Throughput Evaluation of Buffered Unreliable Production Lines with Machines Having Multiple Failure Modes

2013 ◽  
pp. 229-241
Author(s):  
Yassine Ouazene ◽  
Alice Yalaoui ◽  
Hicham Chehade ◽  
Farouk Yalaoui
Keyword(s):  
Failure Modes ◽  
Production Lines ◽  
Multiple Failure Modes

scholarly journals IMPROVING THE RELIABILITY OF BODY ASSEMBLY LINE EQUIPMENT

1996 ◽  
Vol 03 (01) ◽  
pp. 11-24 ◽  
Author(s):  
KAKURO AMASAKA ◽  
HIROHISA SAKAI
Keyword(s):  
Conventional Method ◽  
Assembly Line ◽  
Failure Modes ◽  
Lead Times ◽  
Reliability Engineering ◽  
Production Lines ◽  
Line Production ◽  
Equipment Reliability ◽  
New Models ◽  
Short Time

It is necessary to establish higher levels of equipment reliability in a short time, the market demands ever shorter lead times for the release of new models. Also, the demand for new-model cars is very strong immediately after their introduction. The conventional method for enhancing equipment reliability is by screening alone. However, this requires screening operations on production lines and so has been an obstacle to line production and prevented shortening of lead times. We are now able to dramatically enhance equipment reliability in a very short time by detecting failure modes and forecasting the number of occurrences using a scientific technique based on reliability engineering.

An Extended System Aggregation Method for Hybrid Production Lines with Multiple Failure Rate and Unreliable Limited Buffers

2012 ◽  
Vol 459 ◽  
pp. 432-436
Author(s):  
Jun Liu ◽  
Ye Nan Wang ◽  
Jian Hua Li ◽  
Rui Shen Chen
Keyword(s):  
Evaluation Method ◽  
Failure Modes ◽  
Extended System ◽  
Production Lines ◽  
Aggregation Method ◽  
Hybrid Production ◽  
Production Models ◽  
Limited Buffers ◽  
Performance Evaluation Method ◽  
Stochastic Events

In this study, a new system performance evaluation method is introduced to the two-machine line. After that, the extended system aggregation model is developed and corresponding aggregation formulations are deduced.Different from traditional production models, the production line features unreliable buffers and multiple stochastic failure modes of the machines. The method is applicable to analyzing the cases arising from two or more stochastic events or more complex production lines

scholarly journals Mechanism reliability and sensitivity analysis of landing gear under multiple failure modes

2021 ◽  
Vol 39 (1) ◽  
pp. 46-54
Author(s):  
Changcong Zhou ◽  
Mengyao Ji ◽  
Yishang Zhang ◽  
Fuchao Liu ◽  
Haodong Zhao
Keyword(s):  
Failure Probability ◽  
Failure Modes ◽  
Kriging Model ◽  
Landing Gear ◽  
Multiple Failure Modes ◽  
Analysis And Design ◽  
Extension System ◽  
Extension Mechanism ◽  
Assembly Error ◽  
Adaptive Kriging

For a certain type of aircraft landing gear retraction-extension mechanism, a multi-body dynamic simulation model is established, and the time-dependent curves of force and angle are obtained. Considering the random uncertainty of friction coefficient, assembly error, and the change of hinge wear under different retraction times, the reliability model is built including three failure modes of landing gear, i.e. blocking failure, positioning failure and accuracy failure. Based on the adaptive Kriging model, the reliability and sensitivity of retraction-extension system under the condition of single failure mode and multiple failure modes in series are analyzed, and the rule of reliability and sensitivity changing with the number of operations is given. The results show that the system failure probability of landing gear mechanism tends to decrease first and then increase when considering the given information of random factors, and the influences of random factors on the failure probability vary with the number of operations. This work provides a viable tool for the reliability analysis and design of landing gear mechanisms.

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