In numerous fields of study, the component of instability within a system is generally characterized by some of the outputs or internal states growing without bounds. Not all systems that are not stable are unstable; systems can also be marginally stable or exhibit limit cycle behavior. In structural engineering, a structure can become unstable when excessive load is applied. Beyond a certain threshold, structural deflections magnify stresses, which in turn increases deflections. This can take the form of buckling or crippling. The general field of study is called structural stability.

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  • In numerous fields of study, the component of instability within a system is generally characterized by some of the outputs or internal states growing without bounds. Not all systems that are not stable are unstable; systems can also be marginally stable or exhibit limit cycle behavior. In structural engineering, a structure can become unstable when excessive load is applied. Beyond a certain threshold, structural deflections magnify stresses, which in turn increases deflections. This can take the form of buckling or crippling. The general field of study is called structural stability. Atmospheric instability is a major component of all weather systems on Earth. (en)
  • Нестабильность — состояние системы, характеризующееся неоднородностью и разновремённостью каждого из протекающих процессов и всех изменений в целом. Это форма наблюдаемых взаимосвязей и причинной обусловленности всех явлений, противоположная стабильному и метастабильному состоянию. (ru)
  • 在許多領域中,不穩定是指一個可由其輸出或內在狀態描述的系統,其狀態可能會不受限制的成長(有時會稱為發散)。另一個對應的詞是穩定,穩定有許多種定義,其中一種定義是指對系統施加一個小型的外擾,使系統離開一平衡狀態,外擾去除後,系統會回到原來的平衡狀態。 以右圖為例: * 一個山丘上的球,若推往任何一個方向,球會移動離開山丘,在推力消除後,球仍會繼續往下滾,離山丘的距離越來越遠,這是不穩定的系統。 * 一個山谷中的球,若推往任何一個方向,球會移動離開山谷,但推力消除後,球會回到山谷的位置,這是穩定的系統。 系統除了穩定及不穩定,也可能處於其他的情形,例如系統不會發散也不會回到原平衡狀態的邊界穩定(例如一個平地上的球),或是其狀態會形成某種特定循環的极限环。 在結構工程中,一個結構若承受了過重的負荷,結構就會不穩定。負荷若超過一定的上限,結構的變形會使應力變大,結構會再進一步的變形,會產生挫曲或局部破壞,這類的研究稱為結構穩定性。 大氣不穩定性是地球上所有氣象系統的重要特性之一。 (zh)
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  • 548173 (xsd:integer)
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  • 742363213 (xsd:integer)
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  • September 2015
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  • what is the difference between these two types of multiplicity?
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  • Нестабильность — состояние системы, характеризующееся неоднородностью и разновремённостью каждого из протекающих процессов и всех изменений в целом. Это форма наблюдаемых взаимосвязей и причинной обусловленности всех явлений, противоположная стабильному и метастабильному состоянию. (ru)
  • 在許多領域中,不穩定是指一個可由其輸出或內在狀態描述的系統,其狀態可能會不受限制的成長(有時會稱為發散)。另一個對應的詞是穩定,穩定有許多種定義,其中一種定義是指對系統施加一個小型的外擾,使系統離開一平衡狀態,外擾去除後,系統會回到原來的平衡狀態。 以右圖為例: * 一個山丘上的球,若推往任何一個方向,球會移動離開山丘,在推力消除後,球仍會繼續往下滾,離山丘的距離越來越遠,這是不穩定的系統。 * 一個山谷中的球,若推往任何一個方向,球會移動離開山谷,但推力消除後,球會回到山谷的位置,這是穩定的系統。 系統除了穩定及不穩定,也可能處於其他的情形,例如系統不會發散也不會回到原平衡狀態的邊界穩定(例如一個平地上的球),或是其狀態會形成某種特定循環的极限环。 在結構工程中,一個結構若承受了過重的負荷,結構就會不穩定。負荷若超過一定的上限,結構的變形會使應力變大,結構會再進一步的變形,會產生挫曲或局部破壞,這類的研究稱為結構穩定性。 大氣不穩定性是地球上所有氣象系統的重要特性之一。 (zh)
  • In numerous fields of study, the component of instability within a system is generally characterized by some of the outputs or internal states growing without bounds. Not all systems that are not stable are unstable; systems can also be marginally stable or exhibit limit cycle behavior. In structural engineering, a structure can become unstable when excessive load is applied. Beyond a certain threshold, structural deflections magnify stresses, which in turn increases deflections. This can take the form of buckling or crippling. The general field of study is called structural stability. (en)
rdfs:label
  • Instability (en)
  • Stabilität (de)
  • Inestabilidad (es)
  • Instabilité (fr)
  • Instabilità (it)
  • Нестабильность (ru)
  • Instabilidade (pt)
  • 不稳定性 (zh)
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