Ⅰ. General Information
Course Code | MEE11400T | ||||||||
Course Information | Academic Discipline | Engineering | Knowledge Domain | Graphics | |||||
Total Class Hours | 48 | Credits | 3 | Lecture Hours | 48 | Laboratory Hours | 0 | Computer Lab Hours | 0 |
Course Title (in Chinese) | Engineering drawing | ||||||||
Course Title (in English) | Engineering Graphics | ||||||||
Applicable Majors | Environmental engineering, biological engineering, medical engineering, designing | ||||||||
Semester Available | 1st, 2nd, 3rd | ||||||||
Prerequisites (Course Title) | College computer science (CSE10103C) | ||||||||
Corequisites (Course Title) | Further Mathematics A(I)(MAT13904T） | ||||||||
Brief Course Description | This course mainly focuses on the representation of 3D geometric elements and objects on a 2D plane using projection method, and the basic theories and methods of illustrating spatial geometric problems on 2D plane. It aims to make students master plotting and reading methods of mechanical detail drawings and assembly drawings and related national standards. | ||||||||
Ⅱ.Curriculum Nature and Course Objectives
II.1 Nature of the course
Engineering Drawing is a compulsory elementary course for all engineering majors in colleges and universities. Through the master the basic knowledge of engineering drawing related, basic theory and basic skills, training students to have this ability, the ability of reading, the space imagination and thinking ability and practical skills, of drawing and using the method of engineering graphics ability to solve practical engineering problems, further study specialized core curriculum lays the foundation for the students.
II.2 Course Objectives
The course requires students to:
G1: Be able to apply basic knowledge of engineering drawing, drawing methods of views and relevant regulations, propose reasonable design schemes for engineering problems according to design conditions and specific requirements, and complete the design;
G2: Able to select and use drawing software to design and analyze complex engineering problems in the engineering field by applying relevant basic knowledge of engineering graphics, drawing methods of views and relevant regulations;
G3 can use basic knowledge of engineering graphics, drawing methods, and related regulations to accurately express their own opinions on professional issues in oral, written, and graphical forms, and understand the differences in communication with peers in the industry and the public.
Ⅲ. The Corresponding Relationship between Course Objectives and Graduation Requirements
Table 1: Course Objectives and Graduation Requirements
Graduation Requirements | Index point | Course objectives | How to achieve | Evaluation based on | Degree of support（H、M、L） |
3 design/develop solutions | 3.2 Be able to design products that meet specific requirements according to engineering product design methods and techniques | G1 | Lectures, discussions, and after-school assignments | Class performance, quizzes, problem sets, exams | H |
5 Problem analysis | 5.2 Be able to use engineering drawing software to design and analyze products. | G2 | Class performance, quizzes, problem sets, exams | M | |
10 Communication | 10.1 Be able to accurately express your views on professional issues orally, in writing, charts, etc., respond to queries, understand the differences in communication with peers in the industry and the public | G3 | Class performance, quizzes, problem sets, exams | M |
H---High M---Medium L---Low
Degree of support：Electives should have at least one H or M. Compulsory courses and core courses should have at least one H.
Ⅳ. Teaching Contents and Requirements for the Lecturing Part
IV. 1 Introduction and Basic Knowledge of Drawing (2 credit hours)
IV.1.1 Teaching Objectives (G1)
Understand the research object of this course, understand the nature of the course and learning methods, master the basic knowledge of mechanical drawing and the concept of orthographic projection. To give students a comprehensive understanding of the course.
IV.1.2 The teaching content
(1) Introduction
The role of courses in majors; The content and learning method of the course; The cultivation of students' ability.
(2) Basic knowledge of drawing
Basic provisions of national standard "Mechanical Drawing"; Drawing tools and their use; General steps of drawing; The general method of freehand drawing; The basics of projection.
(3) Ideological and political content
This paper introduces the development of Chinese cartography, arouses students' patriotic thoughts and sets up their faith in national cultural inheritance. Combined with the latest development of the discipline and the great achievements of China's manufacturing industry, enhance students' confidence in the road and system of socialism with Chinese characteristics, and guide students to set up lofty ideals and contribute to the country's sense of responsibility and mission; Emphasize the scientific, normative and solemn nature of relevant standards formulated by the state, and enhance students' awareness of abiding by laws; It emphasizes the accuracy of drawing and the importance of details, lists engineering cases, and strengthens students' rigorous and serious attitude towards study and work.
IV.1.3 Teaching requirements
Understand the role of the course in the major and the nature and requirements of the course, and clarify relevant provisions; Master the basic regulations of drawing, proportion, font and line type in national standards; Master the use of drawing tools and instruments; Master freehand drawing skills; Understand the basic knowledge of projection method, master the concept of orthographic projection.
IV.2 Projection of Point, Line and Plane (2 credit hours)
IV.2.1 Teaching Objectives (G1, G2, G3, G4)
Master the projection law and projection characteristics of point, line and plane in the three-projection plane system. To equip students with the ability to solve practical engineering problems by drawing methods.
IV.2.2 Teaching content
(1) Projection of point
The concept of three views; Formation of three views; The projection law of three views; Projection of points; The relative position and double shadow between two points.
(2) Projection of a line
Projection characteristics of all kinds of straight lines; Projection law of a line in a special position; Projection of points on a line; The relative position of two straight lines; The method of finding the intersection of two lines.
(3) The projection of the plane
Plane representation method; Projection characteristics of various planes; The projection law of special position plane; Points and lines on a plane; Parallel problem; Intersection problem; Vertical problem; The method and visibility judgment of the intersection of straight line and plane; The method and visibility judgment of plane to plane intersection.
(4) Ideological and political content
Analyze the position relation and subordinate relation of point, straight line and plane, introduce the subordinate relation between individual and country, as well as the thought of understanding and analyzing the problem in many aspects and angles; Introduce the cognitive laws of things -- from simple to complex, teach the projection characteristics and laws of points, lines, planes and solids; Students are strictly required to draw projection maps according to projection rules, and develop rigorous and serious attitude towards study and work.
IV.2.3 Teaching Requirements
Master the projection law of points in the three-projection plane system; Can correctly judge the position of two points; Master the concept of double shadow point and the judgment of projection visibility. Master the projection characteristics of various position lines; Master the projection characteristics and judgment methods of parallel, intersecting and crossing lines. Master the projection characteristics of various position planes; Master the projection characteristics and judgment methods of line and plane, plane and plane parallel; Master the basic method of finding the intersection point of line and plane and the intersection line of plane by accumulative method and auxiliary plane method.
4.3 Three-dimensional View (6 credit hours)
4.3.1 Teaching Objectives (G1, G2, G3, G4)
Master the drawing method of the three views of the plane and the revolving body, the drawing method of the intersecting line of the plane and the revolving body and the method of finding the intersecting line of the two solids, can correctly analyze and solve the intersecting line of the multi-body intersecting. Make the students have the ability of drawing and reading three-dimensional view.
4.3.2 Teaching content
(1) The projection of plane solid
Drawing method of three views of plane basic body; Projection of points, lines and planes on a plane solid; The cutting of a plane solid.
(2) Projection of the revolving body
Revolving body (cylinder, cone, ball, ring) three views of the drawing method; Taking point and line on the surface of rotary body; Cutting of rotary body; Intersecting of rotating bodies; Special intersecting; The intersecting line is obtained by surface point method. Auxiliary plane method to calculate intersecting line; Multiple bodies intersecting.
(3) Ideological and political content
Analyze the simplicity and clearness of the projection of basic geometry, as well as the rationality of its placement, and guide students to establish a correct outlook on life and correct their position in society; According to the functional requirements of products, guide students to reasonably design creative parts and products to promote the industrial upgrading and development of the country.
4.3.3 Teaching requirements
Master the drawing method of three views of plane solid and revolving body (cylinder, cone, sphere, ring); Master the drawing method of the intersecting line after cutting plane solid and turning body; Master the basic method of finding the intersecting line of two turning bodies by using the surface point method and the auxiliary plane method, master the special intersecting condition, the nature of intersecting line and the method of finding the intersecting line; Can correctly analyze and solve the intersecting line of multi-body intersecting.
4.4 View and dimensioning of the assembly (10 credit hours)
4.4.1 Teaching Objectives (G1, G2, G3, G4)
Master the drawing method and reading method of assembly view, master the basic requirements of dimensioning and correct dimensioning method of assembly size. Enable students to have the ability of correct expression, reading combination, and size marking.
4.4.2 Teaching content
(1) combination of painting
The way in which a combination is composed; Surface transition relations between bodies; Body analysis; Combination drawing; Freehand drawing.
(2) Combination of reading methods
Several problems to be paid attention to when combining reading pictures; The method and steps of combining reading pictures; Body analysis reading combination; Line-plane analysis method reads the assembly view.
(3) Dimensioning of the assembly
Basic requirements and relevant regulations for dimensioning; Dimension marking of basic body; Size classification of assembly; The basic method of dimensioning combination; Common structure annotation method; Mark dimensions with your bare hands.
(4) Configuration training
Concept of configuration; Combination configuration design.
(5) Ideological and political content
Analyze the relationship between the whole of the body and each constituent body, introduce the subordinate relationship between the individual and the whole, the individual and the country, promote the patriotic consciousness of students; Analysis of body analysis and line - plane analysis, the introduction of scientific methodology.
4.4.3 Teaching requirements
Master the basic method of drawing the body view with body analysis method; Master the basic method of reading the assembly view by using body analysis method and line and surface analysis method; Understand the relevant national standards of dimension marking, master the concept of shape size, positioning size and overall size, master the basic method of combination size marking; Configuration training - combination configuration design, freehand drawing and dimensioning.
4.5 Axonometric projection (1 credit hour)
4.5.1 Teaching Objectives (G1, G2, G3, G4)
Understand the concept of axonometric drawing, master the drawing method of positive isoaxonometric drawing and oblique biaxonometric drawing, so that students have the ability to draw axonometric drawing freehand.
4.5.2 Teaching Content
(1) The basic concept of axonometric projection; Positive isoaxonometric map; Oblique biaxial mapping; Freehand axonometric drawing.
(2) the ideological content: explain the characteristics of the axonometric drawing and construction method, points out the advantages of axonometric drawing (graphics intuitive and easy to imagine) and weaknesses (poor measurement and cannot reflect the form the shape and size), help students to establish a comprehensive thinking and methods of recognizing things, understand and support the national regulations and policies, things against unilateral cognition, maintain social stability.
4.5.3 Teaching requirements
Understand the concept of axial rate of change and inter-axial Angle, master the drawing method of orthoisometric axonometry and oblique axonometry; Configuration training -- combination configuration design, freehand axonometric drawing.
4.6 Common expressions of parts (8 credit hours)
4.6.1 Teaching Objectives (G1, G2, G3, G4)
Understand the concept of machine parts and the expression of machine parts, master the correct expression method, annotation and application of various views, sectional views and sectional drawings. Make the students have the ability to draw the working diagram of machine parts by using the expression method comprehensively.
4.6.2 Teaching content
(1) View
Basic view; To view; Local view; Oblique; View annotations.
(2) Sectional view
The concept of section; Labeling of sectional view; Full section view; Semi-sectional view; Partial section view; Ladder cutting; Inclined section view; Rotary cutting; Composite profile control; Special dimensioning of section view.
(3) Sectional drawing
The concept and application of map; The drawing and marking of overlapping sections; The drawing and marking of removed sections.
(4) prescriptive drawing and simplified drawing
Commonly prescribed drawing; Commonly used simplification; Partial enlargement.
(5) Comprehensive expression training
Shape analysis; Multi-group expression scheme is given. Selection of appropriate expression scheme; Draw the view of the machine; Mark dimensions.
(6) Ideological and political content
Understanding the diversity of ways to express things, perspective-taking, help students learn to understand and tolerate, correctly and reasonably express personal opinions, maintain social order; Strictly abide by the national standards in the body expression method drawing, improve students' awareness of law-abiding.
4.6.3 Teaching requirements
Master the concept, drawing method, annotation method and application of basic view, directional view, partial view and squint view; Master the concept, drawing method, labeling method and application of full section, half section and partial section, master the concept, drawing method, labeling method and application of inclined section, rotary section and stepped section, and understand the concept of compound section; The method of dimensioning section view is introduced. Master the concept, drawing method, marking method and application of overlapping section and removed section; Understand the common prescribed drawing method, simplified drawing method and local enlarged drawing method; Comprehensive expression training -- choose appropriate solutions to express objects and mark their size, and draw working drawings.
4.7 Standard parts and Common Parts (6 credit hours)
4.7.1 Teaching Objectives (G1, G2, G3, G4)
Understand the concept of standard parts and common parts, master the drawing and marking of standard parts and common parts. Make the students have the ability to express the standard parts assembly drawing correctly.
4.7.2 Teaching content
(1) the specified drawing method of the thread
The concept of thread; Structural elements of thread; The prescribed drawing of internal and external threads; Drawing and marking of local structure of thread; Connection drawing of thread; Marking of thread.
(2) Drawing method of threaded fastener connection
Threaded fasteners and their marking; Proportional drawing of bolt connection; Proportional drawing method of stud connection; Proportional representation of screw connections.
(3) The drawing of gears
The use and classification of gears; Basic parameters and dimensions of cylindrical gears; Specification of a single cylindrical gear; Specification of meshing gears; Representation of helical cylindrical gears.
(4) keys, pins, rolling bearings, springs
Key function, type, mark and lookup table; Key connection drawing; Shaft keyway drawing and size note method; Wheel hub keyway drawing and size note method; Function, type and marking of pins; Pin connection drawing; Structure, classification and code of rolling bearings; Simplified drawing of rolling bearings; The drawing of springs on an assembly drawing.
(5) Ideological and political content
Introduce the types, specifications and technical requirements of standard parts and common parts, comprehensively consider the quality and maintenance cost of products, select suitable parts, establish standardization consciousness; This paper introduces the drawing method of national standards for standard parts and common parts, emphasizes the importance of abiding by national regulations and industrial standards, and cultivates students' engineering literacy.
4.7.3 Teaching Requirements
Master the thread specification drawing, marking, marking and table lookup method; Master the marking of threaded fasteners, look-up table and the specified drawing method of connection (proportional method); Knowledge of gear; Master the specification of cylindrical gear and its meshing; Understand the drawing method of gear part drawing, can read gear part drawing; Knowledge of keys, pins, bearings and springs marking, lookup tables and their prescribed drawing.
4.8 Detail Drawing (8 credit hours)
4.1.1 Teaching Objectives (G1, G2, G3, G4)
Understand the concept and classification of parts drawing, master the view expression method, dimension marking, technical requirements and title bar of parts and other relevant knowledge and regulations. Enable students to draw and read engineering drawings of parts.
4.1.2 Teaching content
(1) Detail drawing
Part drawing overview; Classification of parts; View selection of parts and expression analysis of typical parts; Process structure of parts; Part drawing.
(2) Dimension marking of detail drawing
Requirements for dimensioning part drawings; Size datum; Size classification; The rationality of dimension marking of part drawing; Dimensioning of common structures on parts.
(3) Technical requirements
The concept of interchangeability and fit; Concepts related to tolerance; Fundamental deviation; Tolerance zone code; Dimensioning tolerance; The type of coordination; Base hole/base shaft system; Concept of surface structure requirements; Parameters required for surface structure; Marking of surface structure requirements; Form and position tolerance.
(4) Read the detail drawing
Requirements and methods for reading part drawings; Step of reading part drawing; Read an example part drawing.
(5) Detail mapping
Parts mapping method; Use of surveying and mapping tools; Parts mapping steps; Parts measurement exercise (a) -- with appropriate program expression and mapping of an axis parts, drawing freehand map; Parts mapping exercise (two) - mapping a full set of piston pump parts sketch.
(6) Ideological and political content
Pay attention to the drawing process and effect, promote the craftsman spirit; Introduce the importance of drawing, introduce the harm of leaking drawings to enterprises, enhance the sense of confidentiality; Emphasize the importance of standard drawing and cultivate law-abiding consciousness; Focus on drawing details and drawing requirements, highlighting the spirit of artisans.
4.1.3 Teaching Requirements
Understand the function, content and drawing steps of part drawing; Understand the process structure of parts, understand the basic knowledge of tolerance and fit, surface structure requirements; Master the expression method of typical parts and dimensioning method of common structure, draw part drawing correctly; Master the method of reading part drawing; Understand the method of part mapping and complete part mapping exercises.
4.9 Assembly drawing (5 credit hours)
4.2.1 Teaching Objectives (G1, G2, G3, G4)
Understand the function of assembly drawing and drawing and reading drawing methods and steps, be able to draw assembly drawing from parts drawing, and draw parts drawing from assembly drawing. To equip students with the ability of mechanical engineering design using engineering drawing.
4.2.2 Teaching content
(1) Assembly drawing (2 credit hours)
Assembly drawing overview; The function and content of assembly drawing; Basic requirements, special drawing and simplified drawing of assembly drawings; The expression method of assembly drawing; Assemble assembly drawing from part drawing; Assembly drawing exercise (1) Hand pressure valve assembly drawing, exercise (2) plunger pump assembly drawing, exercise (3) reducer assembly drawing.
(2) Annotation and title bar of assembly drawing (1 credit hour)
Dimensioning of assembly drawing; Technical requirements for assembly drawings; Part number in assembly drawing; Title bar and detail list of assembly drawings.
(3) Reading assembly drawing (1 credit hour)
Requirements for reading assembly drawings; Methods and steps for reading assembly drawings; Important points for reading assembly drawings.
(4) Part drawing from assembly drawing (1 credit hour)
Step of drawing parts from assembly drawing; Peruse the assembly drawing to separate the disassembled parts from components; Draw the separated parts; Add dimension mark and technical requirement to complete part drawing; (1) Read the assembly drawing of the flat pliers, and disassemble the parts drawing of the pliers; Exercise 2. Read the quick valve assembly drawing and undraw the body and bonnet parts drawing.
(5) Ideological and political content
Introduce the prescribing drawing method of the national standard of assembly drawing, emphasize the importance of abiding by the standards and norms, improve students' awareness of law-abiding; The paper introduces the influence of fitting precision on the performance of equipment, compares the performance difference of the same equipment at home and abroad, improves students' patriotic thought and sense of responsibility and ownership; Emphasize the importance of details and cultivate the spirit of craftsmen.
4.2.3 Teaching Requirements
Understand the function and content of assembly drawing; Master the drawing method of assembly drawing, view selection, dimension marking, part number and filling in details, draw assembly drawing correctly; Assembly drawing; Master assembly drawing reading method; Master the method of drawing parts from assembly drawing.
Ⅴ.Teaching Contents and Requirements for the Practical Part
The content of practical teaching has been included in the teaching content.
Ⅵ. Evaluation Standards
6.1 Assessment Method
The assessment methods of the course include process assessment and result assessment. The assessment of the final assessment of the course is a comprehensive assessment of the process assessment and result assessment, which is used as the basis for the assessment of the achievement of the course objectives.
According to the measures for evaluation and management of undergraduate courses in Beijing University of chemical technology, the proportion of process assessment is set to be 40%. The process assessment method includes attendance, quiz, stage test and homework, and result assessment method is final examination (closed book).
Table 2Course assessment method, content and proportion
Assessment method | Assessment method | Proportion | Main assessment contents |
Process assessment （40%） | Attendance | 5% | Class attendance |
Quizzes | 5% | Knowledge points of each class | |
Stage tests | 10% | Main knowledge points of each unit | |
Assignments | 20% | Completion of homework | |
Result assessment（60%） | Final exam | 60% | Main knowledge points of the course required by the outline |
Table 3 The way and content of course assessment and its supporting relationship to graduation requirement index points
Course objectives | Marks | Measurement | Proportion | content |
G1 | 30 | Performance and quizzes | 20% | Attendance, asking questions, answering questions and regular quizzes, etc. |
Assignments | 20% | The completion of homework | ||
final | 60% | Support course objective G1 teaching content | ||
G2 | 20 | Performance and quizzes | 20% | Attendance, asking questions, answering questions and regular quizzes, etc. |
Assignments | 20% | The completion of homework | ||
final | 60% | Support course objective G2 teaching content | ||
G3 | 30 | Performance and quizzes | 20% | Attendance, asking questions, answering questions and regular quizzes, etc. |
Assignments | 20% | The completion of homework | ||
final | 60% | Support course objective G3 teaching content |
6.2Grading criteria
The final grade of the course is calculated as a percentage system, in which the process assessment accounts for 40% (including course performance and daily exams account for 20%, and exercises account for 20%) and the final examination accounts for 60%. Visual examination difficulty adjustment relative fail standard, general control fail rate is less than 20%.
Table 4 Grading criteria for course performance and regular exams
Assessment index | Weigh | Excellent | Good | Medium | Pass | Fail |
Performance | 0.60 | Be present and have a positive attitude | Be present and have a relatively positive attitude | Attendance and attitude are average | Attendance and attitude are poor | absent |
quizzes | 0.40 | grasp the basic concept very well | grasp the basic concept correctly | Grasp most of the basic concept | Grasp few of the basic concept | Poor understanding of basic concept |
Table 5 Grading criteria for assignments
Assessment index | weigh | Excellent | Good | Medium | Pass | Fail |
Completeness | 0.80 | Complete, high accuracy | Complete, relatively high accuracy | Complete, average accuracy | Complete, inaccurately | Incomplete, poor accuracy |
Clarity | 0.20 | Drawing and writing are neat | Drawing and writing are recognizable | Drawing and writing are at average recognizability | Drawing and writing are at poor recognizability | Drawing and writing are unrecognizable |
Ⅶ.Textbooks and Recommended References
7.1 the teaching material
An Ying et al., Engineering Drawing (3rd edition), Chemical Industry Press, Beijing, 2019
7.2 the reference books
Tian Ling et al., Mechanical Drawing (2nd edition), Tsinghua University Press, Beijing, 2013
Syllabus reviewer: Tan Jing
2024.6.10