scholarly journals Some Relation between Matrices for Stability Criterion and Performance Index in Optimum Control for Linear Constant Coefficient Systems

1968 ◽  
Vol 4 (4) ◽  
pp. 333-341
Author(s):  
Minoru HAYASE
2013 ◽  
Vol 572 ◽  
pp. 636-639
Author(s):  
Xi Chen ◽  
Gang Wang

This paper deals with the walking stability analysis of a multi-legged crablike robot over slope using normalized energy stability margin (NESM) method in order to develop a common stabilization description method and achieve robust locomotion for the robot over rough terrains. The robot is simplified with its static stability being described by NESM. The mathematical model of static stability margin is built so as to carry out the simulation of walking stability over slope for the crablike robot that walks in double tetrapod gait. As a consequence, the relationship between stability margin and the height of the robots centroid, as well as its inclination relative to the ground is calculated by the stability criterion. The success and performance of the stability criterion proposed is verified through MATLAB simulation and real-world experiments using multi-legged crablike robot.


2020 ◽  
Vol 57 (6) ◽  
pp. 915-922
Author(s):  
Poonam Kataria ◽  
Baldev Singh Dhillon

2014 ◽  
Vol 602-605 ◽  
pp. 1135-1138
Author(s):  
Cai Hong Yao ◽  
Xing Jia Jiang

For the brazing furnace work system with time-varying, hysteresis and nonlinearity characteristic, the traditional PID control cannot meet the requirements of high-performance. Fuzzy self-tuning PID control scheme, can effectively overcome the interference effect, has good adaptability. But the based on modern control theory state space analytic method uses state feedback, not only promulgating the system internal structural property, to realize the optimum control to system’s compound performance index. By combining state feedback and PID control of the respective advantages, determined the brazing furnace temperature system’s optimum control scheme. Either the simulation analysis or actual system operation fully explaining fuzzy intelligent designs of the tuning PID and the optimal control scheme based on state space method have improved significantly the system's steady-state and dynamic performance index.


Author(s):  
Surya Adinata ◽  
Akbar Alfa

The cost control is a very important aspect in project management. Poor cost control often results in project construction costs that differ from planned costs. The applying of the Earned Value Concept method for analytical calculations requires the following data: Implementation time along with the S curve; Volume data of each work item; Percentage of work weighted; Standard daily reports, weekly reports, and monthly project reports; Actual project financial data and SPI. The stage of data analysis for each job are: determining of BCWS (Budgete Cost Of Work Schedule); BCWP (Budgeted Cost of Work Performed; ACWP (Actual Cost of Work performed) Analysis of variance and performance index from the Earned Value Concept method. It consists of: Cost Variance (CV) and Schedule Variance (SV), Cost Performance Index (CPI) and Schedule Performance Index (SPI). The results of the analysis of the applied of the Earned Value Concept method of PT. Riau Maju Cemerlang obtained a gross cost gain of around Rp. 173,591,516.52 or 5.00% of the total construction price without VAT value. The initial planning time for project work began on 26 July and the initial planning time ended on 17 December (145 HK) turned out to be 27 December (155 HK). The applied of the Result Value Concept method to the project can find out the remaining value of the project costs for the remaining work and how much the total cost has been used for the project.


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