Research On Balance Optimization Of Power Equipment Production Line Based On Witness

The core of the fourth industrial revolution was intelligent manufacturing,which brought about a big situation of intelligent production.under the rapid promotion of "industry 4.0",the global manufacturing industry is facing great challenges.Under the increasingly competitive situation,how to get rid of the old production mode and glow new vitality?How to' use technology development to widen different product routes;How to take advantage of the east winds of intelligent production to form a new core competitiveness,these problems are all in front of China's manufacturing industry.In order to cope with these changes,many companies are reviewing the situation,looking for their own shortcomings,trying to find problems from within the enterprise and fundamentally solve the difficulties.Company A is a typical representative of them.The company is well-known in the manufacturing industry and has a good momentum of development,but under the impact of intelligent manufacturing,its performance has continued to decline and its operating condition has plummeted.In order to reverse this situation,it was decided to investigate the production site of the company's main product B-type circuit breaker first.The results showed that there was a serious imbalance in the production line in the workshop,which greatly restricted its production efficiency and would lead to a series of problems such as unreasonable personnel allocation,serious material waste and long waiting time,resulting in lower output.low staff enthusiasm and reduced economic benefits.According to these conditions,IE methods commonly used in production and manufacturing,such as program analysis and stopwatch timing method,can be used to optimize this and solve the problm of unbalanced production line to the greatest extent within a certain range.Because the production line contains many basic operation elements,there is a certain logical relationship between them,and in a production process,there will be a tight front and a tight back process,so a relevant linear programming model can be established according to the constraint relationship between them to describe the basic production situation of B-type circuit breaker.In the established linear programming model,there are many equations used to describe the constraint relation.Simply using the general method to solve the problem will result in heavy workload.At this time,Lingo software can be used to simulate the solution,and different assignment can be made to the number of workstations,thus obtaining different optimization schemes.After improving the line balance of B-type circuit breaker by IE method and linear programming model,some theoretical optimization schemes are obtained.The actual operation effect can be simulated by Witness simulation system.Through the simulation of the existing production plan,IE optimization plan and linear programming plan of B-type circuit breaker under different work stations,the operation situation of each work station can be clearly seen from the Witness interface,and the general working situation of various simulation elements can be obtained from the extracted data report form.Finally,Witness can well simulate the production situation of B-type circuit breaker and provide reference opinions for enterprise decision makers.Combining different research methods to compare and analyze the same research object can avoid the one-sidedness caused by the application of a single method,can combine traditional methods with modern knowledge to explore new application areas,and can bring new development vitality to manufacturing industry.China's manufacturing industry should seize this opportunity and change " Made in China" into "Wisdom Made in China" under the environment of global manufacturing industry change.