Probability-temporal analysis of reliability indicators kinetics at the stage of designing a rope system of a mobile transport and reloading ropeway

Lagerev, A.V.; Tarichko, V.I.; Lagerev, I.A.

doi:10.22281/2413-9920-2020-06-02-256-275

Cited by 3 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As a basis for the development of a mathematical model for the formation of an optimal schedule of planned repairs of a mobile cargo ropeway, ensuring optimization (minimization) of the cost of its operation, it is advisable to use the method of probabilistic forecasting of the reliability kinetics of lifting and transport equipment [17,20]. It is based on the use of the Chapman-Kolmogorov equation [19].…”

Section: Mathematical Modelsmentioning

confidence: 99%

“…This objectively complicates the necessary maintenance of equipment in unprepared field conditions. The quality of maintenance is reduced in comparison with carrying out repairs by specialized operational and repair services in stationary conditions [17]. Obviously, an effective strategy for carrying out repair and restoration works of mobile ropeways during the entire service life is an expedient way out of this situation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimal planning of the mobile cargo ropeway repair strategy

Lagerev

2023

Int J Syst Assur Eng Manag

Self Cite

View full text Add to dashboard Cite

The focus of this research is to increase the reliability of mobile cargo ropeways formed by autonomous selfpropelled transport units. The article deals with the development of a method for forming an effective technical and economic strategy for the restoration during planned repairs of those structural elements of transport units that can lead to critical failures of the ropeway. The method involves predicting the kinetics of the probability of failure-free operation of the ropeway during the entire life of its operation on the basis of predicting the failure-free operation of key elements of the transport units, the failure of which leads to an emergency disruption of the ropeway. In the process of integrating the system of Chapman-Kolmogorov differential equations, its periodic reformation is performed at the time of planned repairs, which allows us to take into account the need for a discrete change in the probability of failure-free operation of the restored structural elements. As a criterion for the optimality of the repairs strategy, the condition for obtaining the minimum total cost of repairs is used, while ensuring the average probability of failure-free operation. The formation of such an optimal strategy includes planning the schedules, number, time points, volume and cost of restoration work. The effectiveness of the repair strategy is determined by the total number of planned repairs and the minimum permissible probability of critical failure of structural elements. Conditions have been established under which further improvement of the level of ropeway reliability becomes an economically unprofitable task.

show abstract

Section: Mathematical Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimal planning of the mobile cargo ropeway repair strategy

Lagerev

2023

Int J Syst Assur Eng Manag

Self Cite

View full text Add to dashboard Cite

show abstract

“…It was found that regular condition monitoring of steel wire ropes based on non-destructive investigation and evaluation techniques can improve safety and optimal rope life [ 34 ]. Lagerev et al analyzed the wire rope of a cableway and observed the deformation of the wire rope through computer simulation of the overall time-varying reliability index [ 35 ]. Sukhorukov et al used magnetic flux leakage testing (MFL) in automatic wire rope monitoring systems, which can perform automatic monitoring and save time and effort [ 36 ].…”

Section: Introductionmentioning

confidence: 99%

Zero-Velocity Update-Based GNSS/IMU Tightly Coupled Algorithm with the Constraint of the Earth’s Rotation Angular Velocity for Cableway Bracket Deformation Monitoring

Zhang,

et al. 2023

Sensors

View full text Add to dashboard Cite

Cableways have been widely used in industrial areas, cities, and scenic spots due to their advantages, such as being a convenient mode of transportation, time-saving, labor-saving, and low cost, as well as offering environmental protection. To ensure the safe operation of a cableway, based on the characteristic that the velocity of the cableway bracket is approximately zero in a static deformation monitoring environment, a deformation monitoring method called zero velocity update (ZUPT)-based GNSS/IMU tightly coupled algorithm with the constraint of the Earth’s rotation angular velocity was proposed. The proposed method can effectively solve the problem of a single GNSS being unable to output attitude, which is directly related to the status of wire ropes and cable cars. Meanwhile, ZUPT is used to restrain the Kalman filter’s divergence when IMU is stationary. However, the improvements of ZUPT on attitude are not obvious, so the constraint of the Earth’s rotation angular velocity was applied. The performance of the proposed method was evaluated through monitoring the cableway bracket of the Yimeng Mountain Tourism area in Shandong. Compared with the ZUPT-based GNSS/IMU tightly coupled algorithm (ZUPT-TC), the proposed method can further constrain the error accumulation of IMU while stationary and, therefore, it can provide reliable position and attitude information on cableway brackets.

show abstract

Optimal Planning of the Mobile Cargo Ropeway Repair Strategy

Lagerev¹,

Lagerev²

2021

Preprint

Self Cite

View full text Add to dashboard Cite

The focus of this research is to increase the reliability of mobile cargo ropeways formed by autonomous self-propelled transport units. The article deals with the development of a method for forming an effective technical and economic strategy for the restoration during planned repairs of those structural elements of transport units that can lead to critical failures of the ropeway. The method involves predicting the kinetics of the probability of failure-free operation of the ropeway during the entire life of its operation on the basis of predicting the failure-free operation of key elements of the transport units, the failure of which leads to an emergency disruption of the ropeway. In the process of integrating the system of Chapman-Kolmogorov differential equations, its periodic reformation is performed at the time of planned repairs, which allows us to take into account the need for a discrete change in the probability of failure-free operation of the restored structural elements. As a criterion for the optimality of the repairs strategy, the condition for obtaining the minimum total cost of repairs is used, while ensuring the average probability of failure-free operation. The formation of such an optimal strategy includes planning the schedules, number, time points, volume and cost of restoration work. The effectiveness of the repair strategy is determined by the total number of planned repairs and the minimum permissible probability of critical failure of structural elements. Conditions have been established under which further improvement of the level of ropeway reliability becomes an economically unprofitable task.

show abstract

Probability-temporal analysis of reliability indicators kinetics at the stage of designing a rope system of a mobile transport and reloading ropeway

Cited by 3 publications

References 1 publication

Optimal planning of the mobile cargo ropeway repair strategy

Optimal planning of the mobile cargo ropeway repair strategy

Zero-Velocity Update-Based GNSS/IMU Tightly Coupled Algorithm with the Constraint of the Earth’s Rotation Angular Velocity for Cableway Bracket Deformation Monitoring

Optimal Planning of the Mobile Cargo Ropeway Repair Strategy

Contact Info

Product

Resources

About