Introduction to Mechanism

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Introduction to Mechanism NAME: Hardik Patel, Tirth Patel SUBJECT : KOM BRANCH : MECHANICAL (M-2) DEGREE ENROLLMENT NO: 141173119013, 141173119016 COLLAGE: NEOTECH INSTITUTE TECHNOLOGY VADODARA Guided By:- Ankit Joshi

Mechanism Mechanism consists of linkages and joints. Mechanism is an assembly of rigid elements (linkages) arranged and connected to form a closed kinematic chain with one link fixed in order to transmit motion in a predetermined fashion. Mechanism consists of linkages and joints. Machine is an arrangement of parts for doing work, and applying power . Structure is an assembly of parts for supporting loads.

Example of Mechanism Can crusher Simple press Rear-window wiper

Example of Mechanisms Moves packages from an assembly bench to a conveyor Microwave carrier to assist people on wheelchair Lift platform

Example of Mechanisms Lift platform Front loader Device to close the top flap of boxes

Example of Mechanisms Rowing type exercise machine Conceptual design for an exercise machine Rowing type exercise machine

Mechanisms in Automotive Industry

Four-Bar Linkage

Four-Bar Linkage Categories

Four-Bar Linkage Categories

4-Bar mechanisms

4-Bar mechanisms S + l > p + q 4 double rocker mechanisms

The Slider-Crank Mechanism

Slider-Crank Mechanism - Inversion

Mechanism Categories Function Generation Mechanisms A function generator is a linkage in which the relative motion between links connected to the ground is of interest. A four-bar hand actuated wheelchair brake mechanism

Mechanism Categories Function Generation Mechanisms A four-bar drive linkage for a lawn sprinkler

Mechanism Categories Motion Generation Mechanisms Four-bar automobile hood linkage design

Mechanism Categories Path Generation Mechanisms In path generation, we are concerned only with the path of a tracer point and not with the motion (rotation) of the coupler link. Crane – straight line motion

Lower Pairs (1 DOF)

Higher Pairs (2 DOF)

Motion Generation Mechanisms Moving a storage bin from an accessible position to a stored position Rotating a monitor into a storage position

Geneva Mechanism

Linear Geneva Mechanism

Type of Motion and Mechanisms Rotation to Translation