Mechanical Construction I: Mechanical Systems and Bolted Assemblies

This lecture covers mechanical systems composed of mobile sub-assemblies, mechanical connections, and kinematic diagrams. It also discusses bolted assemblies, including the function of threads, bolt tightening, and standardized thread types. The instructor explains the importance of thread depth, rigidity, and hole dimensions, as well as the mechanical resistance of bolts. Various types of bolts, washers, and tightening tools are presented, along with the design rules for bolted assemblies. The lecture concludes with a focus on bolt resistance parameters, quality classes, and the selection of appropriate bolts for different applications.