The device shown is used to mix soils in order to provide in-situ stabilization. If the mixer is connected to an A-36 st eel tubular shaft that has an inner diameter of 3 in. and an outer diameter of 4.5 in., determine the angle of twist of the shaft at A relative to C if each mixing blade is subjected to the torques shown.
Graphics: turn ideas into reality How do engineers solve a complex problem that no one else has solved 1 Generate ideas 2 Communicate ideas 3 Refine ideas 4 Document answers 5 Test 6 Repeat until problem is solved Graphics is the language of engineers Capture ideas Refine ideas Communicate ideas Document results Graphics Sketch Draw Simulation Computer aided design Drawing vs Sketching Drawing Uses drafting tools or a computer program Slower and detailed Includes everything needed for another person to fully define an object Sketching Usually freehand Quick, aids thinking and idea formation Includes sufficient detail to convey concept to another person Why sketch Fleeting idea Explore and solidify design concepts Documentation for future reference, liability, ownership Communicate your ideas to others Formulate a problem Today's work environment Computer aided drawing AutoCAD Computer aided manufacturing 3d printing Analysis capability integrated into CAD Virtual reality Rapid prototyping Many engineering design and production drawings are now computer models Increased automation Lower skills Broader responsibility Increased integration of functions Broader responsibility Design Analysis Drafting Prototyping etc. Drawings and sketches S