Dynamic Analysis of a New Rotary Steerable Drilling Tool

2012 ◽  
Vol 197 ◽  
pp. 356-361
Author(s):  
Li Na Wang ◽  
Wen Tie Niu ◽  
Sheng Li Fu ◽  
Hong Tao Li
Keyword(s):  
Control System ◽  
Dynamic Model ◽  
Simulation Analysis ◽  
Rotation Axis ◽  
Drilling Process ◽  
Universal Joint ◽  
Drilling Tool ◽  
Detail Design ◽  
Mechanics Model ◽  
Model And Simulation

This paper presents a novel Rotary Steerable System which used a universal joint to avoid the alternating press in the drilling process. The mechanics model is established on the basis of simplifying structure and supporting of rotation axis in directive RSS. Dynamic model of the offset mandrel is derived by means of Hamilton principle, which could be used to control system design. Location of offset force acting on the offset mandrel is optimized and vibration equation of universal joint is deduced by means of transfer matrix method, then the results of natural frequency are compared with the calculated results of the finite element to verify the kinetic model. Both dynamic model and simulation analysis are expected to provide useful good guidance for the design of control system, detail design, structure optimization and the dynamic vibration of the RSS.

Simulation Analysis of Automatic Grouting Network Control System Based on Matlab

2013 ◽  
Vol 457-458 ◽  
pp. 788-792
Author(s):  
Guo Qing Qiu ◽  
Ming Li ◽  
Yi Long ◽  
Yong Can Yu
Keyword(s):  
Control System ◽  
Packet Loss ◽  
Simulation Analysis ◽  
Network Control ◽  
Data Packet ◽  
Drilling Process ◽  
Control Performance ◽  
Network Control System ◽  
Control Effect ◽  
Network Delay

Automatic grouting is a very important part in the well drilling process. The stability of grouting system is one of the factors affecting the drilling accident. This paper presents a automatic grouting method based on network control system. In order to find out the influence on the control performance after using network in the system, paper sets up the system model with the simulation toolbox TrueTime-2.0 of MATLAB and separately studies the influence on the control effect by network delay and data packet loss according to the simulation result. The results prove that both the network delay and data packet loss all make great differences on the control performance of system, so we need to take appropriate strategies to reduce the influence in the actual designs.

A Dynamic Model and Simulation Analysis of Powered Gait Orthosis

2016 ◽  
Vol 13 (5) ◽  
pp. 2739-2746
Author(s):  
Meng Ning ◽  
Ze-Feng Ma ◽  
He-Sheng Yin ◽  
Ding-Kun Long ◽  
Xue-Lei Sun ◽  
...  
Keyword(s):  
Dynamic Model ◽  
Simulation Analysis ◽  
Model And Simulation ◽  
Powered Gait Orthosis

Dynamic Simulation Analysis of Shipborne Missile Launching under High-Wave-Level Environment

2012 ◽  
Vol 569 ◽  
pp. 380-385
Author(s):  
Zhou Zhong ◽  
Yi Jiang ◽  
Yong Yuan Li ◽  
Chong Zhang
Keyword(s):  
Dynamic Response ◽  
Dynamic Model ◽  
Dynamic Simulation ◽  
Simulation Analysis ◽  
Simulation Method ◽  
Flexible Coupling ◽  
High Wave ◽  
Model And Simulation ◽  
Coupling Dynamic ◽  
Coupling Dynamic Model

In order to study the dynamic response of shipborne missile vertical launching under high-wave-level environment, the rigid-flexible coupling dynamic model of launching system was built by ways of virtual prototype technology. According to simulations for different launching conditions, missile attitude parameters were acquired, and interference of various parts was analyzed. The result shows that the dynamic model and simulation method proposed in this paper are effective and practicable.

Dynamic model and simulation analysis of the genetic impact of population harvesting

2010 ◽  
Vol 216 (2) ◽  
pp. 565-575 ◽  
Author(s):  
Zoltán Sebestyén ◽  
Zoltán Varga ◽  
József Garay ◽  
Roberta Cimmaruta
Keyword(s):  
Dynamic Model ◽  
Simulation Analysis ◽  
Model And Simulation ◽  
Genetic Impact

scholarly journals Kinematics and dynamics analysis of new rotary-percussive PDM drilling tool

2021 ◽  
pp. 146134842198915
Author(s):  
Jialin Tian ◽  
Xuehua Hu ◽  
Liming Dai ◽  
Lin Yang ◽  
Yi Yang ◽  
...  
Keyword(s):  
Drill String ◽  
Structure Design ◽  
Drilling Process ◽  
Analysis Model ◽  
Drilling Tool ◽  
Stick Slip ◽  
Rate Of Penetration ◽  
Bottom Hole ◽  
Bottom Hole Assembly ◽  
The Impact

This paper presents a new drilling tool with multidirectional and controllable vibrations for enhancing the drilling rate of penetration and reducing the wellbore friction in complex well structure. Based on the structure design, the working mechanism is analyzed in downhole conditions. Then, combined with the impact theory and the drilling process, the theoretical models including the various impact forces are established. Also, to study the downhole performance, the bottom hole assembly dynamics characteristics in new condition are discussed. Moreover, to study the influence of key parameters on the impact force, the parabolic effect of the tool and the rebound of the drill string were considered, and the kinematics and mechanical properties of the new tool under working conditions were calculated. For the importance of the roller as a vibration generator, the displacement trajectory of the roller under different rotating speed and weight on bit was compared and analyzed. The reliable and accuracy of the theoretical model were verified by comparing the calculation results and experimental test results. The results show that the new design can produce a continuous and stable periodic impact. By adjusting the design parameter matching to the working condition, the bottom hole assembly with the new tool can improve the rate of penetration and reduce the wellbore friction or drilling stick-slip with benign vibration. The analysis model can also be used for a similar method or design just by changing the relative parameters. The research and results can provide references for enhancing drilling efficiency and safe production.

Intelligent Information of TS Fuzzy PID Control System of BLDCM

2013 ◽  
Vol 846-847 ◽  
pp. 313-316 ◽  
Author(s):  
Xiao Yun Zhang
Keyword(s):  
Control System ◽  
Dynamic Model ◽  
Pid Control ◽  
Control Method ◽  
Design Method ◽  
Fuzzy Pid ◽  
Fuzzy Pid Control ◽  
Control Precision ◽  
Simulation Results ◽  
Intelligent Information

This paper presented a new method based on the Fuzzy self - adaptive PID for BLDCM. This method overcomes some defects of the traditional PID control. Such as lower control precision and worse anti - jamming performance. It dynamic model of BLDCM was built, and then design method for TS fuzzy PID model is given, At last, it compared simulation results of PID control method with TS Fuzzy PID control method. The results show that the TS Fuzzy PID control method has more excellent dynamic antistatic performances, as well as anti-jamming performance. The experiment shows that TS fuzzy PID control has the stronger adaptability robustness and transplant.

Sign in / Sign up

Export Citation Format

Share Document