Abstract
The low reliability of the serial connected machines in the automated production lines could be increased by stochastic simulation of the up-and down times there give the output values as: mean up-and availability. The mathematic base of the simulation model is a relative increasing of the reliability of the line (ΔRL/RL = ∑ΔRi/Ri) and independent generators of pseudorandom Numbers used for up-and down time generator. The model is independent of the type of distribution of failure rate - λ(t) and repair rate - µ(t). The application of the model is according to the algorithm: (i) the requested value of the line production RL* is chosen and the relative change (increasing) of the reliability is determined by RL*−RL/RL where RL is the actual (empiric) value of the line reliability, (ii) maximal possible buffer capacity (in - process stock) after each machine is determined in dependance on the cycle time, (iii) requested relative increasing of the reliability of each buffer is chosen for the determind capacity, (iv) the buffer giving the highest relative increasing of the reliability is chosen until RL*−RL/RL is achieved. The developed model is applicable for automated production line disregarding the type as well as assembly line, package line etc.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.