  This paper considers a circular k-out-of-n: G balance system equipped with
homogeneous and stationary units. Building on previous research by Endharta et
al. (Reliability Engineering & System Safety, 2018), we propose a new balance
definition in circular k-out-of-n: G balance systems based on the concept of
center of gravity. According to this condition, a circular k-out-of-n: G
balance system is considered balanced if its center of gravity is located at
the origin. This new balance condition is not only simple but also advantageous
as it covers the previous two balance conditions of symmetry and
proportionality. To evaluate the system's reliability, we consider the minimum
tie-sets, and extensive numerical studies verify the enhancement of system
reliability resulting from the proposed balance definition.
