eigen frequency

[/ˈaɪɡən ˈfriːkwənsi/]
nounpl: eigen frequencies
frequência própria
1. The natural frequency at which a system oscillates when disturbed from its equilibrium position, determined by the system's physical properties such as mass and stiffness
The bridge's eigen frequency was calculated to ensure it wouldn't resonate with wind-induced vibrations.
A frequência própria da ponte foi calculada para garantir que não ressurgisse com vibrações induzidas pelo vento.
2. In engineering and physics, one of the characteristic frequencies of a vibrating system corresponding to an eigenvalue of the system's differential equation
Each mode of vibration has its own eigen frequency that depends on the structure's geometry and material properties.
Cada modo de vibração tem sua própria frequência própria que depende da geometria e das propriedades materiais da estrutura.
This is a technical term primarily used in engineering, physics, and structural mechanics disciplines. It is equally recognized in both Brazilian Portuguese and European Portuguese technical communities. The term is essential in fields such as civil engineering, mechanical engineering, and acoustics, where understanding natural vibration frequencies is critical for safety and design optimization.
Synonyms / Sinônimos
natural frequencyfundamental frequencyresonant frequencycharacteristic frequency
Antonyms / Antônimos
forced frequencyexternal frequency

Regional Variations

General Brazilian Portuguese
frequência própria
Standard technical term used in engineering and physics contexts throughout Brazil
Portugal
frequência própria
Same term used in Portuguese technical literature; sometimes 'frequência natural' is also acceptable
Technical Communities (Brazil/Portugal)
frequência natural
Alternative term sometimes used interchangeably with frequência própria in structural engineering

Related Words

eigenvaluevibration moderesonancedampingoscillationmodal analysis

Related Idioms & Phrases

in tune with the eigen frequency
excited at its eigen frequency
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