Design, analysis and experiments of novel short-stroke linear loading system based on axial-magnetized voice-coil motor for linear oscillating actuator

2017 ◽  
Author(s):  
Tianyi Wang ◽  
Yuan Cao ◽  
Liang Yan ◽  
Zongxia Jiao
Keyword(s):  
Voice Coil Motor ◽  
Design Analysis ◽  
Loading System ◽  
Linear Loading

Evaluation of material failure under a linear loading system

1981 ◽  
Vol 13 (7) ◽  
pp. 821-827
Author(s):  
P. V. Tikhomirov ◽  
S. P. Yushanov
Keyword(s):  
Material Failure ◽  
Loading System ◽  
Linear Loading

scholarly journals Research on Control Algorithm of Electric Linear Loading System

2018 ◽  
Vol 220 ◽  
pp. 08007
Author(s):  
Jianjie Lei ◽  
Yuanxun Fan ◽  
Weidong Pan ◽  
Dejia Tang ◽  
Jian Tao ◽  
...  
Keyword(s):  
Control Algorithm ◽  
Fuzzy Controller ◽  
Dynamic Performance ◽  
Reference Value ◽  
Response Speed ◽  
Ball Screw ◽  
Current Loop ◽  
System Combination ◽  
Loading System ◽  
Linear Loading

This paper mainly focused on the problems of low loading accuracy in electric linear loading system, Firstly, the mathematical model is done on loading motor, loading motor driver and ball screw in the system. Then, the current loop proportional control is introduced, which improves the response speed of the load motor; In order to improve the loading accuracy and restrain excess force, a parallel algorithm based on fuzzy PID and repetitive control is designed in the force loop. The fuzzy controller improves the dynamic performance and anti-interference ability of the system. The repetitive controller periodically adjusts the deviation, which reduces the steady-state error of the system. Combination of the two controller results in good dynamic and static characteristics. The simulation results show that the proposed control algorithm is feasible, which has a certain engineering reference value.

An improved collapse axis on the R6 FAD for combined tension and bending loading

1993 ◽  
Vol 28 (1) ◽  
pp. 23-29
Author(s):  
N ø Kristiansen ◽  
C E Turner
Keyword(s):  
Plastic Hinge ◽  
Constraint Factor ◽  
True Path ◽  
Loading System ◽  
Edge Notch ◽  
Path Lengths ◽  
The Moment ◽  
Moment Load ◽  
Bending Loading ◽  
Linear Loading

Experimental and computational studies were made of a number of single edge notch (SEN) specimens loaded through eccentric pins with notch depth ratios 0.21 and 0.52. It was found that as the applied load was increased the formation of a plastic hinge mechanism caused the ligament to shift sideways and in turn alter the ratio of bending to tension loading. The two different assumptions, constant and variable bending to tension ratio, gave very different paths in the moment-load ( M-Q) space, and failure lines when plotted on the R6 Fracture Analysis Diagram (FAD). An improved expression for normalized load, Sr, for SEN geometries under a linear loading system was obtained by including a plastic constraint factor in the uncreacked lower bound solution. For the pin-loaded SEN specimens under a non-linear loading system, it was shown that Sr based on ‘true path lengths’ in the yield diagram gave a failure curve which was in good agreement with the R6 Rev3 solution.

Design & Analysis of Frame of 63 Ton Power Press Machine by Using Finite Element Method

2011 ◽  
Vol 3 (7) ◽  
pp. 285-288 ◽  
Author(s):  
H.N.Chauhan H.N.Chauhan ◽  
◽  
M.P.Bambhania M.P.Bambhania
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Design Analysis ◽  
Element Method
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