Course code: wb3422-03

Course name: Design of transport equipment

This concerns a Course

ECTS credit points: 5

Faculty of Mechanical Engineering and Marine Technology

Section of Transport Technology

Lecturer(s): dr.ir. A.J. Klein Breteler, ir. K.F. Drenth, prof.ir. J. Rijsenbrij, ir. W. van den Bos

Tel.:  015 - 27 83130 /      

Catalog data:

Overview of typical transport equipment , including crane configurations (mainly non-bulk goods). Application of mechanisms (kinematics and dynamic aspects). Stability, balancing and vibration problems. Mechanical power and selection of a driving motor. Typical components like grabs, spreaders, wheels, belts  and cables. Large structures (lattices): details regarding  stress, deformation and fatigue. Construction standards for mechanical design. Application of design methodology (morphological matrix, multi-criteria analysis). CE-marking and tender documents

Course year:

MSc 1^st year

Course language:

English

In case of Dutch: Please contact the lecturer about an English alternative, whenever needed.

Semester:

2A / 2B

Hours per week:

2

Other hours:

Assessment:

Written report

Assessment period:

2B / August

(see academic calendar)

Prerequisites (course codes):

wb3420-03

Follow up (course codes):

Detailed description of topics:

Application of design methodology to a specific case of conceptual design (functional analysis, morphological matrix, multicriteria analysis). Calculations of mechanical power for typical motion (cycle with start, stationary motion, stop), like in driving, hoisting, rolling and belt transport. Selection of driving motor and transmission. Soft start and controlled braking. Overview of typical equipment like cranes, stackers. Working cycle, working area, displacement functions (drive, slew, extend). Cable loop systems: examples and typical aspects like mechanical efficiency, wear and safety. Crane components like grabs and spreaders: typical aspects like open/close motions, force analysis, position accuracy. Application of kinematics and dynamics in transport equipment: transfer of non-uniform motion, degree of freedom, instantaneous center of rotation, kinematic transfer functions, transfer quality (pressure angle), force analysis using virtual work principle. Timed motion with start-stop behaviour. Static balancing regarding support forces and driving force. Dynamic effects like slip and rest vibration after a stop or a collision. Demonstration of tools for motion and force analysis. Dimensioning of the whole structure using standards (load combination, group factor). Machine directives (CE-marking) and tender documents. Dimensioning of typical large stuctures such as lattices. Examples of  welded connections. Demonstration of analysis tools for stress, deformation, fatigue.

Course material:

• written papers, to be collected in a map (under construction), available on blackboard

References from literature:

• Verschoof, J.: Cranes

Remarks assessment, entry requirements, etc.:

To participate in the project, that is the basis for the assessment, it is strongly recommended to be present during the lecture hours.

Learninggoals:

The student must be able to:

1. describe methods to arrive at a conceptual design for transportation equipment, composed from basic mechanical engineering elements

2. apply a design approach with the use of general design codes and based on analysis and breakdown of functionality into standard functions and generally applied designs for such functions (drives, supports, structural elements)

3. analyse the kinematics and statics involved in the concept of equipment and to optimize a design

4. analyse the design influence from dynamics and vibrations and to describe the potential of design and calculation tools to quantfy the influence (tools such as ADAMS, ANSYS, etc.)

5. describe the calculation methods to calculate/design structural components and mechanisms. Such methods are presented based on standards and engineering codes (NEN 2017 .. 2020, EurNorm 13001, etc.)

6. recognise the various design details, influencing strength, fatigue, life-cycle costs of transportation equipment (weld details, structural connections, drive concepts, etc.)

7. illustrate the complexity of drive lines in transportation equipment (travelling, hoisting, slewing, rolling, etc.) and to calculate a drive line

8. apply the preceding objectives (course material) into a real design/calculation case, resulting in a well documented report, calculation method and iterative optimisation path

Computer use:

Laboratory project(s):

Design content:

Participants work in groups to make a (conceptual) design of a case, that will be introduced in the first lecture hour. The teachers use the case as much as possible to make the theory clear. At the end of the course the groups present and defend their concept in the lecture room. A report containing design calculations and offering tender documents has to be submitted as well.

Percentage of design:  100%