请教COMSOL的热——结构耦合的问题

skp666

请问COMSOL4.0的版本在做热-结构（Thermal-Structural Interaction）的时候，能够做双向耦合吗？也就是文献里面常提到的紧耦合，完全耦合？

我看COMSOL的帮助文档（sme_ug.pdf），里面提到的热——结构耦合是one-way coupling，只能温度影响结构变形，而结构变形不影响温度，即热传导不能有变形项，我将原文附下：

The Structural Mechanics Module provides a predefined one-way coupling for

thermal-structure interaction (thermal stress), which combines a solid mechanics

interface from the Structural Mechanics Module with a heat transfer interface from the

Heat Transfer Module or COMSOL Multiphysics; see The Thermal Stress Interface.

By default, COMSOL Multiphysics takes advantage of the one-way coupling and

solves the problem sequentially using the segregated solver: first solve for temperature

and then perform the stress-strain analysis using the computed temperature field from

the heat transfer equation. Note that this approach, using a single iteration, does not

produce a correct result if there are thermal properties that depend on the

displacements (for example, mechanical heating), making it a two-way coupled

problem.

还有一个问题，就是即使是单向耦合，COMSOL能计算热振动问题吗？ 我不仅仅需要热应力，我更加关心的是振动问题（有机械载荷）

czs127

把控制方程推出来，用PDE模式直接输入进去。求解= “OK”  或者你在求解时加上耦合项。

092011235

楼上说的耦合项指的是什么呢？4.1里边没有直接的耦合项加吧

skp666

没人知道吗？