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工程师211静力学(4学分)

先决条件:m 251而且PH值211．

分析各种载荷在结构和机器中引起的力。

工程师211:静力学

https://catalog.cocc.edu/course-outlines/engr-211/

成绩单标题静态学分4评分方式标准信件评分总接触时数40授课时数40先决条件MTH 251和PH 211。课程描述分析不同类型的载荷在结构和机器中引起的力。课程学习成果以专业的方式呈现所有工作-沟通技巧是必不可少的。2.画一个物体的自由体图。3.计算由力和力矩组成的合成矢量。4.写出并求解静定物体的平衡方程。 5. Apply statics concepts to trusses, frames and machines. 6. Compute internal forces - draw shear and moment diagrams for a beam. 7. Solve common engineering problems using established evaluation techniques, methods and processes. Content outline Introduction to engineering and mechanics, Newtonian gravitation, scalars and vectors, components in two dimensions, components in three dimensions, dot products, cross products, forces, equilibrium, free-body diagrams, two and three dimensional force systems, two dimensional description of the moment, the moment vector, moment of a force about a line, couples, objects in equilibrium - two and three dimensional applications, two and three force members, statically indeterminate objects, trusses - method of joints, method of sections, frames and machines, distributed loads, axial force, shear force, bending moment, shear force and bending moment diagrams, relations between distributed load, shear force, and bending moment, pressure and center of pressure. Required materials The course will require a statics textbook.

工程师212:动力

https://catalog.cocc.edu/course-outlines/engr-212/

成绩单标题动态学分4评分方式标准信件评分总接触时数40授课时数40先决条件ENGR 211和MTH 252。课程描述研究运动学，牛顿运动定律，以及应用于工程系统的功-能和脉冲-动量关系。课程学习成果识别和应用运动学和动力学方程的粒子在直角坐标，柱坐标和路径坐标。2.应用功能法和脉冲动量法来描述质点的运动。3.应用平行轴定理来确定物体在特定轴上的转动惯量。4.应用相对运动的概念，使用平移和旋转参照系的2维系统。 5. Apply Newton’s equations to solve problems involving rigid bodies in plane motion. Content outline Kinematics - curvilinear motion, kinematics - relative motion, kinetics and equations of motion, kinetics - work and energy methods, kinetics - impulse and momentum, impacts, angular momentum, rigid body kinetics - relative motion and rotating axes, kinetics - force and acceleration, equations of motion - force and acceleration Required materials A required Dynamics textbook.

ENGR 213:材料强度

https://catalog.cocc.edu/course-outlines/engr-213/

成绩单标题材料学分强度4评分方式标准信分总接触时数40授课时数40先决条件ENGR 211和MTH 252。课程描述研究结构材料的性能。分析轴载构件、圆轴和梁以及包含这些构件的静不定系统中的应力和变形。课程学习成果计算截面和连接件上的平均法向应力、剪切应力和轴承应力。2.在构件设计中，将许用应力、材料强度和安全系数联系起来。3.用莫尔圆来确定主应力、最大剪应力和主轴方向。4. Calculate stresses for axial, torsion, beam bending, and combined loading on simple structural elements. 5. Draw shear and bending moment diagrams, and write beam equilibrium equations. 6. Calculate beam deflections using integration of the moment equation and the method of superposition. Content outline Define average normal, shear, and bearing stresses, and calculate for simple axially loaded components and pinned connectors. Define normal, shear, and thermal strain, and calculate for simple object deformations. Describe tension tests and stress-strain diagrams. Identify the mechanical properties of materials used in engineering mechanics analyses. Define the design concepts of strength, safety factor, and allowable stress. Use equations for stress within and deformation of axially loaded structural elements and assemblies. Use equations for stress within and deformation of circular shafts and assemblies under torsional loading. Develop equilibrium and graphical approaches to analysis of internal shear and bending moment in beams. Use equations for flexural normal stress in beams, and establish the basic methods of beam design. Develop and use equations for shear stress and shear flow in monolithic and composite beams with typical symmetric cross-sectional geometries. Generalize the concept of stress, and introduce the plane stress element. Establish equations for stress coordinate transformation, principal stresses, and maximum shear stress. Develop Mohr’s Circle for plane stress. Analyze simple combined loading problems. Establish integration and superposition methods for calculating beam deflections. Required materials A strength of materials textbook will be required.