Entries by Prof. McCarthy

Curvature Theory for Planar Point Trajectories

These notes for the Stanford University graduate course ME 322 Kinematic Synthesis of Mechanisms present the curvature properties of point trajectories in a planar moving body such as the coupler link of a four-bar linkage. Update:  December 13, 2017. These notes have been revised to use the notation for the components of the pole acceleration and […]

Four-bar Linkage Synthesis, Two and Three Task Positions

These notes for the Stanford University course ME 322 Kinematic Synthesis of Mechanisms introduce the synthesis of a four-bar linkages that guide the coupler link through two and three specified task positions. More notes on Kinematic Synthesis    Also see my book Kinematic Synthesis of Mechanisms: a project based approach December 12, 2017.  These notes have been […]

Four-bar Linkage Analysis Notes

These notes have been prepared for the Stanford University graduate course ME 322 Kinematic Synthesis of Mechanisms.  This first set details the position and velocity analysis of a four-bar linkage.  Update:  December 12, 2017.  These notes have been revised to represent rotation matrices using boldfaced letters.  Remarkably, because 2×2 matrices commute this allows these matrices to be replaced by complex […]

Superluminal Chapter 3

More of R. W. Frost’s story following David Minor’s uneasy relationship with MitsukoTek Corporation as he is drawn into helping their wayward Satellite 9. (Read by scrolling the image or by using the page down and up buttons at the bottom.)

Superluminal Chapters 1-2

Superluminal, the new book by R. W. Frost, follows David Minor’s experiences with MitsukoTek Corporation’s troublesome Satellite 9.  It is the year 2035 and a new technology has swept the globe… (Read by scrolling the image or by using the page down and up buttons at the bottom.)

Flapping Wing Prototype

This is the manufacturing prototype for the flapping wing mechanism designed by Peter Wang and modeled by Benjamin Liu. The wing is 5cm in length to match the dimensions of a hummingbird. Here is a link to the youku.com video for our Chinese colleagues: Flapping Wing Prototype.

RPR-2SS Soil Conditioning Valve

This is an animation by Benjamin Liu of a spatial RPR-2SS six-bar linkage designed by Peter Wang for use on tunnel boring machines. This new device controls a valve that cleans and closes the soil conditioning port when the flow of soil lubricant is stopped. Soil conditioning provides lubricant to manage the cutting operation. This […]

Design Research in China: Beijing

This video shows the excellent research in design at universities in Beijing.  This is the final of five videos highlighting design research across China taken during a visit in September 2016.   For our colleagues in China, here is a link to a YouKu version.

2017 ASME Mechanisms and Robotics Conference

The program for the 2017 ASME Mechanisms and Robotics Conference is now on-line. You can access it at the link: ASME MR Conference The papers from the UCI Robotics and Automation Lab are: Design of Wearable Lower Leg Orthotic Based on Six-Bar Linkage by Shramana Ghosh; The Design and Manufacture of a Gear-Coupled Serial Chain […]