abaqus新手求大神指教接触问题中的一些问题

newstein

感觉做接触问题的时候，简单的接触可以比较轻松的解决，但今天建模遇到一个问题，还不会传图，就口述吧，希望能被理解。
我建立一个单偏心蝶阀二维模型，蝶阀转动时会与上下的密封面接触，两个接触对不会同时接触，在哪个角度开始接触也不确定，只是知道大致接触角度，这时候一直出现错误，abaqus的错误是这么显示的：The master surface assembly_surf-rigdidown-down does not exist.

The master surface assembly_surf-rigidup-up does not exist.

The master surface assembly_surf-rigdidown-down does not exist.

The master surface assembly_surf-rigidup-up does not exist.

The master surface assembly_surf-rigdidown-down does not exist.

The master surface assembly_surf-rigidup-up does not exist.

The master surface assembly_surf-rigdidown-down does not exist.

The master surface assembly_surf-rigidup-up does not exist.

Node set assembly_set-ref has not been defined

Node set assembly_set-ref has not been defined

Node set assembly_set-ref has not been defined

Node set assembly_set-ref has not been defined

Node set assembly_set-ref has not been defined

Node set assembly_set-ref has not been defined

Node set assembly_set-ref has not been defined

Node set assembly_set-ref has not been defined

Node set assembly_set-ref has not been defined

Node set assembly_set-ref has not been defined

A boundary condition has been  specified on node set assembly_set-ref but this node  set is not active in the model

A boundary condition has been  specified on node set assembly_set-ref but this node  set is not active in the model

A boundary condition has been  specified on node set assembly_set-ref but this node  set is not active in the model

A boundary condition has been  specified on node set assembly_set-ref but this node  set is not active in the model

Node set assembly_set-ref has not been defined

Node set assembly_set-ref has not been defined

A boundary condition has been  specified on node set assembly_set-ref but this node  set is not active in the model

Node set assembly_set-ref has not been defined

Node set assembly_set-ref has not been defined

Analysis Input File Processor exited with an error.
偷懒都复制下来了，希望有大神能解释一下，非常感谢！