Interactive Powertrain: new LASME teaching tool
How to use the new page to follow engine, gearbox, differential and wheel speeds in straight-line motion and in a turn.
Read articleUse the table of contents to review basic concepts, compare transmission types, or follow a complete reading path before solving mechanism exercises.
Planetary Gear Design in Engrenarium
How to use the new module to synthesize simple and compound planetary gear sets from assembly relations and constraints.
Read articleFerguson's mechanical paradox: assembly in Engrenarium
History, assembly and operation of a mechanism in which three gears exhibit apparently contradictory movements.
Read articleAllison 1000 transmission: assembly in Engrenarium
Assembly of three consecutive planetary gear sets in Engrenarium, with tooth counts, constraints, and six gear ratios.
Read articleRavigneaux transmission: four gears and reverse
Reading a Ravigneaux set with two sun gears, long and short planet gears, overdrive and reverse gear.
Read articleFord Model T Transmission: Two Speeds and Reverse
Model T planetary transmission reading with first gear, second gear and reverse gear.
Read articleHow to assemble a compound planetary gear set in Engrenarium
Example of two stages with coupling between carriers and planets, without sun gear in the second stage.
Read articleHow to assemble a CVT transmission in Engrenarium
Assembly of a didactic CVT transmission mechanism with sun gear, ring gear, planets and output via carrier.
Read articleGears: functions, profile and nomenclature
Introduction to the role of gears, the relationship between teeth, pitch diameter, module and involute profile.
Read articleSimple and compound gear trains
How to read gear ratios, idler gears, compound pairs, direction of rotation and train value.
Read articleManual transmission as a gear train
A didactic reading of gears, selected pairs, direct gear, reduction and reverse in manual transmissions.
Read articleBevel, helical, and worm gears
Comparison between gear families when the axes are no longer parallel or when high reduction is sought.
Read articlePlanetary gears: general case and train value
General formulation for epicyclic gear trains, relative speeds, carrier and interpretation of train value.
Read articleApplications of planetary gears
Why planetary gears appear in screwdrivers, automatic transmissions, mechanical CVTs and compact sets.
Read articleCompound planetary gear sets and differentials
How couplings, carriers and degrees of freedom change the analysis of compound planetary gear sets and automotive differentials.
Read articleCams: fundamentals of synthesis and analysis
Introductory text on cams, laws of motion, pressure angle and didactic paper on motion synthesis.
Read articleCams: nomenclature, followers and design workflow
Essential terms, followers types, critical positions, and initial organization of a cam cycle.
Read articleDisplacement curves for cam design
How to specify SVAJ curves for dwell, constant velocity, cycloidal, harmonic and polynomial motion.
Read articleAnalytical design of cams
Profile coordinates, base radius, pressure angle, curvature and cusp risk in cam design.
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