34### What theoretical frameworks underpin mechanical engineering principles? Understanding the theoretical foundations is crucial for engineers to design, analyze, and optimize mechanical systems effectively. These frameworks encompass principles from physics, mathematics, and materials science, facilitating the comprehension of phenomena like stress, strain, thermodynamics, and fluid dynamics. By delving into theories such as classical mechanics, continuum mechanics, and kinematics, engineers develop robust methodologies for problem-solving and innovation in areas ranging from machine design to aerospace engineering.