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1、化工设备机械基础课程教学大纲Chemical equipment, machinery foundation course syllabus.Txt mens commitment, like 80 year old old ladys teeth, very few really. When you smoke, only three kinds of people will be happy, doctor, your enemy and cigarette seller. This article is contributed by cdled006DOC documents may e
2、xperience poor browsing on the WAP side. It is recommended that you first select TXT, or download the source file to the local view.Chemical equipment, machinery foundation, chemical equipment, mechanical foundation course, teaching program, chemical equipment, mechanical foundationCourse Name: chem
3、ical equipment, mechanical foundation course type: (specialized basic courses) total hours: 45 Credits: 2.5 lectures, class hours: 45Applicable subjects: biological engineering and chemical engineering: courses of descriptive geometry and mechanical drawingFirst, the nature, purpose and tasks of the
4、 courseThis course is a course of mechanical engineering for bioengineering, chemical engineering and so on. It belongs to the technical basic course. The task is to enable students to acquire the necessary knowledge of the design and use of the necessary chemical equipment. The main contents of thi
5、s course: basic knowledge of engineering mechanics; basic knowledge of materials commonly used in chemical equipment; chemical containers (especially thin container) mechanical knowledge and equipment; basic knowledge of mechanical transmission; design principle of internal and external pressure ves
6、sel, the general method of middle and low pressure container design, parts selection bearing, flange, manhole and standard parts. At the same time in the teaching activities, the gradual deepening of the engineering consciousness of students, try to shorten between engineering application and classr
7、oom learning gap; clear understanding of their professional status and function in the whole chemical device, thus enhancing the desire and ability to work with the professional. The multimedia teaching mode is adopted to enlarge the students thinking space and improve their learning effect and crea
8、tive ability.Two, the basic requirements of teachingThrough the course, students are required to master the basic knowledge of mechanical engineering, material properties and the characteristics of all kinds of materials; Institute of chemical equipment and material selection method; stress calculat
9、ion and strength design of common cylinder internal pressure vessel head master, understand the basic requirements and methods of container machine design, the strength design and the cylinder and pressure vessel components to understand, understand the equipment structure and classification, unders
10、tand the structure and function of attachment.Three, teaching content and requirementsIntroduction to the content of the course: the main content, purpose, requirements and nature of the course. The nature of the concept and foundation of static force force in the first chapter, the two principle of
11、 force balance, and equilibrium principle, force transmissibility, force parallelogram law and the action and reaction law, for example. Constraint form: flexible constraint, smooth contact surface constraint, fixed hinge support constraint, active hinge support constraint, fixed end restraint and r
12、estraint force determination. Illustrate. The second chapter introduces plane intersection force system, plane intersection force system, force system balance and its solution method. Illustrate. The theorem of translation concept, moment and couple force third general coplanar force system to solve
13、 the problem; couple system master equilibrium condition.Grasp the translation theorem of force line and plane general force system to grasp the basic point: grasp the basic method of plane intersection force system synthesis, master two force balance principle, and add and subtract balance force sy
14、stem principle and force transmissibility. Understand the different constraint forms and master the methods of determining the constraint forces. Teaching requirementsOneBalance couple system, a general coplanar force system of coplanar force system, for example. The fourth chapter axial tensile bar
15、s and compression mechanical tasks and research object; Determination of axial tension and compression force and stress; rod tension and compression strength and deformation conditions; application of Hookes law to solve the axial and lateral deformation; tensile and compressive force and stress dis
16、tribution. Mechanical properties and determination of materials in tension and compression. The fifth chapter, shear and torsional shear deformation characteristics, shear and extrusion strength conditions. Torsion force and torsion moment, calculation method of external torque of transmission shaft
17、. Internal force during torsion: Determination of torque magnitude and direction and torque diagram. Calculation and application of pure shear and shear Hookes law. Application of strength conditions and stiffness conditions for torsion of circular shafts; examples are given. Method for calculating
18、internal force bending when the force of the drawing and use section chapter sixth plane bending beam bearing type, bearing different; calculation formula and common cross-section bending stress (rectangular plane, solid round, hollow section) method for solving the bending moment of inertia and sec
19、tion modulus. The concept of deflection and rotation of beam, the approximate differential equation of deflection curve of beam is applied, and the deformation of beam is calculated by superposition method. Check the stiffness condition. The main ways to increase the flexural strength of beams and t
20、he main ways to improve the flexural rigidity of beams. The seventh chapter is the complex stress state and strength theory, the maximum shear force of three point stress state, the generalized Hookes law and the strength theory. Strength calculation of combined deformation of bending, tension and c
21、ompression with third strength theory. Examples are given to illustrate the calculation of composite deformation: applying the strength theory to the combined deformation of bending and tension, the combined deformation of bending and compression, and the combined deformation of torsion and bending.
22、Solving the general plane force problem by applying equilibrium conditions. Understand the basic form of component deformation; grasp the stress and deformation characteristics of the component under tension or compression; grasp the internal force and its stress by cross section method, and check t
23、he strength. Grasp the application of Hookes law to solve the deformation of components. Master the mechanical properties of common materials and understand the mechanical properties of other metal materials when they are stretched. Understand the influence of temperature and alternating stress on t
24、he mechanical properties and stress of materials.To understand the shear and torsional forces and deformation characteristics of members, the section method is adopted to determine the internal forces, the moment of inertia and the modulus of torsion, the calculation of shear stress and the law of s
25、tress distribution in torsion.Grasp the direction of the shearing force and the bending moment correctly, and draw the shear diagram and the bending moment diagram. Master the calculation of moment of inertia and section modulus beam bending method, the cross section of the commonly used internal fo
26、rce. Application of shear and moment equations to the bending of beams under load.Understanding the state of stress type,Grasp the maximum shear force and generalized Hookes law at three points under the stress state. Familiar with stress diagram, principal stress and maximum shear stress, strength
27、theory. Understand the main form of combined deformation, and grasp the strength calculation of several kinds of composite deformation.TwoThe eighth chapter is the type and important technical parameters of belt drive. Belt driving force; the cause of the loss of elastic slip of belt. Calculation of
28、 transmission ratio. The failure modes and consequences of belt transmission. Master belt drive and design guidelines and methods. The ninth chapter, gear transmission gear drive basic parameter, force condition. The basic laws of gear drive and the involute tooth profile satisfy the basic laws of m
29、eshing; and the Meshing Conditions and transmission ratio of involute standard gears are calculated. Gear material manufacturing, gear force analysis, failure mode. The tenth chapter is about the main parameters, geometry size and force analysis of worm drive worm drive. Calculation of sliding speed
30、, efficiency, strength and transmission ratio of worm drive. Structure of worm and worm wheel. The eleventh chapter: gear train and reducer gear train: fixed axis gear train, epicyclic gear train, fixed axis gear train ratio calculation, axis gear transmission ratio calculation, type and characteris
31、tics of ordinary reducer. The twelfth chapter: chemical equipment, materials, chemical equipment, material types, mechanical properties, numbers, uses. Heat treatment method of steel and its influence on mechanical properties after treatment. Alloy steel: the role of alloying elements in alloy steel
32、s, the classification and designation of alloy steels, and the properties of different varieties. Properties and applications of commonly used non ferrous metal materials. The thirteenth chapter is about the design of inner pressure vessel, the structure and classification of vessel, the standard of
33、 container parts and the standard introduction of pressure vessel. The theoretical basis for the design of thin walled vessels and the application of basic equations. By force analysis and strength calculating of shell gas pressure: 1. cylindrical shell 2. spherical shell calculation 4. oval shell d
34、esign 3. conical shell thickness design parameters, design the container; for example. Understand container structure and type, grasp the basic requirements of container mechanical design. Grasp the formula for calculating vessel wall thickness according to strength condition and the influence of ot
35、her factors on thickness calculation. Understand the structure of different types of heads. Understand the classification, mechanical performance and chemical composition of carbon steel and cast iron, non-ferrous metals and non-metallic materials. Mastering the principles of selecting materials for
36、 chemical equipment, the brand, performance and application of several commonly used chemical equipment, materials, and mastering the methods and functions of heat treatment of commonly used metal materials. Know the function and type of gear train, master the ratio of fixed axis gear train and calc
37、ulate the transmission ratio of moving axle and gear train. Understand the main parameters of worm drive, the types of worm, worm gear and worm gear, and calculate the ratio of worm gear. Understand the characteristics of gear drive, the applicable situation and the significance of each part of the
38、spur gear. Master the correct gear condition and failure form of a pair of involute gears.Understand the important technical parameters of belt drive and belt drive forceThe causes, consequences, and consequences of the elastic slip of the case. Master the calculation of transmission ratio.ThreeThe
39、hemispherical head, hemispherical head, dished head, conical head and flat head are calculated.The fourteenth chapter introduces the general chemical equipment parts general parts, chemical equipment bearing and sealing principle is introduced: flange connection flange structure; classification; inf
40、luence factors of flange seal; flanges and selection; container support: support vessels; bearing vertical vessels. Opening and attachment of container: opening and strengthening of container, hand hole and manhole, mirror and liquid level gauge, understanding of flange structure, type, sealing prin
41、ciple and flange standard. Understanding of components on pressure vessels.Four, the focus and difficulty of the curriculumThe first chapter focuses on the basis of statics: the method of determining the binding force and the binding force. Must be proficient in plotting the force of the map. Diffic
42、ulties: stress analysis and the method of force diagram. The second chapter focuses on the plane intersection force system: Mastering the synthetic method and equilibrium condition of plane intersection force system. The third chapter focuses on a general coplanar force system: synthesis and equilib
43、rium conditions of difficult plane couples, a general coplanar force system: to solve the problem of flexible application of general plane equilibrium conditions. The fourth chapter is the axial tension and compression of the straight bar. The emphasis is on the mechanical properties of the material
44、, the reasonable selection of the material and the difficulty of the equipment. The strength and deformation of the rod under tension or compression shall be calculated. The fifth chapter focuses on shear and torsion, the calculation of torsion moment, the determination of torque direction, the form
45、ulation of torque diagram and the formula of shear Hookes law, the strength condition and rigidity condition of torsion of round shaft. Difficulties: Calculation of modulus of inertia moment and torsion section; design of shaft diameter based on stiffness. The sixth chapter focuses on plane bending:
46、 the basic formula of bending deformation and the calculation of modulus of bending section. Deflection equation of beam and deformation calculation of beam. The strength condition of bending normal stress is applied to solve the engineering design problem. Difficulty: the basic formula of bending d
47、eformation and the calculation of modulus of bending section. The seventh chapter focuses on the complex stress state and strength theory: third strength theory solves strength calculation under complex stress condition. Difficulties: the combined deformation of bending and tension and compression,
48、and the strength calculation of combined deformation of torsion and bending. Eighth chapter belt drive key: belt drive design rule and prevents to produce the invalidation measure. Difficulties: stress analysis and stress calculation of belt drive.FourThe ninth chapter focuses on gear drive: master
49、gear drive and calculation. Difficulties: force analysis of gear drive. The tenth chapter focuses on the worm drive: the worm gear drive ratio calculation difficulties: worm gear transmission force analysis. The eleventh chapter: gear train and reducer: grasp the calculation of fixed axis gear train and moving axle gear train. Difficulty: moving axle system. The twelfth chapter focuses on the material of the chemical equipment, the mechanical properties of the comm