Andy with sewn hat

Andy Ruina

I have a robotics and biomechanics lab. I teach basic mechanics and math classes. Recently, I study coordination, mostly legged locomotion. I like classical rigid-object dynamics especially contact (collisions, friction, non-holonomic constraints). I used to work mostly on friction and sliding instability. I have also worked on bicycles, solid mechanics and fracture. I usually prefer simple and ideal models. My degrees are from Engineering at Brown (ScB. 76, ScM. 78, Ph.D. 81).

Mechanical Engineering
(formerly in TAM)

566 Upson Hall
Cornell University
Ithaca, New York 14853
+1 607 327-0013

Research and Lab

Robots, Locomotion papers, Bikes, Friction & fracture, Collisions,  MiscellaneousInformation for students.

List of papers, according to google. Preprints to many available from the links above.


Some things I've worked on

Text Book:  Statics and Dynamics
Dynamic Walking 2017, the Ă…land islands, June 2017.
Animal Coordination seminar:- 1st yr sched.
TAM Seminars: Planning for 02-03 season.
RIBs: Recycle Ithaca's Bicycles: helps people fix and earn bicycles.


Personal information (Addresses, contacts, India, etc.)
Facebook page (no Facebook account needed) 
Where is Andy right now? (GPS location on map)
Finland information

Office hrs:  Dec 4-5 2018:  Tues 5:15-7:30, Wed 1-3:30, Thurston 102.

Courses (most recent at top)

ME 4730/5730 Dynamics and Vibrations (Fall 2018)
ENGRG 1112 Practical computing with Matlab (Spr. 2018)
MAE 4710/5710
Applied Dynamics: Robots,
                        machines and biomechanics  (Sp '19?)
Robotic Bike team (fall 2018)
Robotic Sailboat team (fall 2018)

Walking House (w/ Architecture) 2017-2018
  Freshman advising 2017-2018

ME 6700
: Advanced Dynamics (Spring 2016)

ME 5070: Flight Dynamics (Spring 2015)
TAM 7960: Legged locomotion of robots and animals (fall 2014, not).
ME 2030: Sophomore dynamics.
TAM 2020: Statics and Mechanics of Materials
Engr 1170: Intro to Mechanical Engineering.
MATH 2940: Sophomore linear algebra
TAM 570: Introduction to analytical mechanics.
MATH 1910: First semester calculus (Fall 2005)
TAM 663: Intro to Solid Mechanics (Notes from about 1990)
ME 3250: A junior mechanical design analysis.
TAM 674: Applied Multibody Dynamics (Arend Schwab).
MATH 2930: A sophomore math class (mostly ODEs).
Moonbuggy: A student team built a pedaled rough-terrain vehicle (Moonbuggy mirror site). (2002 Moonbuggy Site)

Course Related 

MATH 293 & 294 problems: Hundreds of prelim problems from MATH 293 and MATH 294.

Lab bureaucracy (not publicly accessible).