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Upcoming Events
Updated: 29 min 46 sec ago

Civil and Environmental Engineering Department Seminar, Feb 27

29 min 46 sec ago
Wind effects on flexible structures such as high-rise buildings and long-span bridges, governed by the Navier-Stokes equations, are not adequately represented by a conventional linear analysis framework. This shortcoming is becoming significant for contemporary structures, as their increasing heights/spans and constantly changing cross-sections make them more sensitive to nonlinear and unsteady aerodynamic load effects. This presentation focuses on developing a unified analysis framework for nonlinear aerodynamics in the context of cable-supported bridges by responding to the following key questions: (1) What are the typical nonlinear behaviors observed from wind-tunnel studies and full-scale observations? (2) What are the effects of nonlinearity and unsteadiness on bridge aerodynamics? (3) What is the ability of existing nonlinear models to capture nonlinear and unsteady effects? (4) Is it possible to go beyond the current nonlinear models, and establish more effective nonlinear unsteady low-dimensional modeling techniques? To this end, the higher-order spectral scheme is utilized to identify aerodynamic nonlinearity. The effects of nonlinearity and unsteadiness on bridge aerodynamics are evaluated by comparing aerodynamic responses derived from various semi-empirical models. Current models set in the conventional analysis framework are reviewed to understand their ability in simulating nonlinear unsteady aerodynamics. Several advanced low-dimensional modeling techniques, characterized by different levels of analysis of nonlinearity and unsteadiness, are then proposed. These include an artificial-neural-network approach, a nonlinear moving-average model, and a Volterra series-based model. The fidelity with which the proposed approaches are able to simulate nonlinear bridge aerodynamics is verified through data based on wind-tunnel tests or computational fluid dynamics.

Design Field Notes: Avery Trufelman, Feb 28

29 min 46 sec ago
About Design Field Notes:
Each informal talk in this pop-up series brings a design practitioner to a Jacobs Hall teaching studio to share ideas, projects, and practices.

About this talk:
Avery Trufelman is a producer at 99% Invisible, the highly acclaimed podcast about "the thought that goes into the things we don’t think about — the unnoticed architecture and design that shape our world." With 150 million downloads, 99% Invisible is one of the most popular podcasts on iTunes.

California Transportation Planning Conference, Mar 3-5

29 min 46 sec ago
The California Department of Transportation (Caltrans), in partnership with the Institute of Transportation Studies (ITS) at University of California, Berkeley present the: 2017 California Transportation Planning Conference, Partnering for Sustainable Transportation: Meeting the Challenge Now and Into the Future.

This three-day conference will provide attendees the opportunity to interact with transportation practitioners and decision-makers, exchange ideas and learn about emerging technologies and advancements in transportation planning from national, state, and local experts. The conference will focus on themes around sustainability and how we can partner to meet the challenges facing us now and into the future as required by California legislation and influenced by funding constraints.

Jacobs Design Conversations: Barry Katz, Mar 3

29 min 46 sec ago
About Jacobs Design Conversations:
Each semester, the Jacobs Institute for Design Innovation invites leading designers and makers to Berkeley to speak as part of the Jacobs Design Conversations series. Connecting diverse perspectives under one roof, Jacobs Design Conversations are spaces for dialogue on a broad spectrum of innovations and ideas.

As part of this series, Barry Katz will share his insights with Berkeley's design innovation community on Friday, March 3. The talk will take place at Jacobs Hall, the Jacobs Institute's hub for hands-on learning and making.

About Barry Katz:
Barry Katz is Consulting Professor in the Design Group, Department of Mechanical Engineering, at Stanford University and Professor of Industrial and Interaction Design at the California College of the Arts in San Francisco. In addition to his academic affiliations, Barry is Fellow at IDEO, Inc., the Silicon Valley-based design and innovation consultancy, where he conducts front-end research in support of IDEO project work, and at the University of Tokyo i-School. He consults with governments, companies, and academic institutions worldwide on issues pertaining to design and innovation.

Barry is the author of six books, including "Change By Design" with Tim Brown (Harper Collins, 2009), which explores the nature of design thinking as a strategy of business, and "NONOBJECT," with Branko Lukic (MIT, 2010), a conceptual exploration of “the space between person and product.” A new book, "Make it New: The History of Silicon Valley Design," was published by the MIT Press in fall 2015.

Civil and Environmental Engineering Department Seminar, Feb 24

29 min 46 sec ago
Recent years have seen a concurrent development of new sensor technologies and high‐fidelity modeling capabilities. At the junction of these two topics lies an opportunity for real‐time system monitoring and damage assessment of structures. In this context, on‐line Bayesian parameter identification and filtering methods, which rely on measurements to monitor the dynamic states and parameters representing a system, provide a very accurate and efficient tool for damage detection and characterization.
Such Bayesian inference methods are very attractive for damage identification and characterization due to their ability to take into account uncertainties in the system and measurements, as well as stochastic input excitations, and yield results in a probabilistic format thus enabling more accurate damage assessment of civil structures. These methods can also handle ill‐conditioned problems, where not all parameters can be learnt from the available noisy data, a problem which will surely arise when considering large dimensional complex systems.
A major challenge regarding on‐line Bayesian filtering algorithms lies in achieving good accuracy for large
dimensional nonlinear, potentially non‐Gaussian, systems. Using algorithmic enhancements of filtering techniques, mainly based on innovative ways to reduce the dimensionality of the problem at hand, one can obtain a good trade‐off between accuracy and computational complexity of the learning algorithms, a key point crucial to enabling fast decision‐making procedures.
These methods can potentially find a wider variety of applications; Bayesian model class selection offers
possibilities for improved modeling of structures based on available measurements, state filtering offers capabilities in monitoring of pollution emissions, traffic and beyond.

Superpave Mix Design for Local Agencies, Feb 21-23

29 min 46 sec ago
The SUPERPAVE mix design method is designed to replace the Hveem method. California Department of Transportation (Caltrans) started implementing the national SUPERPAVE standard for designing, specifying, and accepting pavement projects for all state jobs. The new mix design accounts for traffic loading and environmental conditions and includes a new method of evaluating the asphalt mixture. This course provides an overview of the SUPERPAVE mix design for local agencies and adjustments needed to start transitioning to the new mix design.

NSF CAREER Workshop, Feb 23

29 min 46 sec ago
The NSF Faculty Early Career Development (CAREER) Program is an NSF-wide activity that offers the National Science Foundation's most prestigious awards in support of junior faculty who exemplify the role of teacher-scholars through outstanding research, excellent education and the integration of education and research within the context of the mission of their organizations. The CAREER Award program requires an integration of research and education activities beyond the scope of a regular NSF grant.

BRDO offers a free NSF CAREER Award Workshop for early career faculty each spring. This workshop provides information on NSF CAREER requirements and includes concrete suggestions on how to write a competitive proposal. A panel discussion with current CAREER awardees is a centerpiece of the workshop. Lunch will be provided. Registration required.

Multicopter Dynamics and Control: Surviving the complete loss of multiple actuators and quickly generating trajectories, Feb 24

29 min 46 sec ago
Abstract: Flying robots, such as multicopters, are increasingly becoming part of our everyday lives, with current and future applications including personal transportation, delivery services, entertainment, and aerial sensing. These systems are expected to be safe and to have a high degree of autonomy. This talk will discuss the dynamics and control of multicopters, including some research results on trajectory generation for multicopters and fail-safe algorithms. We will also discuss the intersection of drones with personal transportation, and discuss some of the dominant scaling laws affecting the use of multicopters for personal transportation. Finally, we will present the application of a failsafe algorithm to a fleet of drones performing as part of a live theatre performance on New York's Broadway.

Bio: Mark W. Mueller joined the mechanical engineering department at UC Berkeley in September 2016. He completed his PhD studies, advised by Prof. Raffaello D'Andrea, at the Institute for Dynamic Systems and Control at the ETH Zurich at the end of 2015. He received a bachelors degree from the University of Pretoria, and a masters from the ETH Zurich in 2011, both in Mechanical Engineering.

Civil and Environmental Engineering Department Seminar, Feb 17

Sun, 02/19/2017 - 03:10
In recent years, advances in informatics and data science have assisted engineers to tackle structural dynamics problems. For example, health monitoring of structure and infrastructure systems has become a successful paradigm, as a valuable source of information for evaluating structural integrity and reliability throughout the lifecycle of structures as well as ensuring optimal maintenance planning and operation. Important development in sensor, computer and data analytics technologies made it possible to process big amount of data, to mine characteristic features, and to link those to the current structural conditions. In this presentation, I will talk about harnessing data analytics and computational models to tackle structural monitoring issues, through signal processing, identification, inference, computational modeling and uncertainty quantification. This talk will mainly discuss a typical topic on “combined data analytics and computational models for building monitoring” to show the basic concept. Deconvolution interferometry is employed for processing the vibration data, extracting wave propagation information and thus identifying structural characteristics. The extracted waves are then used for parameter uncertainty quantification of a computational model within the framework of hierarchical Bayesian inference. The presented methodologies can be used to process and mine big monitoring data for a real time operating system, and show a great potential in assessing structural integrity leading to a “smart structure management system.

Traffic Signal Diagnostics and Maintenance, Feb 16

Sun, 02/19/2017 - 03:10
This course covers the essential operational functions of traffic signals, starting with basic design principals and specifications writing techniques. Participants will see and touch each component inside a traffic signal cabinet, a thorough explanation of each component and how they work inside the cabinet. This critical knowledge of each component will provide the skillset necessary for proper diagnostic not just for technicians but also for engineers and signal maintenance managers. Participants will benefit from the instructor team's over sixty years of hands-on experience from both engineering and maintenance perspectives.

Research Tools Fair, Feb 17

Sun, 02/19/2017 - 03:10
Join us at the Research Tools Fair to learn about several products that the Libraries are piloting to help you be more effective in your research, writing, and citation management. The Fair will consist of brief product demos in the morning followed by drop-in Q&A with vendors in the afternoon. The Fair is open to all but geared toward faculty and students in the physical sciences & engineering. Please drop by for any part of the day that interests you. Coffee & soft drinks will be provided.

10:00-10:30: ShareLaTeX (via web conference)
10:30-11:00: Mendeley
11:00-11:30: Overleaf
11:30-12:00: AccessEngineering & DataVis Material Properties
12:00-12:30: Geofacets (tentative)

1:30-3:00: Drop-in Q&A with AccessEngineering, Engineering Village, Geofacets, Knovel, Mendeley, and Overleaf

Bending the Energy, Environmental, and Safety Curves Through Transportation Automation and Electrification, Feb 17

Sun, 02/19/2017 - 03:10
Abstract: The combination of vehicle automation and electrification has the potential to fundamentally change the transportation sector. Vehicle crashes, traffic congestion, air pollution, greenhouse gas emissions, energy consumption, and other negative externalities associated with driving could significantly diminish. However, travel may increase with these vehicles, pollution could be concentrated in new areas, and the life cycle impacts could become more important. Methods from engineering, economics, and policy sciences can inform stakeholders at the beginning of the transition to automation on maximizing the benefits and minimizing the challenges. This talk will present recent research on the implications of municipalities transitioning fleets to electric light-duty vehicles and eventual automation. The life cycle environmental, economic, and infrastructure outcomes will be presented, as well as the feasibility of coupling municipal vehicle travel with distributed solar energy. The talk will also highlight three recent research efforts in automation: the impact of automation on VMT from underserved populations, the social cost-effectiveness of early automation features, and the implications of automation on vehicle fuel economy testing and policy.

Bio: Costa Samaras is an assistant professor in the Department of Civil and Environmental Engineering at Carnegie Mellon. His research spans energy, climate change, automation, and defense analysis, and he teaches courses on energy analysis and climate adaptation for infrastructure. He has published studies examining electric and autonomous vehicles, infrastructure adaptation, and energy transitions. Costa directs the Carnegie Mellon Center for Engineering and Resilience for Climate Adaptation, and is an affiliated faculty member in the Traffic21 Research Center, the Scott Institute for Energy Innovation, and the Energy Science, Technology and Policy Program. He is also an Adjunct Senior Researcher at the RAND Corporation. Costa received a joint Ph.D. in Civil and Environmental Engineering and Engineering and Public Policy and from Carnegie Mellon, a M.P.A. in Public Policy from New York University, and a B.S. from Bucknell University.

Innovative Thinking in the Development of Seismic Design Concepts, Feb 6

Sun, 02/12/2017 - 03:10
The talk will explore the thinking process that went into the development of eight different seismic design concepts including propped shear walls, story isolation, friction dampers, corrugated metal wall sheathing, post-tensioned concrete shear walls, mast frames, isolation bearings, and corrugated metal wall sheathing (round two).

Asphalt Pavement Materials, Design, Construction and Maintenance, Feb 7-9

Sun, 02/12/2017 - 03:10
This three-day course is aimed at covering the full range of topics related to asphalt concrete pavements from materials and mix design to construction, maintenance, and rehabilitation. Asphalt concrete pavements are a vital part of an agency's assets and constitute about 90% of the local streets in California. The numerous topics in this class will be presented in sufficient detail to assist the local agency engineer when dealing with contractors, consultants, and specifications. It is expected that the information presented will be very useful to those that design, specify, and manage asphalt pavements.