Motion platform system

A motion platform system for displacing a top frame in three degrees of translational freedom and three degrees of rotational freedom along and about the three axes comprising:

• a. a base frame;
• b. a middle frame;
• c. a centre column;
• and
• d. six actuators;
• wherein:
• said base frame is connected to said middle frame by three links capable of providing translational freedom to the said middle frame, said centre column and said top frame along the X-axis and Y-axis and sway and surge actuators to control the said translational freedom;
• said middle frame is connected to said centre column by a cylindrical joint capable of providing translational and rotational freedom to the said centre column and said top frame along and about the Z-axis and heave and yaw actuators to control the said translational and rotational freedom;
• said centre column is connected to said top frame by a joint capable of providing rotational freedom to the said top frame about the X-axis and Y-axis and pitch and roll actuators to control the said rotational freedom.

A motion platform system for displacing a top frame in one degree of translational freedom in Z-axis and three degrees of rotational freedom about the three axes comprising:

• a middle frame;
• b. a centre column;
• and
• c. four actuators;
• wherein:
• said middle frame is mounted to the ground rigidly;
• said middle frame is connected to said centre column by a cylindrical joint capable of providing translational and rotational freedom to the said centre column and said top frame along and about the Z-axis and heave and yaw actuators to control the said translational and rotational freedom;
• said centre column is connected to said top frame by a joint capable of providing rotational freedom to the said top frame about the X-axis and Y-axis and pitch and roll actuators to control the said rotational freedom.