Port Said University, Faculty of Engineering
Port-Said Engineering Research Journal
1110-6603
2536-9377
24
2
2020
09
01
The Relation between Alexander’s Fifteen Fundamental Properties and Sustainability in Office Buildings
1
9
EN
Mayar
El-Sayed
Moeat
Architecture and Urban Planning Department, Faculty of Engineering, Port Said University, Egypt, email: Aboeinen@hotmail.com
mayar.el-sayed@eng.psu.edu.eg
Osama
M. Abo El Enein
faculty of engineering port said university
aboeinen@hotmail.com
Dina
Samy
Noaman
Architectural Engineering and Urban Planning Department, faculty of engineering, port said University ·
dinasamy87@gmail.com
10.21608/pserj.2020.25409.1035
The relation between alexander’s fifteen fundamental properties and sustainability in office buildings Abstract : <br />The Shading system plays a significant role in the building envelope design. In addition, the shading system geometry controls both appearance and performance of the building. On the other hand, Christopher alexander -theorist and architect- developed a theory about the impact of certain geometrical rules on the human beings psychological needs. Alexander found that these rules have a great impact in removing anxiety and creating a comfortable feeling to the building occupants. Therefore, this paper investigates the following points: first, the external shading, second , the alexandrine rules and theory and third the relationship between alexandrine geometric rules and building sustainability .The investigation is done by analyzing 30 case studies which certified sustainable. The analysis resulted that there is a certain relation between using each of the fifteen alexandrine rule and achieving sustainability of the building.
Alexander‘s Fifteen Properties,shading,Sustainability,office building
https://pserj.journals.ekb.eg/article_98810.html
https://pserj.journals.ekb.eg/article_98810_134d25858020dd0306bdc43fb3ad671b.pdf
Port Said University, Faculty of Engineering
Port-Said Engineering Research Journal
1110-6603
2536-9377
24
2
2020
09
01
Smart Breathing Wall for Integrated Ventilation: Heat Exchange and Indoor Air Quality Improvement
10
17
EN
Ghada
Shalaby
Architect at CHP Company
ghada.ali@eng.psu.edu.eg
Osama
M. Abo El Enein
faculty of engineering port said university
aboeinen@hotmail.com
Amany
M.
Saif
Mechanical Power Engineering Department,
Faculty of Engineering, Port Said University, Port said, Egypt.
amanysaif@hotmail.com
Dalia
El Gheznawy
Lecturer of Architecture and Urban Planning Department – Faculty of Engineering – Port Said University
dalia.mohamed@eng.psu.edu.eg
10.21608/pserj.2020.25973.1038
There are many ideas and applications for incorporating nature into buildings to improve the quality of the indoor air and to achieve a higher percentage of natural ventilation with pollution reduction. One such idea is to use the Breathing Walls "BW" built on porous materials. The energy used in air-conditioned buildings is reduced by these materials. BW suggests a conceptual design suitable for hot climates and capable of controlling airflow across the entire surface and refrigerating internal spaces in various cooling ways. BW forming all or part of an air-permeable building envelope or exterior provides a comprehensive solution to that and severe issue of self-inflicted environmental harm that many cities now face. BW are the walls that have pores inside them and are capable of spreading water vapor and helping to get rid of moisture and raise indoor air quality (IAQ). In both a social and economic context, IAQ is a significant issue. The definition of breathing walls, their characteristics, and the environmental problems that the BW solve will be discussed in this paper, as well as their impact on the improvement of the indoor air quality.
Breathing walls,Porous walls,Natural Ventilation,Indoor air quality
https://pserj.journals.ekb.eg/article_98782.html
https://pserj.journals.ekb.eg/article_98782_f35a20e11d77f517841a1a5d0c08a42a.pdf
Port Said University, Faculty of Engineering
Port-Said Engineering Research Journal
1110-6603
2536-9377
24
2
2020
09
01
Spontaneous Areas in Egypt and the Concept of Self-Sufficiency
18
30
EN
Hager
M.
Elkhodary
Architectural Engineering and
Urban Planning Department
Faculty of engineering
Port Said University
hajar.mohamed@eng.psu.edu.eg
Heba
A.
Hussien
Architectural Engineering and
Urban Planning Department
Faculty of engineering
Port Said University
heba.adel@eng.psu.edu.eg
Medhat
A.
Samra
Architecture Department
Faculty of Engineering
Mansoura University
medhatsat@mans.edu.eg
Ashraf
A.
Elmokadem
0000-0002-5751-5561
faculty of engineering port said university
elmokadem1@gmail.com
10.21608/pserj.2020.25511.1037
Egypt faces many urban challenges such as Spontaneous growth on agricultural lands, which causes the inability to fulfilling the needs of the increase population, and it is necessary to contribute to the development of a comprehensive strategy to guide the growth of those spontaneous self-constructed communities (as we redefine them in this paper) correctly to be effective communities. The trend of self-sufficiency in development contributes to the effectiveness of those areas, in not completely relying on the state only and contributing to a comprehensive renaissance, and facing some of urban challenges by their residents with the help of specialists and those interested. Since these regions possess many characteristics of self-sufficiency ,such as, collective living , proximity and they are spontaneous, self-constructed communities by their residents to solve their problems and this was a reason to think about the possibility of applying the idea of self-sufficiency to developing them. Therefore, we in this paper aims to clarify the idea of self-sufficiency and its importance, and an experiment for its application to extract some criteria by which it is possible to start a strategy to guide the growth of spontaneous communities in Egypt with the concept of self- sufficiency.
spontaneous growth,self-development,self-construction,self-sufficient communities,Self sufficiency
https://pserj.journals.ekb.eg/article_110073.html
https://pserj.journals.ekb.eg/article_110073_8080ebba4beb984ba324ddddd9659fb2.pdf
Port Said University, Faculty of Engineering
Port-Said Engineering Research Journal
1110-6603
2536-9377
24
2
2020
09
01
Stability Analysis of Geotextile Reinforced Marine Causeways
31
39
EN
Heba
Koura
Civil Engineer at Suez Canal Authority
hebakoura91@gmail.com
Ehab
Tolba
Civil Engineering Department, Faculty of Engineering, Port Said University, Port Said, Egypt
prof.tolba@gmail.com
Elsayed
Galal
Civil Engineering Department, Faculty of Engineering, Port Said University, Port Said, Egypt
elsayed.galal@psu.eng.edu.eg
10.21608/pserj.2020.23793.1031
The use of geotextile tubes as retaining systems, geotechnical application, and coastal protection in temporary and permanent structures is gaining lots of concern throughout the recent decades. In the present study, computer software, ABAQUS, was used to investigate the stability of geotubes as soil retaining structure for marine causeway. Nine scenarios comprised of two geotubes lining the side of a 1:1 slope causeway were modeled to explore their effect on the causeway displacement under surcharge loads. The stability of the system was investigated through using different deformed shapes of geotubes. These deformed shapes were obtained by using different pumping pressures (0.0, 5.0, and 20.0 kPa). Moreover, the effect of tidal range was studied by defining different water depths (0.5, 1.5 and 2.5 m measured from the causeway toe). The results showed that the use of geoextile tubes subjected to pumping pressure of 0.0 and 5.0 kPa improves the deformation behavior of the causeway with water depths of 0.5 and 1.5 m. While, the deformation was aggravated with water depth of 2.5 m when using geotextile tubes subjected to pumping pressures of 0.0 , 5.0 , and 20.0 kPa. On the other hand, the model ceased when applying pumping pressure of 20.0 kPa with water depths of 0.50 and 1.50 m due to the failure of the upper tube. Therefore, it is recommended to use the geotextile tubes subjected to pumping pressure of 0.0 and 5.0 kPa in case of lower water depths only.
Geotextile Tubes,Pumping Pressure,Marine Causeways,ABAQUS,Slope Stability
https://pserj.journals.ekb.eg/article_75745.html
https://pserj.journals.ekb.eg/article_75745_b4650893790e48c88c596b1b0f291597.pdf
Port Said University, Faculty of Engineering
Port-Said Engineering Research Journal
1110-6603
2536-9377
24
2
2020
09
01
A Roadmap for Establishment of an Early Warning System for Nile Water Quality in Egypt
40
51
EN
Mohamed
E.
Gabr
0000-0003-2448-601X
Civil Engineering Department, Higher Institute for Engineering and Technology, New Damietta, Ministry of Higher Education, Egypt
m_egabr@yahoo.com
10.21608/pserj.2020.18756.1014
The Nile River is the lifeblood of Egypt. The necessity to rationalize Nile’s water uses and protecting from pollution and accidents in Egypt is an urgent issue. Continuous monitoring and utilizing the early warning system (EWS) were becoming important tools to protect and manage water sources for sustainable development. The aim of this study is to design and propose guidelines for the establishment of an (EWS) in real-time to ensure the safety of Nile water in Egypt and to mitigate the water pollution disaster by terrorism and accidents. To achieve this objective, (1) it is reviewed the EWS basic structure regarding risk knowledge, monitoring system, active communication of information and the plans for readiness and response (case study the Rhin river), (2) it is assessed the current water quality monitoring in the Nile and the current problems regarding the implementation of the early warning system for Nile water quality, (3) it is examined the characteristics of a Nile EWS, and (4) it is recommended a roadmap for establishing the proposed EWS. The roadmap for EWS describes a process in four steps, a start-up by a letter of interest from all ministers, organizational setup, implementation and testing, and continuous improvement. A steering committee consisting of the main ministries recruited from the National Council for the protection of the Nile that determines responsibilities, and that can take corrective actions to optimize the EWS. The proposed EWS will provide a sufficient information database for the decision-makers in sustainable water management.
Nile Water Quality,Early Warning System,Water Pollution Risk,Egypt Water Management
https://pserj.journals.ekb.eg/article_102959.html
https://pserj.journals.ekb.eg/article_102959_8a1bb2dd01318144427622185086cc58.pdf
Port Said University, Faculty of Engineering
Port-Said Engineering Research Journal
1110-6603
2536-9377
24
2
2020
09
01
A Hydrodynamic Study of Water Flushing Parameters to Improve the Water Quality Inside Marinas and Lagoons
52
62
EN
Elsayed
Galal
0000-0002-1079-1868
Department of Civil Engineering, Faculty of Engineering, Port Said University
elsayed.galal@eng.psu.edu.eg
Ahmed
Lebleb
Coastal and Marine Engineer at Dar Al-Handasah
ahmed.lebleb@dar.com
Ehab
Tolba
Professor, Faculty of Engineering, Port Said University, Egypt,
tolba_1966@yahoo.com
10.21608/pserj.2020.23849.1032
This research describes how integration of engineering and environmental aspects into the planning with extensive use of numerical hydrodynamics models by using MIKE 21 software. A parametric study for different parameters which affect the residence time hence the water quality in lagoons, marinas, harbors and coastal basins was carried out to establish guidelines to improvement methods for water flushing of marinas and lagoons. Finite element conceptual computer models are applied to simulate and investigate the most important factors dominate the resident time and water exchange rate like tidal inlets characteristics (number-location-width), the shape of water body, basin dimensions and tidal variations. The boundary condition, water level variations used in simulations are collected based on the conditions of fishery ports and lagoons along Egyptian coastal line in Mediterranean and red sea. This study conducted a wide range of numerical simulation (more than 50 HD models) with different geometry and boundary conditions. The results showed that the square shape of water surface area is more efficient for small water body areas. While, as the area required increased, the rectangular water surface efficiency become closer. The inlet width and its location should be determined wisely to achieve the optimization for the usage of project. Finally, the results showed that as the level variations values increased, the maximum flood current velocities at the entrance increased. In addition, the flow spreading quality increased with higher water level values over the all water surface area regardless the water depth.
Flushing Time,Advection-dispersion,water quality,Tidal prism
https://pserj.journals.ekb.eg/article_75816.html
https://pserj.journals.ekb.eg/article_75816_f3aaf96564a1d895f5c28f46e7b43d95.pdf
Port Said University, Faculty of Engineering
Port-Said Engineering Research Journal
1110-6603
2536-9377
24
2
2020
09
01
Effect of Cementitious Materials Composition on Heat Evolution and Strength of Concrete
63
76
EN
Mohammed
H.
Belal
Civil Engineering Department, Faculty of Engineering, Damietta
mohammed_belal@du.edu.eg
Shady
R.
Ragheb
Department of Civil Engineering,Faculty of Engineering, Port Said University
shadyragheb@hotmail.com
Hassan
M.
Hassan
Civil Engineering Department, Faculty of Engineering, Port Said
hassan_ghattass@eng.psu.edu.eg
10.21608/pserj.2020.26323.1039
Large and massive concrete structures with high cementitious content like foundations, tunnels, bridges, dams and hydraulic structures are subjected to cracks generated and developed by internal thermal stresses and damages due to delayed ettringite formation (DEF) associated with the hydration process of cement. The Ondes bridge, Bourgogne bridge and Saint-Maurice de Beynost bridge are international examples of concrete structures damaged by delayed ettringite formation (DEF). Due to the construction expansion in Egypt and the middle east, it was necessary to study the effect of concrete constituents on the evolution of concrete heat of hydration and the differential temperature between the core and the concrete surface, as well as the mechanical properties such as the compressive strength. In this study, the effects of six types of cement, two water-binder ratios, with two different cement contents and supplementary cementitious materials like silica fume, fly ash and metakaolin were studied. The test results of hardened concrete showed that the blast-furnace cement and moderate heat of hydration cement had an obvious effect on the hydration heat rate and concrete compressive strength compared to other tested types. Partial replacement of cement by 50 % fly ash led to a decrease in maximum hydration temperature nearly by 13-14%. Replacement of cement by 15 % metakaolin led to an increase in maximum temperature by 2.9 % comparing to reference cement. A best thermal gradient of mass concrete was observed in case of using moderate heat of hydration cement, as the maximum temperature difference was 17.5℃.
hydration heat,cementitious materials,semi adiabatic,mass concrete,differential temperature
https://pserj.journals.ekb.eg/article_99802.html
https://pserj.journals.ekb.eg/article_99802_17b7e85884fc7eab2d1e844b92c9a8ae.pdf
Port Said University, Faculty of Engineering
Port-Said Engineering Research Journal
1110-6603
2536-9377
24
2
2020
09
01
Detection of Seismic Movements Using GNSS Data
77
85
EN
Rasha
Mosad
Civil engineering. Port said engineering faculty
.portsaid university
rashamosaad83@gmail.com
Ashraf
El-Kutb
Geodynamics Department, National Research Institute of astronomy and Geophysics, Helwan, Cairo.
ashrafmousa07@gmail.com
Ahmed
El-Hattab
Civil Engineering Department, Faculty of Engineering, Port Said University, Port Said, Egypt.
dr.ahmed.elhattab@gmail.com
Mostafa
Rabah
Civil Engineering Department, Faculty of Engineering, Banha University, Egypt,
mostafa_rabah@eng.psu.edu.eg
Ashraf
El-Koshy
Civil Engineering Department, Faculty of Engineering- Port Said University, Port Said, Egypt
dr.aelkoushy@gmail.com
10.21608/pserj.2020.35662.1051
Nowadays, detecting the response level of ground shaking and studying its effect on the measurements of the surface motion are considered very important, because of the spread of natural disasters, such as earthquakes, volcanoes, and tsunamis. Such disasters lead to changes in the Earth's crust and hence movements of some points. Therefore, studying these movements has great benefits, such as the ability to predict the occurrence of an earthquake, which helps to control and minimize human and economic damages. It is possible to evaluate accurately the magnitude of point displacements and to find the factors affecting these displacements. In this research work, we explain the seismic monitoring techniques using the global navigation satellite system (GNSS), which considered a powerful tool for monitoring the ground points displacements, Bernese GNSS Software 5.2[4], was used to obtain high-precision of the results of the IGS stations data and their displacements, with the application on the network stations in the study area of Turkey,(Aegean sea earthquake).
Earthquake,point movement,GNSS,IGS data,Bernese5.2
https://pserj.journals.ekb.eg/article_109336.html
https://pserj.journals.ekb.eg/article_109336_789ec4f417dfec497ba95e26835bfc4e.pdf
Port Said University, Faculty of Engineering
Port-Said Engineering Research Journal
1110-6603
2536-9377
24
2
2020
09
01
Parametric Study on Steel Girders with Corrugated Webs
86
96
EN
Muhammad
Shukry
Senior Engineer, Zagazig University Consulting Office
muhamad.elmahdy@eng.psu.edu.eg
Tarek
Sharaf
Associate Professor, Faculty of Engineering, Civil Engineering Department, Port Said University
ttsharaf@hotmail.com
Ashraf
Elsabbagh
Civil Engineering Department,Faculty of Engineering, Port Said University
ashraf_ims@yahoo.com
Mohamed
Elghandour
Faculty of Engineering, Civil Engineering Department, Port Said University
dr.elghandor@gmail.com
10.21608/pserj.2020.17735.1010
I-shaped Steel Girder with Corrugated Webs [SGCW] are used in steel structures because of their notable advantages. SGCW permit using a thin web plate without using stiffeners. This girder is useful for eliminating the use of stiffeners and larger thickness that contribute to the reduction in the weight and the cost of the girder. In this paper, a numerical study based on the Finite Element Analysis [FEA] was conducted to predict the behavior of SGCW. The verification study was conducted for previous experimental tests. Based on the previous investigations, the parametric study was carried on to investigate the actual behavior of SGCW with different parameters such as the web thickness, the girder height, the web shapes, and the corrugated angles under different loads. The results of the parametric study showed the effect of each parameter on the overall load carrying capacity of the beams and indicated that the corrugated angle is the most effective parameters for SGCW
Steel Girder with Corrugated Webs,Finite element method,Web Thickness,Corrugation Angle
https://pserj.journals.ekb.eg/article_83462.html
https://pserj.journals.ekb.eg/article_83462_8b7d0feba3423d9edfa1ab72821ebc7a.pdf
Port Said University, Faculty of Engineering
Port-Said Engineering Research Journal
1110-6603
2536-9377
24
2
2020
09
01
Design and Economics of a PV-based Pumped Hydro Storage Station in Rural Distant Areas in Egypt
97
105
EN
Hilmy
Awad
Assistant Professor, Faculty of Technology and Education, Helwan University
hilmy_awad@yahoo.com
Nadia
Shoukry
Teacher, Ministry of Education, Cairo, Egypt
am616269@gmail.com
Ahmad
Atalla
Professor, Ain Shams University
atallah_eg@yahoo.com
Hassan
Mostafa
Vice Minister, Electricity Authority, Cairo, Egypt
hassan04_egypt@yahoo.com
10.21608/pserj.2020.32005.1042
Although photovoltaic (PV) Energy is a viable solution and clean energy source, it is an intermittent source and certainly needs energy storage, particularly in the case of off-grid applications. Batteries are normally used as the common energy storage, despite all their demerits. <br />This paper presents a preliminary design and cost estimate of a potential candidate for energy storage applications, which is the PV-based Pumped-Hydro Energy Storage (PHES). The proposal is suited for application in rural and distant areas, where the public electric grid is not easily accessible. <br />The basic idea is that the required load demand is fulfilled by PV panels during the day. During the periods of high insolation, the PV panels are also used to pump water to a 31-m height tank. Then, at night or in periods of low insolation the water is allowed to flow downwards operating a hydro generator. <br />Based on the average expected load (irrigation and domestic) of distant locations in Egypt, the PV panels and reversible pumps have been sized together with other system components. A cost estimate has been done to compare batteries and PHES for the average lifetime of the two systems. <br />The cost estimate revealed that the PHES would be economically viable after 23 years of service. The system can be easy to extend to a larger scale by adding more reversible pumps and PV panels.
Photovoltaic Energy,Pumped Hydro Storage,renewable energy,Reversible pumps
https://pserj.journals.ekb.eg/article_110099.html
https://pserj.journals.ekb.eg/article_110099_98107d4139e585e28d839e685beaf3f4.pdf
Port Said University, Faculty of Engineering
Port-Said Engineering Research Journal
1110-6603
2536-9377
24
2
2020
09
01
Experimental Investigation of Generated Surface Roughness in Hard Turning of Ti6Al4V Using Coated Ceramic and CBN Inserts
106
113
EN
Al Shimaa
Abdelnasser
lecturer assistant at faculty of engineering, port said university
shimaaa_222@yahoo.com
Azza
Barakat
Production Engineering Dept., Helwan University, Cairo, Egypt
barakatazza5@hotmail.com
Samar
Elsanabary
0000-0001-9829-3814
Department of productionengineering and mechanical design, Faculty of Engineering, Port Said University, Port Said, Egypt
samar.abaas@eng.psu.edu.eg
Ahmed
Nassef
Department of Production and Mechanical Design Engineering, Faculty of Engineering, Port-Said University, Port-Fouad, Port-Said 42523, Egypt
nassef12@eng.psu.edu.eg
10.21608/pserj.2020.32857.1045
Surface finish of machined parts is a significant quality mark for a range of application such as aerospace, automotive, power transmission and generation. Therefore, optimization of surface roughness is the key factor for reliability in machining difficult-to-cut materials such as titanium-based alloys. In this study, investigation into hard turning of Ti6Al4V alloys with varying process parameters and cutting tool materials was carried out. This paper aimed to compare the generated surface roughness when turning Ti6Al4V alloys using CBN and coated ceramic inserts, independently, under different feed rate, cutting speed and depth of cut. The experiments trials were designed using Taguchi L9 and the exponential results are examined results by the analysis of variance (ANOVA). The effect of process parameters and their interactions on generated surface roughness was evaluated for the two inserts. It was found improvement in surface roughness by 34% was achieved when using coated ceramic insert compared with the results obtained using CBN insert under the same cutting conditions. CBN insert gave a better result at smallest depth of cut (0.15 mm), low feed rate (0.1 mm/rev) and high cutting speed (100 m/min) while coated ceramic tool gave a minimum surface roughness at depth of cut (0.2 mm), feed rate (0.1 mm/rev) and high cutting speed (100 m/min).
Ti6Al4V,Turning,coated ceramic insert,CBN insert,Surface roughness
https://pserj.journals.ekb.eg/article_100778.html
https://pserj.journals.ekb.eg/article_100778_28c6abe68ba556d940eeaa1efe0f07f6.pdf
Port Said University, Faculty of Engineering
Port-Said Engineering Research Journal
1110-6603
2536-9377
24
2
2020
09
01
Relative Performance of Coated Ceramic and CBN Inserts in Hard Turning of Ti6Al4V Alloy
114
121
EN
Al Shimaa
Abdelnasser
lecturer assistant at faculty of engineering, port said university
shimaaa_222@yahoo.com
Azza
Barakat
Production Engineering Dept., Helwan University, Cairo, Egypt
barakatazza5@hotmail.com
Samar
Elsanabary
Mechanical Production Dept., Faculty of Engineering, Port Said University, Egypt
samar.abbas@eng.psu.edu.eg
Ahmed
Nassef
Department of Production and Mechanical Design Engineering, Faculty of Engineering, Port-Said University, Port-Fouad, Port-Said 42523, Egypt
nassef12@eng.psu.edu.eg
10.21608/pserj.2020.32842.1044
Characteristics of cutting insert are key factors for the reliability of machining of difficult-to-cut materials such as Ti6Al4V alloy. Therefore, in this paper a comparison between the performance of two different materials, ceramic insert coated by (Al2O3+TiNC) and CBN, when turning Ti6Al4V alloy in dry environment. Effect of process parameters, feed rate, cutting speed and depth of cut, and their interactions on measured cutting temperature were examined for both inserts. Taguchi method was utilized to design of experiments (L9) and the results were analyzed by analysis of variance (ANOVA). From the results, CBN insert showed a good behavior for heat dissipation during machining compared with coated ceramic insert with a reduction in cutting temperature by 28%. Moreover, it was found that cutting temperature increased by increase in cutting speed and depth of cut and decrease in feed rate when using the two types of insert. In addition, it was observed that cutting temperature was affected by varying process parameters when machining by CBN insert more than the case of coated ceramic tool. The significant parameter affected cutting temperature in the case of CBN was feed rate followed by cutting speed. While at coated ceramic insert, the most significant parameters effect on cutting temperature was cutting speed
Ti6Al4V alloy,cutting temperature,coated ceramic insert,CBN insert,hard turning
https://pserj.journals.ekb.eg/article_100777.html
https://pserj.journals.ekb.eg/article_100777_86544c218a23cd9348108ea3eb597e28.pdf
Port Said University, Faculty of Engineering
Port-Said Engineering Research Journal
1110-6603
2536-9377
24
2
2020
09
01
A Modified Sliding Mode Control for Accurate Position Control of a Hydraulic Cylinder
122
128
EN
E.
S.
Mohammed
Mechanical Power Engineering, Faculty of engineering,Port Said University, Port Said, Egypt
ebrahim.salem@eng.psu.edu.eg
M.
M.
Hammam
Mechanical Power Engineering, Faculty of engineering,Port Said University, Port Said, Egypt
m.hammam@eng.psu.edu.eg
G.
A.Z.
Mousa
Mechanical Power Engineering, Faculty of engineering,Port Said University, Port Said, Egypt
gazmousa@hotmail.com
A.
M.
Abdul Aziz
Mechanical Power Engineering, Faculty of Engineering, Ain Shams University, Cairo, Egypt
abdelaziz_morgan@eng.asu.edu.eg
10.21608/pserj.2020.26403.1040
The Electrohydraulic Servo Systems (EHSS) are used extensively in industry such as flight, ships engineering, machines of injection molding, robotics and steel and aluminum factory's equipment. It has the advantage of high power to weight ratio, linear movement and fast response. In order to overcome the problem of nonlinearity of the controlled system, a sliding mode controller, ESMC, is proposed in such a way that the error signals modifies the ordinary switching mode control action. Pulse width modulation, PWM, technique is used to convert the control action into a digital signal capable of driving the solenoid of an electrohydraulic servo valve to control the oil flow entering the hydraulic cylinder so that its position could be controlled. A dynamic model of an electrohydraulic control system is simulated using MATLAB/Simulink software where the control parameters are optimized for experimental testing of PID and sliding mode controllers. The two controllers are then fine-tuned experimentally, and their performance is compared under square and sinusoidal reference inputs. The experiments showed that the proposed ESMC gives less steady state error, less overshoot and less settling time as compared to both PID and the ordinary switching sliding mode controllers.
Position Control,Pulse Width Modulation,hydraulic cylinder,PID control,SMC
https://pserj.journals.ekb.eg/article_96029.html
https://pserj.journals.ekb.eg/article_96029_4bc1343878d5885dd38a6f69f1cb5f35.pdf
Port Said University, Faculty of Engineering
Port-Said Engineering Research Journal
1110-6603
2536-9377
24
2
2020
09
01
Simulation Study and Experimental Position Control of Pneumatic Cylinder Using Sliding Mode Control with on/off Control Valves
129
136
EN
Y.
El-sayed
Mechanical Power Engineering, faculty of engineering,port saied university, Port saied, Egypt
y.elsayed@eng.psu.edu.eg
M.
Hammam
Mechanical Power Engineering, Faculty of engineering,Port Said University, Port Said, Egypt
m.hammam@eng.psu.edu.eg
G.
A.Z.
Mousa
Mechanical Power Engineering, Faculty of Engineering, Port Said University, Port Said, Egypt
gazmousa@hotmail.com
A.
M.
Abdul Aziz
Mechanical Power Engineering, Faculty of Engineering, Ain Shams University, Cairo, Egypt
abdelaziz_morgan@eng.asu.edu.eg
10.21608/pserj.2020.22883.1030
Simulation and experimental studies of pneumatic cylinder position control are introduced. High speed on-off solenoid air valve is used instead of the proportional control valve. Sliding mode control with error modification, SMCE, is proposed to drive the air valves with pulse width modulation (PWM) technique. Comparison of the performance of the closed loop position control using SMCE with the traditional PID is held. The simulation model is used to optimize the SMC and PID controller parameters to start the experimental test as a first trial. The experimental results for square and sinusoidal position reference show superiority of the SMCE over the PID in terms of lower steady state errors, faster settling time, and less overshoot. The root mean square error for a sinusoidal input of 0.1 Hz, is 0.22 mm for SMCE and 0.69 mm for PID controller. The maximum absolute errors are 0.66 mm and 1.46 mm for SMCE and PID respectively.
Pneumatic cylinder,Position Control,SMC,PWM,Solenoid valves
https://pserj.journals.ekb.eg/article_85757.html
https://pserj.journals.ekb.eg/article_85757_23d36f7c269097ab5f4f0ce0e3485dbf.pdf