control of a fluid catalytic cracker

Development of DMC controllers for temperature control of a room deploying the displacement ventilation HVAC system

... [19] Hasnain, S.M., Alawaji, S.H., A1 -Ibrahim, A and Smiai, M.S (1999), Application of Thermal Energy Storage in Saudi Arabia International Journal of Energy Research, vol 23, pp 117-124 [20] Zaheer-uddin, ... department of Mechanical Engineering and Materials Science at Washington University in St Louis, MO, USA He is a Fellow of ASME, AIAA, IEEE, and SAE E-mail address: rka@wustl.edu Huijun Gao received ... was created to simulate the temperature of the exterior wall of the room This temperature curve simulated the exterior surface and was assumed to be at a constant value of 320K A 3-D Cartesian...

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556
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A park like transformation for the study and the control of a nonsinusoidal brushless DC motor

Danh mục: Tài liệu khác

... self-inductance and the mutualinductance of the stator coils Since we assume a constant airgap and no saturation, L, and M, are constant ara arb , and arc the rotor fluxes induced in the stator phases are ... are surface mounted and have the same permeability as air As a result, the armature reaction is negligible The magnetic circuit has an important air part so that the effects of the saturation in ... linearization control to nonlinear systems [111, Indeed, the nonlinear feedback linearization scheme is based on a coordinate transformation and an input transformation as well But the main advantage...

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Tài liệu ime Control of a Three Phase 4 Wire PWM Inverter with Variable DC Link Voltage and Battery Storage for PV Application doc

Danh mục: Cơ khí - Chế tạo máy

... 1, January 1991, pp 62-72 [2] Takao Kawabata, Takeshi Miyashita and Yushin Yamamoto, "Dead Beat Control of threePhase PWM Inverter", IEEE Transactions on Power Electronics, Vol 5, No 1, January ... that it does not affect the output voltage References [1] Takao Kawabata, Takeshi Miyashita and Yushin Yamamoto, "Digital Control of three-Phase Inverter with LC Filter", IEEE Transactions on Power ... c controllable dc link volta as indica in the ri age ated ight hand sub b diagram d Figure capacitor v voltage of the output filt with unbalanced load and controlled DC lin ter d o nk vo oltage...

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báo cáo hóa học: "Principal components analysis based control of a multi-dof underactuated prosthetic hand" docx

Danh mục: Điện - Điện tử

... Ferrata 1, 27100 Pavia, Italy 2ARTS Lab, Scuola Superiore Sant’Anna, V.le Piaggio 34, 56025 Pontedera (PI), Italy 3EUCENTRE Foundation, Via Ferrata 1, 27100 Pavia, Italy Page 12 of 13 Authors’ contributions ... control method had been firstly tested onto a virtual-reality model of a 15 DoFs hand [40] Simulations of hand movement were performed employing a real human hand PCs matrix available from Santello ... signal As a matter of fact, increasing the number of DoFs (i e dexterity) means either that the system should take care of carrying out the grasp with some level of automatism, as in the SAMS...

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báo cáo hóa học:" Force-feedback interaction with a neural oscillator model: for shared human-robot control of a virtual percussion instrument" doc

Danh mục: Hóa học - Dầu khí

... Force–feedback interaction with a neural oscillator model: for shared human–robot control of a virtual percussion instrument Edgar Berdahl∗ (edgar.berdahl@imag.fr), Claude Cadoz (claude.cadoz@imag.fr) and ... For example, Ajay Kapur has designed a robotic drummer that automatically plays along with real human performers, such as sitar players [4] Similarly, researchers at the Georgia Institute of Technology ... force–feedback interaction A linear-only version of the mechanical analog model was proposed earlier by Claude Cadoz and Daniela Favaretto They presented an installation documenting the study at the...

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Báo cáo y học: "Mechanisms employed by retroviruses to exploit host factors for translational control of a complicated proteome" pot

Danh mục: Báo cáo khoa học

... recapitulate IRES activity A possible caveat is that the transfected RNAs may fail to interact with necessary IRES-transacting factors (ITAFs) in the nucleus An alternative approach to measure ... protein & RNA Examples of interacting virusa PFV, HIV-1 PFV Tas and HIV-1 Tat act as RNA silencing suppressors that combat the antiviral effect of small RNA pathway Also miRNAs may be encoded ... translation of PCE-containing mRNAs [46] (Table 2) RHA is a multifunctional DEIH box helicase and RNA binding protein, and deregulation of RHA has been associated with various cancers and autoimmune...

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development and control of a holonomic mobile robot for mobile manipulatoion tasks

Danh mục: Điện - Điện tử - Viễn thông

... work of all the individuals stable platform for mobile manipulation there, especially Anthony del Balso, Rich Legrand, We have also described a new approach for a mod- Jim Slater and John Slater ... inverses of Jacobians in the past for manipulators because the meaning of minimizing quantities which have a combination of linear and angular units is not well deﬁned The two proposed generalized ... (West and Asada 1994) All of these mechanisms, except for some types with ball wheels, have discontinuous wheel contact points which are a great source of vibration; primarily because of the changing...

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Proceedings VCM 2012 40 nonlinear adaptive control of a 3d overhead crane

Danh mục: Cơ khí - Chế tạo máy

... Raja Ismail, M .A Ahmad, M.S Ramli, F.R.M Rashidi, Nonlinear Dynamic Modeling and Analysis of a 3-D Overhead Gantry Crane System with Payload Variation, ems, pp.350354, 2009 Third UKSim European ...  sa   a  Caa      (15) where    τ a  M am q rm   M aa q   Cam q rm    Caa q   G a (q) We can be expressed τ m and τ a as in term of a known matrix ω m , ω a and ... dynamics of the load are modified to make his job easier A number of researchers developed damping controllers employing feedback signals of the load sway angles and their rate (Henry et al.,...

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563
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High performance control of a three phase PWM rectifier

Danh mục: Cao đẳng - Đại học

... North Carolina, USA, 2005 B Yin, R Oruganti, S K Panda, and A K S Bhat, “Performance comparison of voltage mode control and current mode control of a three-phase PWM Rectifier based on a dual SISO ... so that linear control can be applied An optimal linear quadratic regulator with integral action (LQI regulator) [21] and a pole placement controller [20] have been applied to a PWM 24 Chapter ... phase loads Voltage imbalances due to imbalances in phase loads can be particularly severe if large single phase loads, such as arc furnaces are used [6-7]  Asymmetrical winding of transformers which...

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Control of a macro mini robotic manipulator

Danh mục: Tổng hợp

... reach arms can offer a large workspace and fast response However, correction of small end-point errors requires movement of several manipulator actuators Thus, each actuator has to be capable of ... (similar to that of the Macro manipulator), small tracking and steady state errors (similar to that of the Mini manipulator) Thus, the combined system has taken full advantage of the Macro and ... appropriate controller design, offers a possible solution to a wide range of applications that require fast, and precise manipulation over a large workspace [2] There are several advantages offered...

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Control of a macro mini robotic manipulator

Danh mục: Tổng hợp

... reach arms can offer a large workspace and fast response However, correction of small end-point errors requires movement of several manipulator actuators Thus, each actuator has to be capable of ... (similar to that of the Macro manipulator), small tracking and steady state errors (similar to that of the Mini manipulator) Thus, the combined system has taken full advantage of the Macro and ... appropriate controller design, offers a possible solution to a wide range of applications that require fast, and precise manipulation over a large workspace [2] There are several advantages offered...

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Design and control of a small size humanoid robot

Danh mục: Tổng hợp

... Cartesian space to joint space, giving instructions that the actuators require The advantage of planning in Cartesian space is that path planning is on parameters with resultant of motions of ... hardware, (2) walking control and (3) artificial intelligence CHAPTER 2: LITERATURE REVIEW 2.1 Mechanical Design and Hardware In the area of mechanical design, one of the important areas is ... the sagittal plane of the lower body of a typical biped, with three rotational joints at each leg CHAPTER 5: WALKING CONTROL 37 Fig 5.1 Sagittal plane of the lower body of a typical biped As shown...

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Design and control of a soccer playing humanoid robot

Danh mục: Tổng hợp

... repetitive and hazardous tasks can be dated back to the era of ancient Greek and Egyptian with their automata More recently, Leonardo da Vinci, a talented and famous Italian artist and engineer ... example, aluminum alloy[41], sheet metal [7] and magnesium alloy [4] Being light, strong and easy to fabricate are a few features that make aluminum alloy the favorite material in many humanoid ... rather than in industrial factories as we saw in later half of last century It seems that making a humanoid robot able to walk stably is not a too difficult task nowadays Presently, most humanoid...

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Design and control of a teleoperation system for humanoid walking

Danh mục: Tổng hợp

... equations as the human arm One advantage of this approach is that it is relatively easy to design an exoskeleton that can track the entire workspace of the human arm Apart from the difficulty of wearing ... user a full information for the hardware and software interface The humanoid robot weighs 6kg and stands 48cm tall It has a total of 20 Degree of Freedom (DOF) - DOF each leg and DOF each arm ... initialization This alignment slot and the jig has the clearance of ± 0.5mm Attachment Point Attachment points are important to enable accurate tracking of the joint rotation of the human operator...

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Dynamic simulation and control of a distillation column

Danh mục: Tổng hợp

... have given a comprehensive description of distillation column control objectives, which are material balance control, product quality control and satisfaction of constraints The material balance ... Dynamic Simulation 19 Table 3.3 Data for and Results from Short-cut Distillation 21 Table 3.4: Possible Pairings of Controlled and Manipulated Variables 27 Table 3.5: Significance of Relative Gain ... simulation Note that the difference in value of λ obtained using -0.5% and +0.5% change in the manipulated variable is not significant to affect the pairing of controlled and manipulated variable...

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Dynamics and control of a flapping wing aircraft

Danh mục: Tổng hợp

... Schematic of a root-flapping wing seen from behind  a θ θω+δθ Figure 3.3: An illustration of dynamic twist at a particular time instant Dynamics and Control of a Flapping Wing Aircraft 15 Computational ... in that camber and leading edge suction effects, as well as post stall behaviour, were also accounted for The analysis was based on the assumptions that the Dynamics and Control of a Flapping ... section is separated According to DeLaurier (199 3a) , it is assumed to be half that of the attached flow in equation (3.24): (dN a ) sep = Dynamics and Control of a Flapping Wing Aircraft dN a (3.31)...

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Modeling and control of a heat gun

Danh mục: Tổng hợp

... heat gun are also proposed They are proportional -integral-derivative control, state feedback control, linear-quadratic statefeedback regulator and linear-quadratic-Gaussian control For each control ... Heat Gun 18 (a) Air temperature of case (b) Air velocity of case (c) Air temperature of case (d) Air velocity of case (e) Air temperature of case (f) Air velocity of case (g) Air temperature of ... as given in Section 1.1 The advantages of the newly designed heat gun, as compared to commercial air heaters, are as follows: • This heat gun has a range of controllable air temperature and air...

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Fuzzy Control of a Gantry Crane System

Danh mục: Điện - Điện tử

... “Fuzzy control of an overhead crane performance comparison with classic control , Control Engineering Practice, Vol.3, No.12, 1995, pp.1687-1696 J Yi, Naoyoshi Yubazaki, and Kaoru Hirota, “Anti-swing ... Proposal for Control Theory – Master of Science in Information Technology Fall 2004, Control Laboratory, Aalborg University Esbjerg • • Modeling and Matlab/Simulink simulation Experimental tests ... fuzzification A/ D Fig A framework of a Fuzzy Control System References (can be available upon requirement) • • • DE-6 Gourp 672 (Spring 2004) report: Control of the Crane Project 2004 A Benhidjeb and G.L...

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AN0532 servo control of a DC brush motor

Danh mục: Cao đẳng - Đại học

... Loads extended math library AARG and BARG ; ; ARGUMENTS: A => AARG ; B => BARG ; ; TIMING (cycles): LOADAB MACRO MOVFP MOVFP MOVFP A, B A+ B0,AARG+B0 A+ B1,AARG+B1 B+B0,BARG+B0 ; load lo byte of A ... CPFSGT CALL WREG SATFLAG doIntegral ; if previous output saturated, ; not accumulate integrator LOADAB CALL ADD32 INTEGRAL,KI Dmult DPX,Y ; compute KI*INTEGRAL MVFP16 SUB16 MVFP16 CALL ADD32 U0,AARG ... etc Alternatively, the additional processing time might be used to improve the performance of compensator and trajectory generation algorithms A further advantage is that for many embedded applications...

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AN1078 sensorless field oriented control of a PMSM

Danh mục: Cao đẳng - Đại học

... means appliance makers now have an economical way to offer a range of appliance models that use PMSM or other type of motors with sensorless FOC algorithm control These software-based motor control ... frequently deploy appliance design teams that collaborate across many geographies It is easy to imagine a scenario in which the implementation of FOC for an appliance may have come from place A, the user-interface ... frame using the new angle This calculation provides the next quadrature voltage values vα and vβ The vα and vβ values are transformed back to 3-phase values va, vb and vc The 3-phase voltage values...

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