Inside Nastran, Answer 146 affords superior dynamic evaluation capabilities, together with the power to compute Absorbed Energy (typically known as “abar”) utilizing Frequency Response Features (FRFs). This course of entails making use of calculated forces derived from measured or simulated vibrations (represented by FRFs) to a structural mannequin. By calculating the facility dissipated by damping at every frequency, engineers can acquire insights into how successfully a construction absorbs vibratory vitality.
This strategy offers vital info for noise, vibration, and harshness (NVH) analyses, serving to to determine areas of a construction which are only or least efficient at absorbing vibrations. Understanding energy absorption traits is prime for optimizing designs to mitigate noise and vibration, enhance structural sturdiness, and stop resonance points. This methodology has grow to be more and more vital with the rising emphasis on lightweighting and high-performance buildings in industries akin to aerospace and automotive.
