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.

A Technique of Reliable Treatment for RF Interstitial Heating with Romotely Controlled After-Loading System (RALS) Using Ethanol.

1997 ◽  
Vol 13 (4) ◽  
pp. 233-238 ◽  
Author(s):  
HIROKAZU KATO ◽  
NOBUE UCHIDA ◽  
TOSHIFUMI KASAI ◽  
KAZURO SUGIMURA ◽  
TADASHI KOYAMA ◽  
...  
Keyword(s):  
Loading System

scholarly journals Kinesin-Cam Fusion Protein as a Molecular Shuttle with Calcium Dependent Cargo-Loading System

2011 ◽  
Vol 100 (3) ◽  
pp. 487a
Author(s):  
Takashi Kouda ◽  
Hideki Shishido ◽  
Shinsaku Maruta
Keyword(s):  
Fusion Protein ◽  
Calcium Dependent ◽  
Loading System ◽  
Molecular Shuttle

scholarly journals A Dynamic Mobility Traffic Model Based on Two Modes of Transport in Smart Cities

Smart Cities ◽  
2021 ◽  
Vol 4 (1) ◽  
pp. 253-270
Author(s):  
Mohammed Bin Hariz ◽  
Dhaou Said ◽  
Hussein T. Mouftah
Keyword(s):  
Data Exchange ◽  
Smart Cities ◽  
Time Data ◽  
School Bus ◽  
The Public ◽  
Ride Sharing ◽  
Dynamic Mobility ◽  
Proposed Model ◽  
Loading System ◽  
Suitable Combination

This paper focuses on transportation models in smart cities. We propose a new dynamic mobility traffic (DMT) scheme which combines public buses and car ride-sharing. The main objective is to improve transportation by maximizing the riders’ satisfaction based on real-time data exchange between the regional manager, the public buses, the car ride-sharing and the riders. OpenStreetMap and OMNET++ were used to implement a realistic scenario for the proposed model in a city like Ottawa. The DMT scheme was compared to a multi-loading system used for a school bus. Simulations showed that rider satisfaction was enhanced when a suitable combination of transportation modes was used. Additionally, compared to the other scheme, this DMT scheme can reduce the stress level of car ride-sharing and public buses during the day to the minimal level.

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