The ACME Dynamic Motion Seat enhances simulation training for any type of land, sea, or air vehicle by providing high-fidelity realistic motion cues to the crewmember.

Closest-to-real simulation

Closest-to-real simulation is accomplished with:

• Force cueing in four degrees-of-freedom using electric servos. These cues provide realistic kinesthetic (sense of movement) and somatic (skin pressure) conditions using control algorithms designed to duplicate the training vehicle environment.
• Cues provided in four independent axis of control using three axis of movement; vertical, longitudinal, and lateral. Independent motions are applied to both the seat bucket (bucket heave) as well as the seat pan (squab heave). Additionally, the seat back has independent motions in the surge and sway directions. The surge motion provides the motion cues for longitudinal acceleration while the sway motion applies pressure to the trainee's side for lateral acceleration motion cues. Combined seat motion is used to replicate roll and pitch acceleration motion cues.
• A tactile sound transducer placed in the seat pan to provide high-frequency vibrations.
• Belts and harnesses modified to operate with the drive linkage to loosen or tighten as needed to emulate positive or negative G-cueing.

Closest-to-real appearance is accomplished with a seat that is designed to accurately reflect the original seat's:

• Pads/cushions
• Functional inertia reel and restraints
• Adjustments
• Mounting provisions
• Color and decals
• Handles and switches

A single ACME DMS computer (COTS PC) can simultaneously and independently drive multiple seats and accept data from the host computer via several standard real-time interfaces:

• Ethernet network
• Systran SCRAMNet® network
• Custom interface
• VMIC Reflective memory

All actuators, mechanisms and controls are located inside the seat, allowing the appearance of the seat to be virtually identical to the operational system.