ASME Technical Elective Forum

1. ASME Technical Elective Forum Spring 2006 Technical Elective Courses Mechanical and Aerospace Engineering Department

2. Technical Elective Areas • Mechanics and Systems Design • Solid Mechanics • Thermal Sciences • Aerospace • Fluid Mechanics • Manufacturing

3. Mechanics & System Design ME 304: Compliant Mechanism Design ME 313: Intermediate Dynamics of Mechanical and Aerospace Systems ME/AE 349: Robotic Manipulators and Mechanisms

4. Mechanics & Systems Design ME 304: Compliant Mechanism Design Dr. A. Midha Introduction to compliant mechanisms; review of rigid-body mechanism analysis and synthesis methods; synthesis of planar mechanisms with force/energy constraints using graphical and analytical methods; pseudo-rigid-body models; force-deflection relationships; compliant mechanism synthesis methods; and special topics, e.g. bistable mechanisms, constant-force mechanisms, parallel mechanisms, and chain algorithm in design. Emphasis will be on applying the assimilated knowledge through a semester-long group project on compliant mechanism design. Prerequisites: Vector and matrix analysis; planar kinematic analysis of mechanisms; strength of materials; linear deformation and stresses in beams; and ability to handle computer project assignments.

5. AMP Crimping Mechanisms • Two Alternative Versions of Compliant Crimping Mechanisms Designed by AMP Incorporated

6. AMP Chip Carrier Extractor • A Compliant Chip Carrier Extracting Device Designed by AMP Incorporated

7. A Compliant Gripping Device • A Poor Man’s Hand, Operated by a Wire Rope, Tied to the Torso

8. COMPLIERS: COMpliant PLIERS • Application: A Fish Hook Remover, Which Floats, and is Light-Weight and Rust-Proof

9. COMPLIERS: COMpliant PLIERS • Application: A Fish Hook Remover, Which Requires No Assembly, and is Ergonomic in Design

10. Compliant Gripper Mechanism • One-Piece Gripper for Near-Parallel Grasp (with possibility to design for constant force)

11. IntroductionCOMPLIANT MECHANISMS ... • derive some or all of their mobility from deflection of flexible members, • involve large motions and structural deformations, • may be synthesized for prescribed motions, forces or torques, and energy absorption, and • may provide reduced cost, weight, lubrication, lash, shock and noise; and improved ergonomics, assembly, and manufacturability

12. Mechanics & Systems Design ME 313: Intermediate Dynamics of Mechanical and Aerospace Systems Dr. D. McAdams Principles of dynamics are applied to problems in the design of mechanical and aerospace systems; basic concepts in kinematics and dynamics; dynamics of systems of particles; dynamics of rigid bodies, three-dimensional effects in machine elements; dynamic stability, theory and applications; methods of analytical dynamics. Prerequisites: ME 213 or AE 213

13. Mechanics & Systems Design ME/AE 349: Robotic Manipulators and Mechanisms Dr. K. Krishnamurthy Overview of industrial application, manipulator systems and geometry. Manipulator kinematics; hand location, velocity and acceleration. Basic formulation of manipulator dynamics and control. Introduction to machine vision. Projects include robot programming, vision-aided inspection and guidance, and system integration. Prerequisites: Cmp Sc 73 and ME 213

14. Solid Mechanics ME 301: Applied Anisotropic Linear Elasticity ME/AE 334: Theory of Stability I ME/AE 336: Fracture Mechanics I ME 382/AE 311 Introduction to Composite Materials and Structures

15. Solid Mechanics ME 301: Applied Anisotropic Linear Elasticity Dr. G. MacSithigh This course will introduce the student to modern developments in applied anisotropic linear elasticity. Emphasis will be on calculation and problem-solving rather than on purely theoretical considerations. Topics include: finite and infinitesimal strain measures; Cauchy and Piola-Kirchhoff stresses; elastic material models; material symmetry; boundary-value problems; Kelvin formulation in anisotropic linear elasticity; monoclinic, orthotropic and transversely-isotropic materials; Lekhnitskii and Stroh Formalisms; and bulk and surface waves in anisotropic media. Prerequisites: Some basic (undergraduate-level) knowledge of Solid Mechanics and Matrix Algebra

16. Solid Mechanics ME/AE 334: Theory of Stability I Dr. V. Birman (Internet only) Formulation of stability concepts associated with columns, beams, and frames. Applications to some engineering problems utilizing numerical methods. Prerequisites: BE 110, Math 204 and either BE 150 or ME/AE 160

17. AE/ME 334Stability of Engineering Structures Victor Birman (vbirman@umr.edu) Introduction to the Course

18. The course will prepare the students to design columns, plates, shells and beam-columns. Inelastic buckling, effects of shape imperfections, and large deformations will be reviewed. Numerous application examples will be presented. Design equations and methods used in industry will be discussed.

19. Intended audience: Researchers: Theoretical foundations of stability problems, their formulation and methods of solution; Engineers: Identifying stability problems, solving “simple problems,” comprehending and interpreting FEA solutions.

20. Outline of the course: Chapter 1: Introduction Chapter 2: Buckling of bars (columns) Chapter 3: Buckling of plates Chapter 4: Buckling of shells Chapter 5: Beam-columns; Chapter 6: Torsional and lateral buckling Projects: Four large industrial projects (designing structures subject to compressive loads). Students have 3 or 4 weeks to work on each project.

21. Projects will be defended in person or via e-mail/telephone. The performance of students is judged based on their projects. The projects replace homework assignments and tests. Course materials: Every student will receive a CD RAM disc with the copies of all slides used in the course. The students will also receive copies of relevant printed materials (free of charge).

22. Solid Mechanics ME/AE 336: Fracture Mechanics I Dr. L. Dharani Linear elastic and plastic mathematical models for stresses around cracks; concepts of stress intensity; strain energy release rates; correlation of models with experiment; determination of plane stress and plane strain parameters; application to design. Prerequisites: BE 110

23. AE/ME 336/ME Fracture Mechanics Lokesh Dharani Introduction

24. Course Information & Grading • Prerequisite: BE/IDE 110 Mechanics of Materials • Text: “Fracture Mechanics” byT. L. Anderson, CRC Press • Grading: • 3 in-class, closed-book tests 70% • Assignments & Projects 20% Follow up course - Fall 2006 ME 436 Advanced Fracture Mechanics

25. Could a machine operate safely with cracks? • All man made structures contain flaws or defects or cracks! • The question is, could we design structures so that they operate safely in the presence of known or unknown flaws? • Based on mechanics of materials approach, we cannot.

26. Mechanics of Materials Approach to Design Yield Strength Applied Stress • Design stress ≤ Yield Strength • sd = sYS • MoM Approach assumes that materials and structures are “defect free”. • Given two parameters, Applied Stress (loading) & Strength (material property)

27. Fracture Mechanics Approach to Design • Fracture mechanics approach assumes that “all” materials and structures contain inherent “flaws/cracks” so failure occurs well below the static strength. • Three parameters appear in the fracture mechanics design methodology: Applied Stress (loading), Fracture Toughness (material property) and Flaw size (quality control).

28. Fracture Mechanics Approach to Design s d Applied Stress NDT/ NDI Flaw Size a Fracture Toughness K IC

29. Fracture Mechanics - Objective • Since we cannot build “defect free” structures, we would like to: • Calculate safe load for a known defect • Determine safe defect size for a given load • select a material for a design load & defect • Determine “safe operating life” before a defect grows and results in a catastrophic failure. • Incorporate “damage tolerance” features so as to prevent catastrophic failures if an unexpected failure does occur

30. Fracture Mechanics - Objective • To learn to deal/live with cracks!!!

31. Solid Mechanics ME 382/AE 311: Introduction to Composite Materials and Structures Dr. K. Chandrashekhara (KC) Introduction to fiber-reinforced composite materials and structures with emphasis on analysis and design. Composite micromechanics, lamination theory and failure criteria. Design procedures for structures made of composite materials. An overview of fabrication and experimental characterization. Prerequisites: BE 110

32. ME 382/AE311Introduction to Composite Materials and Structures K. Chandrashekhara

33. Course Contents • Fibers and Matrices • Composite Manufacturing • Micromechanics • Orthotropic Lamina • Laminated Composites • Interlaminar Stresses • Failure Analysis • Design of Joints • Experimental Characterization

34. Reinforcement Matrix Composite = + Composite Material A combination of two or more materials to form a new material system with enhanced material properties

35. Advantages of Composite Materials • High Strength to Weight Ratio • Corrosion & Weather Resistance • Design Flexibility • Extended Service Life • Ease of Assembly • Low Maintenance

36. Applications • Transportation • Marine • Aerospace and Military • Construction • Electrical / Electronics • Sporting Goods • Medical

37. Composite Manufacturing Techniques • Hand Lay-up • Autoclave • Compression Molding • Pultrusion • Filament Winding • Resin Transfer Molding • Injection Molding

38. Thermal Sciences ME 333: Internal Combustion Engines ME 371: Environmental Control

39. Thermal Sciences ME 333: Internal Combustion Engines Dr. J. Drallmeier A course dealing primarily with spark ignition and compression ignition engines. Topics include: thermodynamics, air and fuel metering, emissions and their control, performance, fuels, and matching engine and load. Significant lecture material drawn from current publications. Prerequisite: ME 221

40. Thermal Sciences ME 371: Environmental Control Dr. H. Sauer Theory and applications of principles of heating, ventilating and air conditioning equipment and systems; design problems. Physiological and psychological factors relating to environmental control. Prerequisites: ME 221 and accompanied or preceded by ME 225

41. Aerospace AE 233: Introduction to Aerothermochemistry AE 314: Spaceflight Mechanics AE 335: Aerospace Propulsion Systems AE 369: Introduction to Hypersonic Flow AE 382: Spacecraft Design II

42. Aerospace AE 233: Introduction to Aerothermochemistry Dr. F. Nelson Principles of thermochemistry in reacting flow including an introduction to fundamentals of quantum mechanics, statistical mechanics and statistical thermodynamics. Applications in flow through nozzles and shock waves, combustion, aerodynamic heating, ablation and propulsion. Prerequisites:  AE 271

43. AE 233 • Introduction to Aerothermochemistry • Instructor H. F. Nelson • Prerequisite: AE 271 • Outline • Ideal Gas Mixtures • Combustion Reactions and Heat Transfer • Equilibrium Chemistry • Shock Waves and Nozzle Reacting Flow • Atmospheric Entry

44. Aerospace AE 314: Spaceflight Mechanics Dr. H. Pernicka Topics in orbital mechanics, including: the time equation, Lambert’s problem, patch-conic method, orbital maneuvers, orbit determination, orbit design, and the re-entry problem. Prerequisites: AE 213

45. Aerospace AE 335: Aerospace Propulsion Systems Dr. D. Riggins Study of atmospheric and space propulsion systems with emphasis on topics of particular current interest. Mission analysis in space as it affects the propulsion system. Power generation in space including direct and indirect energy conversion schemes. Prerequisites: AE 235

46. Aerospace AE 369: Introduction to Hypersonic Flow Dr. F. Nelson A study of the basic principles of hypersonic flow, inviscid and viscous hypersonic flow, application of numerical methods, high temperature flow, consideration of real gas and rarefied flow, and applications in aero-dynamic heating and atmospheric entry. Prerequisites:  AE 271 andME/AE 331

47. Introduction to Hypersonic FlowAE 369 Text: Hypersonic and High Temperature Gas Dynamics By John D. Anderson Instructor H. F. Nelson Prerequisite: AE 271

48. Course Outline • Inviscid Hypersonic Flow • Local Surface Inclination Methods • Approximate Methods • Exact Methods • Viscous Hypersonic Flow • Boundary Layers • Aerodynamic Heating • Viscous Interaction • Computational Hypersonic Flow

49. Aerospace AE 382: Spacecraft Design II Dr. H. Pernicka As a continuation of AE 380 from the fall semester, detailed spacecraft subsystem design is performed, leading to procurement of components. As schedules permit, spacecraft fabrication and test commence. Development of labs to facilitate spacecraft test, operation, and data analysis continues. Prerequisites: AE 235, AE 253, AE 301 (Spacecraft Design I) for AE majors; consent of instructor for non-AE majors. 

50. Fluid Mechanics ME/AE 331: Thermofluid Mechanics II