Olivier L. de Weck

Learn More
Particle Swarm Optimization (PSO) is a relatively recent heuristic search method whose mechanics are inspired by the swarming or collaborative behavior of biological populations. PSO is similar to the Genetic Algorithm (GA) in the sense that these two evolutionary heuristics are population-based search methods. In other words, PSO and the GA move from a set(More)
This paper examines the optimization of wireless sensor network layouts. To transmit their data to the base, all the sensors are required to be connected to a high-energy communication node, which serves as a relay from the ground to a satellite or to a high-altitude aircraft. The sensors are assumed to have a fixed communication and a fixed sensing range,(More)
Understanding how and why changes propagate during engineering design is critical because most products and systems emerge from predecessors and not through clean sheet design. This paper examines a large data set from industry including 41,500 change requests that were generated during the design of a complex sensor system spanning a period of 8 years. In(More)
Submitted to the Engineering Systems Division in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Engineering Systems at the Massachusetts Institute of Technology May 2005 2005 Tao Wang. All rights reserved. The author hereby grants to Massachusetts Institute of Technology permission to reproduce and to distribute publicly(More)
SUMMARY Uncertainty management is a particularly significant long-term foundational issue for planning, design and management of engineering systems. Its importance is far greater for engineering systems than it is in traditional engineering design. This is because engineering systems—such as automotive transport, electric power distribution, and the(More)
Designing a large-scale complex system, such as a city of the future, with a focus on sustainability requires a systematic approach toward integrated design of all subsystems. Domains such as buildings, transportation, energy, and water are all coupled. Designing each one in isolation can lead to suboptimality where sustainability is achieved in one aspect(More)
The aim of this research is to design an executable meta-language that supports system architects’ modeling process by automating certain model construction, manipulation and simulation tasks. This language specifically addresses the needs in systematically communicating architects’ intent with a wide range of stakeholders and to organize knowledge from(More)