How to stop simulink (solidworks exported) model, which is regularly moving without any given actuation?

Hi I have made a solid works assembly model and imported into Matlab 2015. Without any given actuation this assembled model is regularly moving (vibrating). what is the possible solution to stop their initial vibration of movement of the body.

[Franck Donnadieu]

Hello, And what about the gravity? Are you sure that it doesn't the cause of your assembly moving?

[sanjeev kumar]

Gravity part is ok. so, assembly should have to move in only one direction (g=-9.81) not in other direction (g= +9.81).

[sanjeev kumar]

Hello Franck, Do you have any idea? how to define spring stiffness and damping coefficient of different Joints of matlab simulink (like Revolute, Prismatic, Spherical etc.).

[Franck Donnadieu]

Hi it is difficult to say something without having the model under eyes. Can you send a screen shot? Are you sure that no part falls down under the influence of the gravity during the launch of the simulation?

[sanjeev kumar]

Thank u Franck, I have short out my problem of regular moving of body. how to define spring stiffness and damping coefficient of Revolute joint in simulink.

[Franck Donnadieu]

Hello in double clicking the block "revolute joint" you have access in properties of your joint. It is necessary to go to "Internal Mechanics". I have never met this problem. I always leave these values with zero (by default). But I am not a specialist