Workshops & Tutorials

IDETC-CIE WORKSHOPS (Monday, August 16th from 1:00 PM – 5:00 PM ET)

The following (6) workshops will be offered concurrently the day before the official conference kick-off. These workshops are included with your conference registration.

Description: Recent developments in the 2D sketcher capabilities of modern CAD systems allow the creation of dynamic or moveable constrained geometry. Dynamic geometry is a new tool for the design of planar linkages and provides the opportunity for new synthesis methods. One method exploiting the advantages of this new tool is Pole and Rotation angle Constraints (PRC). It has the intuitive, visual advantages of graphical methods and the fast and accurate advantages of analytical methods. PRC provides a single approach for every planar four bar linkage synthesis problem that is not over-constrained. Since CAD tools are commonplace in academia and industry there is direct carryover from education to industrial practice. Learn this breakthrough method to solve linkage synthesis problems faster and minimize trial and error since you can easily see thousands of possible solutions. The class will focus on the exact synthesis of four bar linkages for rigid body guidance, point path, function generation and any combination of these tasks.

Description: The goal of the workshop on Digital Presence is to provide a professional development experience and opportunity for community and networking within the Design Engineering Division (DED) of ASME that supports and mentors underrepresented groups. The workshop is designed to provide graduate students and faculty members with professional development activities and to give them the opportunity to make connections with an international network of supportive researchers in their field. This workshop will be the twelfth annual workshop event of the Broadening Participation Committee of the ASME DED.

The focus of this 3-4 hour workshop is to help attendees establish or improve their digital presence. Digital presence refers to how people appear online and includes content that can be personally controlled, such as social media profiles and personal websites, and content that is not personally controlled, such as online reviews. Attendees will learn how to improve their discoverability online and how to set up and tailor their online profiles to better showcase their personality, research interests, publications, and other achievements. Special attention will be given to LinkedIn, Google Scholar, and ORCID profiles, but the information provided can also apply to other social media and personally managed websites for professional purposes.

Description: The workshop is intended to those interested in applications of sustainability and optimization of engineering products and processes. The theory and practice of sustainability indicators are interlinked to optimization principles. The challenges of sustainable engineering are multidisciplinary in nature and no simple engineering discipline is capable of dealing with. Therefore, the topics are presented with examples from all fields of engineering including, Mechanical, Electrical, Civil, and Chemical.

It is hoped these examples with theory and practice will encourage inclusion of sustainability principles along with optimization in all field of engineering. The topics presented also include the environment, sustainability, and engineering interlinkage for sustainable development of the human society (may be all on the planet earth). While doing some research work on these topics it appeared to me that solutions of some of the challenges are not only multidisciplinary but transdisciplinary and show how much we need to integrate sustainability and optimization for engineering products and processes.

Description: This workshop will demonstrate a state-of-the-art web-based app called MotionGen Pro for designing and simulating planar for virtual prototyping of the robot motions and structures. This app is an outcome of several years of NSF funded research in bringing together rigid body kinematics and machine learning. The app is being used in Freshman Design Innovation, undergraduate and graduate Kinematics class at Stony Brook University and at several other colleges and universities.

Workshop Outline

• Motivation and Background
• Introduction to MotionGen Pro
• Design and Simulate Planar Linkages: Demo
• Participant Exercise 1: Design a "mecha-vtar"
• Participant Exercise 2: Design a Straight-line Mechanism
• Participant Exercise 3: Design a Walking Robot Mechanism
• Participant Exercise 4: Design an Elliptical Machine

Description: Prevalent topology optimization techniques produce organic designs that are highly efficient but often difficult to manufacture. This difficulty arises from the field representations of the structure employed by these methods, which provide great freedom and readily accommodate shape and topological changes but at the same time make it very difficult to incorporate high-level geometric requirements. To address these shortcomings, several topology optimization methods have been formulated in the last decade to design structures made exclusively of geometric components with high-level parameterizations such as those used in solid modeling systems. These methods can render structures made exclusively of, e.g., stock material such as bars and plates or B-spline-shaped holes.

In this tutorial we will review the main techniques used by these methods, with a particular emphasis on the formulations to map the high-level geometric features onto a fixed finite element mesh for analysis. The tutorial will also discuss and demonstrate applications of topology optimization with geometric components. Particular emphasis will be given to the geometry projection method, one of the leading techniques in this family of approaches. Participants will use a freely available geometry projection code to examine the inner workings of the geometry projection method and perform some numerical experiments.

Description: The workshop introduces participants to how to retrieve 3D models accurately automatically without human perception and presents algorithms for designing the feature-based models for additive manufacturing (AM). We present the rationale of precisely search and retrieve 3D models in the current manufacturing industry, the importance of converting the current design of AM model formats to the feature-based models, and the solutions for both. Participants receive handouts describing reasoning, techniques for searching and designing new techniques. The workshop proceeds in three sessions:

• the present significance of retrieval and design automation
• demonstrating the algorithms/techniques
• providing the demo of automatic retrieval and design tools for practice

The search and retrieval technique transforms the 3D objects to a 1D representation and generates significant signatures of individuals to enable a search function. The signatures do not require manual ad-justification, registration, and partial/full search of the targeted model. The success search will return a match index for sequentially sequencing the returned objects. The design for AM for light-weighting the geometry is typically STL format that is not editable. The models contain only triangle information, without the surface, plane, nor feature information. Thus, the direct fabrication of these models cannot assure the print qualities in terms of shape, GD&T, and mechanical properties. The transform from the design for AM models to the parametric feature-based models is urgently needed. The workshop will provide the automatic modeling method for converting such models into parametric formats.