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Showing 1 to 4 of 4 for “"Moving Mass Actuators"”.
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Mars Precision Entry Vehicle Guidance Using Internal Moving Mass Actuators
… missions. This dissertation develops internal moving mass actuator (IMMA) control systems for improving Mars precision entry guidance of rigid capsules and demonstrating precision guidance capability for HIADs. IMMAs provide vehicle control moments without direct interaction with the external …
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Assessment of moving-mass actuators for hypersonic vehicles with deployable decelerators
This study assesses internal moving-mass actuator configuration options for trajectory control in the hypersonic regime of planetary entry. Trajectory control is achieved by shifting the location of the center of gravity relative to the center of pressure to modify aerodynamic trim conditions. The …
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Hydrodynamic Modeling for Autonomous Underwater Vehicles Using Computational and Semi-Empirical Methods
… their buoyancy and their attitude with moving mass actuators and inflatable bladders, are proving their worth as efficient long-distance, long-duration ocean sampling platforms. Gliders have the capability to travel thousands of kilometers without a need to stop or recharge. There is a …
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Practical Challenges in the Method of Controlled Lagrangians
… is applied to vehicle systems with internal moving point mass actuators. Applications of moving mass actuators include certain spacecraft, atmospheric re-entry vehicles, and underwater vehicles. Control design using moving mass actuators is challenging; the system is often underactuated and …