Dynamic analysis on an aerial work platform using a hybrid CAD approach for satellite testing applications

This paper presents a dynamic analysis using a hybrid CAD model approach, focusing on a motorized adjustable vertical platform's lifting and baseplate loading subsystems as a case study. The hybrid CAD model approach allows for examining mechanism behaviours such as acceleration torque, speed variation, and jerk rates, as well as their impact on the total torque required by the subsystems. The analysis starts by developing 3D and 2D models with velocity profiles, followed by comprehensive analyses. The most interesting part of the study is that while the acceleration torque rate is high, its influence is minimal due to small accelerations and decelerations at approximately -5 × 10-5 m/s3 to 3.1 × 10-5 m/s3 within the subsystem. Additionally, torque requirements for the lifting subsystem remain consistent at 631.22 N·m at the highest position and 364.16 N·m at the lowest position across different speed modes. The study also evaluates jerk rates during acceleration and deceleration to ensure compliance with ISO standards for ride quality. This approach shows promise for developing heavy-duty autonomous aerial work platforms, especially in the space industry, where understanding system behaviours is crucial before the development process begins.

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