Basic concepts and definitions ⑧Mechanism(机构)：a kinematic chain in which at lease one link has been"grounded",or attached,to the frame of reference(which itself may be in motion);the links in the kinematic chain move upon each other with definite relative motion. ©Kinematic Chain(运动链)：an assembly of links and joints.(Interconnected in a way to provide a controlled output motion in response to a supplied input motion.)? ME357 Design Manufacturing ll Basic concepts and definitions he Transmission sys Control system ower system ←用习 Executive Augxiliary system 6
6 ME357 Design & Manufacturing II Mechanism（机构）: a kinematic chain in which at lease one link has been “grounded”, or attached, to the frame of reference(which itself may be in motion); the links in the kinematic chain move upon each other with definite relative motion. Kinematic Chain（运动链）: an assembly of links and joints. (Interconnected in a way to provide a controlled output motion in response to a supplied input motion.) ? Basic concepts and definitions Basic concepts and definitions Power system Transmission system Control system Executive system Augxiliary system
Basic concepts and definitions 1 what is the relationship 8见 between the piston and the crank? 2 What are the synchronizations and control requirements and how will they be met? 540 180 3 how much heat will be generated and how will the engine be cooled? 4 what materials and manufacturing methods will 360 be used? 5 what will be the cost,both for initial purchase and continued operation and maintenances? Basic concepts and definitions ·Intake stroke Compression stroke ·Combustion stroke ·Exhaust stroke ①Exha intake port K Spark Plug Echaust Por Engine Block G oll Pan Rod Bearing Oll Sump Crankshaft ①INTAKE ②C0 MPRESSION COMBUSTION G EXHAUST Spark ●Top Dead Conter 7
7 Basic concepts and definitions 1 what is the relationship between the piston and the crank? 2 What are the synchronizations and control requirements and how will they be met? 3 how much heat will be generated and how will the engine be cooled? 4 what materials and manufacturing methods will be used? 5 what will be the cost, both for initial purchase and continued operation and maintenances? Basic concepts and definitions
Basic concepts and definitions SIIHs: Basic concepts and definitions 11 10 8 10 SINNd: 8
8 Basic concepts and definitions 8 5 6 7 8 9 10 12 11 12 10 P 1 4 2 3 1 2 3 Basic concepts and definitions
司 Kinematic pairs 守导中 GURE 2-3 ME357 Design Manufacturing Il 9
9 ME357 Design & Manufacturing II Kinematic pairs