCM is also available on a limited basis to professional engineers. This version includes full analysis capabilities - large deflection finite element method analysis. (Birdair).   
Engineering Pte Ltd provides a suite of programs for design (according to British standards) and analysis of tension structures: WinCable for cable and cablenet design and analysis and WinFabric for tensioned membrane structures design and analysis.

mibao兄介绍的很详细了，我再补充几句：
1.Surface和Surface Evolver不太好用，操作很麻烦。
2.Patterner不是专业用于膜结构的软件，而且出的裁剪图也不是很科学。
3.MCM是非卖品，不过还是有途径的。
4.Engineering Pte Ltd公司的Windas价格太贵，输入边界也很不方便。
5.Tentnology CAE也是非卖品，他们只提供工程设计咨询。
6.Forten是套不错的软件，用起来很方便，价格也很合理，不过还是有缺陷，我给4颗星。
7.Easy不用说了，性价比很高，王牌，5颗星。

对easy这么推崇, 5颗星?
能有3星就不错了。

我觉得forten的唯一缺陷是找形图在CAD里面不能量面积，这点比较讨厌。

那个号称全球最大的膜结构公司--小日本太阳工业公司用的是它们自己编的软件Images,从介绍来看功能不错,不知你们能不能买到.
它可是专门针对膜结构设计的,找形裁剪都包括了,建议你们去联系购买.

自己编个小程序就很容易解决了。

太阳公司的软件还能和钢结构一起算。功能很强大的。

请参考此网页http://www.tensinet.com/links.php?cat=12

难道5星的easy不能钢、索、膜一起计算么？

当然可以一起算了。

请问你准备出多少钱，我可以帮你联系一下。

上海交通大学的空间结构研究中心有套在国内算是比较成熟的软件，尤其在裁剪方面有自己独特的优势，而且可以分开买的。如果想要可以与我们联系的（提供培训服务的）。
zhangji1060@sina.com
021-52543246

同济大学张其林老师编的3D3S，建模，找形，裁减比较方便。

中国建筑科学研究院结构所空间结构室出了一个膜结构设计软件，MEMBS，集图形交互方式的前处理、找形分析、受荷分析、裁剪设计及绘图于一体的软件，适用于多种形状的索膜结构的模型生成、计算分析和膜结构的裁剪下料设计。
主要功能
    丰富的膜结构网格模板和网格自动划分功能，可方便形成几何模型、定义材料性质、定义荷载、定义边界条件等。
    提供力密度法和非线性有限元法两种找形方法，可针对具体膜结构工程选择使用。
    可进行膜、索、杆、梁等多种单元的共同作用计算，可针对多种荷载组合情况进行受力分析。
    方便的裁剪功能，可布置裁剪线并进行膜片展平、生成裁剪下料图。

工程急需 forten 膜软件
本人在上海，有朋友有这个软件吗
有偿提供
  qq 171261369