Workbench中提供了5種接觸類型，單從字面上很難理解這幾種接觸的區(qū)別，下面將幫助中關于這幾個接觸類型的描述翻譯出來，供參考:

1. Bonded（綁定）:這是AWE中關于接觸的默認設置。如果接觸區(qū)域被設置為綁定，不允許面或線間有相對滑動或分離?？梢詫⒋藚^(qū)域看做被連接在一起。因為接觸長度/面積是保持不變的，所以這種接觸可以用作線性求解。如果接觸是從數(shù)學模型中設定的，程序?qū)⑻畛渌械拈g隙，忽略所有的初始滲透。
2. No Separation（不分離）:這種接觸方式和綁定類似。它只適用于面。不允許接觸區(qū)域的面分離，但是沿著接觸面可以有小的無摩擦滑動。
3. Frictionless（無摩擦）:這種接觸類型代表單邊接觸，即，如果出現(xiàn)分離則法向壓力為零。只適用于面接觸。因此，根據(jù)不同的載荷，模型間可以出現(xiàn)間隙。它是非線性求解，因為在載荷施加過程中接觸面積可能會發(fā)生改變。假設摩擦系數(shù)為零，因此允許自由滑動。使用這種接觸方式時，需注意模型約束的定義，防止出現(xiàn)欠約束。程序會給裝配體加上弱彈簧，幫助固定模型，以得到合理的解。
4. Rough（粗糙的）:這種接觸方式和無摩擦類似。但表現(xiàn)為完全的摩擦接觸，即沒有相對滑動。只適用于面接觸。默認情況下，不自動消除間隙。這種情況相當于接觸體間的摩擦系數(shù)為無窮大。
5. Frictional（有摩擦）:這種情況下，在發(fā)生相對滑動前，兩接觸面可以通過接觸區(qū)域傳遞一定數(shù)量的剪應力。有點像膠水。模型在滑動發(fā)生前定義一個等效的剪應力，作為接觸壓力的一部分。一旦剪應力超過此值，兩面將發(fā)生相對滑動。只適用于面接觸。摩擦系數(shù)可以是任意非負值。

以上描述可能有點長，如果難以理解，下面有其他朋友總結(jié)的：

Bonded：無相對位移，如同共用節(jié)點。

No Separation：法向不分離，切向可以有小位移。

后面三種為非線性接觸。

Frictionless：法向可分離，但不滲透，切向自由滑動。

Rough：法向可分離，不滲透，切向不滑動。

Frictional：法向可分離，不滲透，切向滑動，有摩擦力。

最后附上ANSYS Help中的原文，這是最權威的解釋啦：

The differences in the contact settings determine how the contacting bodies can move relative to one another. This is the most common setting and has the most impact on what other settings are available. Most of these types only apply to contact regions made up of faces only.

1. Bonded: This is the default configuration and applies to all contact regions (surfaces, solids, lines, faces, edges). If contact regions are bonded, then no sliding or separation between faces or edges is allowed. Think of the region as glued. This type of contact allows for a linear solution since the contact length/area will not change during the application of the load. If contact is determined on the mathematical model, any gaps will be closed and any initial penetration will be ignored.
2. No Separation: This contact setting is similar to the bonded case. It only applies to regions of faces (for 3-D solids) or edges (for 2-D plates). Separation of faces in contact is not allowed, but small amounts of frictionless sliding can occur along contact faces. [Not supported for Explicit Dynamics analyses.]
3. Frictionless: This setting models standard unilateral contact; that is, normal pressure equals zero if separation occurs. It only applies to regions of faces (for 3-D solids) or edges (for 2-D plates). Thus gaps can form in the model between bodies depending on the loading. This solution is nonlinear because the area of contact may change as the load is applied. A zero coefficient of friction is assumed, thus allowing free sliding. The model should be well constrained when using this contact setting. Weak springs are added to the assembly to help stabilize the model in order to achieve a reasonable solution.
4. Rough: Similar to the frictionless setting, this setting models perfectly rough frictional contact where there is no sliding. It only applies to regions of faces (for 3-D solids) or edges (for 2-D plates). By default, no automatic closing of gaps is performed. This case corresponds to an infinite friction coefficient between the contacting bodies. [Not supported for Explicit Dynamics analyses.]
5. Frictional: In this setting, two contacting faces can carry shear stresses up to a certain magnitude across their interface before they start sliding relative to each other. It only applies to regions of faces. This state is known as "sticking." The model defines an equivalent shear stress at which sliding on the face begins as a fraction of the contact pressure. Once the shear stress is exceeded, the two faces will slide relative to each other. The coefficient of friction can be any non-negative value.

Choosing the appropriate contact type depends on the type of problem you are trying to solve. If modeling the ability of bodies to separate or open slightly is important and/or obtaining the stresses very near a contact interface is important, consider using one of the nonlinear contact types (Frictionless, Rough, Frictional), which can model gaps and more accurately model the true area of contact. However, using these contact types usually results in longer solution times and can have possible convergence problems due to the contact nonlinearity. If convergence problems arise or if determining the exact area of contact is critical, consider using a finer mesh (using the Sizing control) on the contact faces or edges.