... electronic engineering students from two different polytechnics in Malaysia, it was found that engineering students performed better in the negative design in comparison to the positive design In addition, ... effects of visual aesthetics in e-learning for engineering students Jeya Amantha Kumar* Centre for Instructional Technology and Multimedia Universiti Sains Malaysia, Pulau Pinang, Malaysia E-mail: ... Exploring the effects of visual aesthetics in e-learning for engineering students Knowledge Management & E-Learning, 10(3), 250–264 Knowledge Management & E-Learning, 10(3), 250–264 Exploring
Ngày tải lên: 10/01/2020, 10:52
underwater-model-rockets-an-innovative-design-problem-and-competition-for-undergraduate-students-in-engineering-math-and-science
... and engineering problems Page 10.1373.11 Proceedings of the 2005 American Society for Engineering Education Annual Conference & Exposition Copyright © 2005, American Society for Engineering Education ... American Society for Engineering Education Page 10.1373.3 Assigning students to teams Students completed an online survey prior to the conference The survey requests demographic information and ... increases Proceedings of the 2005 American Society for Engineering Education Annual Conference & Exposition Copyright © 2005, American Society for Engineering Education Page 10.1373.8 Repeating
Ngày tải lên: 30/10/2022, 14:54
... Aerodynamics for Engineering Students Fig. 6.47 and integrating gives after substituting for E; and E; Now, by geometry, and since EO is small, EO = 2(t/c), giving The lift/drag ... vanishes for the same reason as given above for the development leading to Eqn (6.160). Thus (6.161) Now 2 ~idx = 4a2c f 362 Aerodynamics for Engineering Students and for a particular ... equations for a flat plate There are a... total skin-friction force I ; on the surface under consideration This force is obtained by integrating the skin-friction stress over the surface For a
Ngày tải lên: 08/08/2014, 11:21
Aerodynamics for engineering students - part 9 ppt
... 486 Aerodynamics for Engineering Students devices. Accordingly, in what follows the maximization of lift for single-element aerofoils is considered in Section 8.2, followed by Section ... Aerodynamics for Engineering Students Sonic line I 1 Fig. 8.7 Schematic figure illustrating a modern supercritical aerofoil feature from the viewpoint of safety. The much sharper fall in CL ... plot in Fig. 8.2 contains much information of practical value. For example, suppose that at typical cruise conditions the value of ( U/U,)2 at the trailing edge is 0.8 corresponding to
Ngày tải lên: 08/08/2014, 11:21
Aerodynamics for engineering students - part 10 docx
... taken of aircraft taking off in humid air that show very clearly the helical trailing vortices behind the airscrew. 542 Aerodynamics for Engineering Students Rei11 trailing helical vortices ... 546 Aerodynamics for Engineering Students In the same way, by considering the angular momentum SQ = maw? where Aw is the change in angular velocity of the air on passing through the airscrew. ... propulsion 557 Substituting this value of the integral back into Eqn (9.67) gives, for the distance... vlnMo - vln(M0 - rizizt) 556 Aerodynamics for Engineering Students Now if the
Ngày tải lên: 08/08/2014, 11:21
Aircraft structures for engineering students - part 1 pps
... Aircraft Structures for engineering students To The Memory of My Father Aircraft Structures for engineering students Third Edition T. H. G. Megson i EINEMANN OXFORD AMSTERDAM BOSTON ... bending of thin plates Plates subjected to bending and twisting Plates subjected to a distributed transverse load Combined bending and in- plane loading of a thin rectangular plate Bending ... of thin plates having a small initial curvature Energy method for the bending of thin plates Further reading Problems 6 Structural instability 6.1 Euler buckling of columns 6.2 Inelastic
Ngày tải lên: 08/08/2014, 11:21
Aircraft structures for engineering students - part 2 pot
... shearing, 4p, in planes parallel to Ox and Oy in a sense tending to decrease the angle xOy Determine the direction in which a certain point on the plate will be displaced; the coordinates ... support where the section is constrained to remain plane. For most engineering structures this effect is small but, as mentioned previously, may be significant in thin-walled sections. 1 Timoshenko, ... effect is instructive. The shear strain at any point in the beam is given by Eq. (vi) P yxy = - - (b2 - 4y2) 8ZG and is obviously independent of x. Therefore at all points on the
Ngày tải lên: 08/08/2014, 11:21
Aircraft structures for engineering students - part 3 docx
... loading as shown arising from an internal pressure po. Find the bending moment at points A, B and C and locate any points of contra- flexure. A is the mid point of the arc. Neglect deformations ... with frictionless pin joints at A and B. The bending stiffness is constant in each part, with value EI for ACB and xEI for ADB. Find x so that the maximum bending moment in ADB will be one ... shown in Fig. P.4.16. Problems 117 t' Fig. P.4.16 Taking into account only strains due to bending, calculate the distribution of bending moment around the frame in terms of the force
Ngày tải lên: 08/08/2014, 11:21
Aircraft structures for engineering students - part 4 docx
... (a) Buckling coefficients for flat plates in compression; (b) buckling coefficients for flat plates in bending; (c) shear buckling coefficients for flat plates. 6.7 Inelastic buckling of ... interrivet buckling in which the skin buckles between rivets with a wavelength equal to the rivet pitch, or wrinkling where the stiffener forms an elastic line support for the skin. In ... useful in aircraft structures where longitudinal stiffeners are used to divide the skin into narrow panels (having small values of b), thereby increasing the buckling stress of the skin. For
Ngày tải lên: 08/08/2014, 11:21
Aircraft structures for engineering students - part 5 pps
... construction include lightweight ‘planks’ for cabin furniture, monolithic fairing shells generally having plastic facing skins, and the stiffening of flying control surfaces. Thus, for example, ... require stiffening, with additional provision for transmitting the concentrated load into the frame and hence the skin. With the frames in position in the fuselage jig, stringers, passing through ... the wing ribs. Figure 7.11 shows wing ribs for the European Airbus in which web stiffeners, flanged lightness holes and skin attachment lugs have been integrally machined from solid. This integral
Ngày tải lên: 08/08/2014, 11:21
Aircraft structures for engineering students - part 6 potx
... Substituting for &Jaz in Eq. (9.22) gives (9.32) Integrating Eq. (9.32) with respect to s from some origin for s to any point around the cross-section, we obtain (9.33) ... 242.5 (vi) Examination of Eq (vi) shows that q34 has a maximum value of -2 81.7... of axes, 0, froin the origin for s to any point s around the cross-section Continuing the integration completely ... Using... Substituting for aV,/dz from Eq (9.30) we have dw - = -+ p-de qs Gt ds dz du dv + -cos + + -sin+ dz dz (9.40) Integrating Eq (9.40) with respect to s from the chosen origin for
Ngày tải lên: 08/08/2014, 11:21
Aircraft structures for engineering students - part 8 doc
... skin, stringers, ribs and frames of the wing and fuselage. Frequently these regions must be heavily reinforced resulting in unavoidable weight increases. 10.5.1 Cutats in wings Initially ... structures have openings for doors, cockpits, bomb bays, windows in passenger cabins etc. Other openings provide means of access for inspection and maintenance. These openings or 'cut-outs' ... however, additional stresses are induced by the warping restraint at the built -in end; these are investigated in Chapter 11. The loads on the wing ribs on either the inboard or outboard end of the
Ngày tải lên: 08/08/2014, 11:21
Aircraft structures for engineering students - part 9 pps
... grouped toget her Finally, the internal forces in the springs may be determined from the forcedisplacement relationship of each spring Thus, if Sa is the force in the spring joining nodes 1 and ... FY;,,sin8 - Fy,j =-Fx,jsin8+ Fy,jcos8 u Writing X for cos 8 an , for sin 8 we express the above equations in matrix form as -k I B 0 0 - p X: ] { ; y , j , or, in abbreviated form ... u , ) Similarly for the spring between nodes 2 and 3 Sb = kb(u3 - u 2 ) 12.4 Matrix analysis of pin-jointed frameworks The formation of stiffness matrices for pin-jointed frameworks and
Ngày tải lên: 08/08/2014, 11:21
Aircraft structures for engineering students - part 10 pot
... under the loads, the forces in the ties and all other information necessary for sketching the bending moment and shear force diagrams for the beam. Neglect axial effects in the beam. The ties ... given in Table P.12.5(i). In this structure the deformation of each member is due to a single effect, this being axial, bending or torsional. The mode of deformation of each member is given in ... in Eq. (13.1) yields $~V~S(CCM,O + ecCL) = KO or, since in which (Y is the initial wing incidence or, in other words, the incidence corresponding to given flight conditions assuming
Ngày tải lên: 08/08/2014, 11:21
introduction to matlab for engineering students
... experience in the modeling and simulation of struc- tures and solid continua including 14 years in industry. In industry, he has been working as R&D engineer in the fields of nuclear engineering, ... scientific computing, in which they will be useful for the upcoming engineering courses. In addition, engineering students will see MATLAB in their other courses. The end of this document contains two ... reflects the ongoing effort of the McCormick School of Engineering and Applied Science leading by Dean Stephen Carr to institute a significant technical computing in the Engineering First R 2
Ngày tải lên: 24/10/2014, 23:19
Building the exercises system of developing speaking skill for pedagogical students in practicing vietnamese modules
... Vietnamese in particular is formation and develop using Vietnamese skills comprehensively: listening, speaking, reading and writing for learners. For pedagogical students, forming and developing ... system of speaking skills development for pedagogical students. Within the scope of research, we found that speaking skills training for students only mentioned indirectly in some textbooks ... Develop speaking skills for pedagogical students in teaching Vietnamese in trend of renewing the teaching methods Core spirit of innovation teaching methods is positive learners’ learning, promote
Ngày tải lên: 27/11/2014, 16:31
Applied linguistics for BA students in english
... involves giving the students information, defining the workforms in the classroom and organising teaching material Skilful classroom management involves the following areas: - organising the ... manipulating and mediating conflicts; they learn best by sharing, comparing, relating, cooperating, interviewing 3.2.2.3 Learning styles according to Willing (1987) Keith Willing, working with ... to text), sequencing events, information transfer (filling in tables, charts), filling in forms, gap-filling at sentence level, open ended questions requiring short answers Writing ability is assessed
Ngày tải lên: 29/03/2016, 14:29
aerodynamics for engineering students 5e docx
... wings are not, in general, in a single plane (in the geometric sense), but are instead inclined to each other at a small angle. Imagine lines drawn on the wings along the locus of the intersections ... Cataloguing in Publication Data Houghton, E.L. (Edward Lewis) Aerodynamics for engineering students. - 5th ed. 1 Aerodynamics I Title I1 Carpenter, P.W. 629.1’323 - For information ... V For dynamic similarity Therefore giving nf = 8 cycles per second 22 Aerodynamics for Engineering Students 1.4.2 Dimensional analysis applied to aerodynamic force In discussing...
Ngày tải lên: 05/03/2014, 17:20
Aircraft Structures for engineering students doc
... strain at a point in a deformable body in terms of the three components of displacement at that point, u, v and w. We have supposed that the body remains continuous during the deformation ... of thin plates having a small initial curvature Energy method for the bending of thin plates Further reading Problems 6 Structural instability 6.1 Euler buckling of columns 6.2 Inelastic ... bending of thin plates Plates subjected to bending and twisting Plates subjected to a distributed transverse load Combined bending and in- plane loading of a thin rectangular plate Bending...
Ngày tải lên: 26/06/2014, 23:21
Aircraft Structures for engineering students pptx
... terms. If a line element of length L at a point in a body suffers a change in length AL then the longitudinal strain at that point in the body in the direction of the line element is ... arbitrary point in a material, there are principal strains and corresponding to principal stresses aI and uII. If these stresses (and strains) are in the direction of the coordinate axes ... shear strain on an arbitrary plane at the point inclined at an angle 8 to the principal planes is y = (E~ - qI) sin 28 (1.43) Using the relationships of Eqs (1.42) and substituting in Eq....
Ngày tải lên: 27/06/2014, 14:20