University study material for Spacecraft Attitude Dynamics and Control in the Aerospace Engineering degree programme at Politecnico di Milano. The document covers: SAD oral exam questions ± 2025 Part 1 Attitude dynamics and kinematics, disturbances Attitude dynamics Stability of dual spin How to validate dynamics block's output Kinematics Orthonormalization of the DCM [x3] (project related) How to validate kinematic (project related) [x2]
University study material for Spacecraft Attitude Dynamics and Control in the Aerospace Engineering degree programme at Politecnico di Milano. The document covers: SAD oral exam questions ± 2025 Part 1 Attitude dynamics and kinematics, disturbances Attitude dynamics Stability of dual spin How to validate dynamics block's output Kinematics Orthonormalization of the DCM [x3] (project related) How to validate kinematic (project related) [x2]
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SAD oral exam questions ± 2025 Part 1 Attitude dynamics and kinematics, disturbances Attitude dynamics Stability of dual spin How to validate dynamics block's output Kinematics Orthonormalization of the DCM [x3] (project related) How to validate kinematic (project related) [x2] How to validate the Euler kinematics of A312 and A313 rotational sequence. (only A313 can be verified/validated using the analytical solution of spin symmetric satellite). Euler angles, define what they are and how they are used as kinematic parameters(singularities) Euler angles , what they are and write how you obtain the kinematics starting from the definition to the final omega Euler angles, how to model the kinematics and the dynamics using them x2 What is a DCM? DCM, how to obtain kinematics Disturbances How to validate your disturbances? Preliminary estimation of relevance of torques without simulation. (x2) What is the equation for atmospheric drag? SRP torque, what are the sources and what are the formulas for each source (x3) How to compute torque due to SRP how the presence of the earth is taken inside the SRP model Air Drag disturbance torque [x4] Discuss the gravity gradient torque How to model the magnetic field disturbance and how to quantify a first estimation of it (dipole model) Part 2 Attitude sensors and actuators, attitude determination Attitude sensors Magnetic field sensors. What are the different types of magnetometers, how do they work, pros and cons. [x3] Horizon sensor [x3](when scanning sensors are preferred wrt static ones) Different types of gyros, pros and cons (x2) Star sensor (x3) Explain each block of errors applied to the gyro, why can't misalignment error and orthogonality error be added directly? Sun sensors Attitude determination How to validate results from…
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