---
title: "System equilibrium"
source: "https://systems-analysis.info/eng/System_equilibrium"
wiki: "systems-analysis.info/eng"
article: "System_equilibrium"
language: "en"
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  - "Category:English"
  - "Category:Science"
  - "Category:Systems analysis"
  - "Category:Systems approach"
  - "Category:Systems theory"
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wiki_modified_at: 2026-09-06T22:22:38Z
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---

# System equilibrium

# System Equilibrium

**System equilibrium** is a state in which the key parameters and structure of a system remain stable in the absence of, or upon compensation for, external and internal influences. In the systems approach, equilibrium is considered one of the forms of a stable state in complex systems.<sup>[\[1\]](https://systems-analysis.info/eng/System_equilibrium#cite_note-:0-1)[\[2\]](https://systems-analysis.info/eng/System_equilibrium#cite_note-2)</sup>

## General Characteristics

System equilibrium implies a coherence of internal processes and element interactions, which results in stable functioning without a tendency for spontaneous changes of state.

Equilibrium is associated with:

- a balance of forces and influences within the system;
- the preservation of structure and integrity;
- the stability of operating parameters;
- the ability to return to its state after minor disturbances.

## Types of Equilibrium

In systems analysis, several types of equilibrium are distinguished:

- **Static equilibrium** — a complete absence of changes in state as long as external conditions remain constant.<sup>[\[1\]](https://systems-analysis.info/eng/System_equilibrium#cite_note-:0-1)</sup>
- **Dynamic equilibrium** — the maintenance of stability amidst constant parameter changes, achieved through internal compensation of processes.<sup>[\[3\]](https://systems-analysis.info/eng/System_equilibrium#cite_note-3)</sup>
- **Stable equilibrium** — a state to which the system returns after minor disturbances.<sup>[\[4\]](https://systems-analysis.info/eng/System_equilibrium#cite_note-4)[\[5\]](https://systems-analysis.info/eng/System_equilibrium#cite_note-5)</sup>
- **Unstable equilibrium** — a state from which the slightest deviation causes the system to transition to a different state.

## Equilibrium and Homeostasis

Equilibrium is related to the concept of [Homeostasis](https://systems-analysis.info/eng/Homeostasis "Homeostasis") but has a broader interpretation. Homeostasis describes the mechanisms for maintaining parameters within acceptable limits, whereas equilibrium encompasses the overall state of balance between internal and external factors.<sup>[\[6\]](https://systems-analysis.info/eng/System_equilibrium#cite_note-6)[\[7\]](https://systems-analysis.info/eng/System_equilibrium#cite_note-7)[\[8\]](https://systems-analysis.info/eng/System_equilibrium#cite_note-8)</sup>

## Equilibrium in System Dynamics

The [Dynamic properties](https://systems-analysis.info/eng/Dynamic_properties "Dynamic properties") of systems imply the possibility of transitions between states of equilibrium and non-equilibrium:

- A system can exist in a quasi-stationary equilibrium, slowly changing its parameters as it adapts to the environment.
- A disturbance of equilibrium can lead to phase transitions, structural reorganization, or the development of new forms of organization.

Equilibrium is not an absolute state but rather a process of maintaining relative stability under changing environmental conditions.

## Examples of Equilibrium

- In physics: the mechanical equilibrium of an object under the action of balanced forces.
- In biology: the maintenance of an organism's internal environment (homeostasis).
- In economics: market equilibrium between supply and demand.
- In a social system: a stable state of social order.

## Significance of Equilibrium Analysis

The analysis of system equilibrium is necessary for:<sup>[\[9\]](https://systems-analysis.info/eng/System_equilibrium#cite_note-9)</sup>

- assessing operational stability;
- forecasting potential changes and transitions;
- developing system management strategies;
- understanding the mechanisms of adaptation and development.

The study of equilibrium allows for the identification of the limits of a system's stability and the conditions under which it preserves or loses its integrity.

## External links

- <a href="https://en.wikipedia.org/wiki/Dynamical_system" class="external text" rel="nofollow">Dynamical system — Wikipedia</a>

## See also

- [System stability](https://systems-analysis.info/eng/System_stability "System stability")
- [Dynamic properties](https://systems-analysis.info/eng/Dynamic_properties "Dynamic properties")

## Literature

- Bertalanffy, L. von. General System Theory — A Critical Review // Investigations in General Systems Theory: A Collection of Translations / Gen. ed. and intro. by V. N. Sadovsky and E. G. Yudin. — Moscow: Progress, 1969.
- Bertalanffy, L. von. General System Theory — A Survey of Problems and Results // Systems Research. Yearbook 1969. — Moscow: Nauka, 1969.
- Wiener, N. Cybernetics: Or Control and Communication in the Animal and the Machine. — Moscow: Nauka, 1983. (or other editions).
- Ashby, W. R. An Introduction to Cybernetics. — Moscow: Izd-vo inostrannoy literatury, 1959. (or other editions).
- Blauberg, I. V., Sadovsky, V. N., Yudin, E. G. The Systems Approach: Prerequisites, Problems, Difficulties. — Moscow: Znanie, 1969.
- Blauberg, I. V., Yudin, E. **G.** The Formation and Essence of the Systems Approach. — Moscow: Nauka, 1973.
- Volkova, V. N., Denisov, A. A. Systems Theory and Systems Analysis: A Textbook for Universities. — Moscow: Yurayt, 2010
- Sadovsky, V. N. Foundations of General Systems Theory. A Logical-Methodological Analysis. — Moscow: Nauka, 1974.
- Peregudov, F. I., Tarasenko, F. P. Introduction to Systems Analysis: A Textbook for Universities. — Moscow: Vysshaya Shkola, 1989.
- Nicolis, G., Prigogine, I. Self-Organization in Nonequilibrium Systems: From Dissipative Structures to Order through Fluctuations. — Moscow: Mir, 1979.
- Haken, H. Synergetics. — Moscow: Mir, 1980.

## References

1.  <span id="cite_note-:0-1">↑ <sup>[1.0](https://systems-analysis.info/eng/System_equilibrium#cite_ref-:0_1-0)</sup> <sup>[1.1](https://systems-analysis.info/eng/System_equilibrium#cite_ref-:0_1-1)</sup> "If a system is stable, it will tend toward a state of equilibrium, i.e., to a certain constant distribution of concentrations, reached after a sufficiently long period of time." *A. Rapoport, article "Various Approaches to General Systems Theory" // Systems Research. Yearbook 1969. p. 62.*</span>
2.  <span id="cite_note-2">[↑](https://systems-analysis.info/eng/System_equilibrium#cite_ref-2) "Equilibrium. The concept of equilibrium is defined as the ability of a system, in the absence of external disturbing influences (or under constant influences), to maintain its state indefinitely. This state is called the state of equilibrium." *V.N. Volkova, A.A. Denisov. Systems Theory. — Moscow: Vysshaya Shkola, 2006. p. 31.*</span>
3.  <span id="cite_note-3">[↑](https://systems-analysis.info/eng/System_equilibrium#cite_ref-3) "In developing systems, we speak of dynamic equilibrium, and stability can be conceptually represented as a state of equilibrium as if 'on a step'." *V.N. Volkova, A.A. Denisov. Systems Theory. — Moscow: Vysshaya Shkola, 2006. p. 33.*</span>
4.  <span id="cite_note-4">[↑](https://systems-analysis.info/eng/System_equilibrium#cite_ref-4) "A state of equilibrium to which a system is capable of returning is called a stable state of equilibrium." *V.N. Volkova, A.A. Denisov. Systems Theory. — Moscow: Vysshaya Shkola, 2006. p. 31.*</span>
5.  <span id="cite_note-5">[↑](https://systems-analysis.info/eng/System_equilibrium#cite_ref-5) "Stability is understood as the ability of a system to return to a state of equilibrium after being displaced from it by external (or, in systems with active elements, internal) disturbing influences." *V.N. Volkova, A.A. Denisov. Systems Theory. — Moscow: Vysshaya Shkola, 2006. p. 31.*</span>
6.  <span id="cite_note-6">[↑](https://systems-analysis.info/eng/System_equilibrium#cite_ref-6) "Equilibrium is a time-independent state of a closed system in which all macroscopic quantities remain unchanged and all macroscopic processes cease." *V. N. Sadovsky, Foundations of General Systems Theory. p. 165.*</span>
7.  <span id="cite_note-7">[↑](https://systems-analysis.info/eng/System_equilibrium#cite_ref-7) "Mobile equilibrium is a time-independent state of an open system in which all macroscopic quantities remain unchanged, although continuous macroscopic processes of substance input and output continue." *V. N. Sadovsky, Foundations of General Systems Theory. p. 165.*</span>
8.  <span id="cite_note-8">[↑](https://systems-analysis.info/eng/System_equilibrium#cite_ref-8) "...to maintain the mobile equilibrium of open systems, a precise coordination of the rates of the processes occurring within them is necessary." *V. N. Sadovsky, Foundations of General Systems Theory. p. 166.*</span>
9.  <span id="cite_note-9">[↑](https://systems-analysis.info/eng/System_equilibrium#cite_ref-9) "Equilibrium and non-equilibrium approaches must coexist in modeling the development of complex systems." *E. N. Kuznetsov, article "Equilibrium and Non-Equilibrium Approaches..." // Systems Research. Yearbook. 1988. p. 136.*</span>