Читать книгу Analysis and Control of Electric Drives - Ned Mohan - Страница 35
EXAMPLE 2‐1
ОглавлениеIn Fig. 2-4a, a mass M is hung from the tip of the lever. Calculate the holding torque required to keep the lever from turning, as a function of angle θ in the range of 0–90°. Assume that M = 0.5 kg and r = 0.3 m.