scholarly journals Thermodynamic simulation modeling analysis and experimental research of vertical ultrasonic vibration assisted EDM

2022 ◽  
Author(s):  
Yinghuai Dong ◽  
Jiajun Liu ◽  
Guangyan Li ◽  
Yan Wang
Keyword(s):  
Ultrasonic Vibration ◽  
Experimental Research ◽  
Simulation Modeling ◽  
Thermodynamic Simulation ◽  
Modeling Analysis

Simulation Modeling of Healthcare Delivery

2011 ◽  
pp. 69-89
Author(s):  
Ian W. Gibson
Keyword(s):  
Simulation Modeling ◽  
Healthcare Delivery ◽  
Healthcare Services ◽  
Healthcare Delivery System ◽  
Scarce Resources ◽  
Power Simulation ◽  
Modeling Analysis ◽  
Management Techniques ◽  
The Cost ◽  
Delivery Models

Healthcare has delivered incredible improvements in diagnosis and treatment of diseases but faces challenges to improve the delivery of services. Healthcare is a complex system using expensive and scarce resources. Benchmarking, experience, and lean management techniques currently provide the basis for developing service delivery models and facility planning. Simulation modeling can supplement these methods to enable a better understanding of the complex systems involved. This provides the basis for developing and evaluating options to provide improved healthcare delivery. Simulation modeling enables a better understanding of the processes and the resources used in delivering healthcare services and improving healthcare delivery systems. Options to improve the cost effectiveness can be evaluated without experimenting with patients. This chapter reviews the current challenges and methods including the use of simulation modeling. Analysis of emergency patient flows through a major hospital shows the capability of simulation modeling to enable improvement of the healthcare delivery system. This chapter enables healthcare managers to understand the power simulation modeling brings to the improvement of healthcare delivery.

Experimental Research on Ultrasonic Vibration Deep Hole Honing of Titanium Alloy

2011 ◽  
Vol 314-316 ◽  
pp. 1107-1111
Author(s):  
Hong Bing Zhao ◽  
Ying Fei Nan
Keyword(s):  
Surface Roughness ◽  
Titanium Alloy ◽  
Ultrasonic Vibration ◽  
Experimental Research ◽  
High Surface ◽  
The Self ◽  
Deep Hole ◽  
High Surface Roughness ◽  
Low Efficiency ◽  
Better Than

Deep hole honing is the primary way of finishing, the main problems existing now are the low efficiency, high surface roughness, especially in the processing of difficult to cut materials. In this study, the test is on the titanium alloy and uses the self-developed ultrasonic vibration honing equipment. The results show that in the same conditions, the ultrasonic vibration in deep-hole honing can improve the efficiency about 1 times, and meanwhile the surface roughness can reach below 0.8μm, the oilstone is uneasy to block, and the technical effects are better than traditional honing process.

Experimental Research on CBN Grinding Wheel Mechanical Dressing with Ultrasonic Vibration Assistance

2010 ◽  
Vol 154-155 ◽  
pp. 573-577 ◽  
Author(s):  
Guo Fu Gao ◽  
Bo Zhao ◽  
Jie Zhao ◽  
Jing Lin Tong
Keyword(s):  
Surface Topography ◽  
Ultrasonic Vibration ◽  
Experimental Research ◽  
Experimental Results ◽  
Clear Relationship ◽  
Grinding Wheel ◽  
Acoustic Parameters ◽  
Cbn Wheel ◽  
Vibration Assistance ◽  
Cbn Grinding Wheel

The experimental research on CBN grinding wheel mechanical dressing assisted by ultrasonic vibration was carried out. Experimental results showed that ultrasonic vibration dressing is capable to improve surface topography and roundness of CBN wheel as other untraditional dressing methods. Compared with traditionally mechanical dressing, the counts of static effective grains of CBN grinding wheel dressed assisted by ultrasonic vibration increased clearly and it had clear relationship with the acoustic parameters and the dressing lead. The grains had a large protrusion height and kept good integrity after ultrasonic dressing. The technology of vibration dressing is able to prepare precisely the CBN grinding wheel.

scholarly journals Quality estimation of stochastic control system using simulation methods

2021 ◽  
Vol 61 ◽  
pp. 29-37
Author(s):  
Linas Aidokas ◽  
Laimutis Adolfas Telksnys
Keyword(s):  
Control System ◽  
Control Systems ◽  
Stochastic Control ◽  
Human Behavior ◽  
Experimental Research ◽  
Simulation Modeling ◽  
Management Systems ◽  
Simulation Methods ◽  
Quality Estimation ◽  
Stochastic Control System

The stochastic control system is investigated.  The article solves the problem of human-robot humanoid communication.  The problem arises in the development of human behavior formation management systems. They describe human behavior in terms of probabilistic characteristics. Such control systems are stochastic. The management system of human behavior formation and its functioning is described quality assessment. The problem is solved by simulation modeling. The software implementing the method is described. The results of experimental research are presented.

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