CW-EMD
Engineering Capabilities

The Engineering Department includes approximately 128 employees, of whom more than 75% are design and analytical engineers with an average of approximately 18 years experience in the mechanical, electrical, structural, metallurgical, and nuclear engineering disciplines. All department engineers possess degrees from accredited universities; approximately 40% possess advanced degrees and 20% hold professional engineering licenses. Design drafters, representing roughly 15% of the department, complement the engineering staff with over 18 years average experience in drafting, model generation, dimensioning and tolerancing, computer-aided design, and problem solving.

Electrical Engineering
For many of the CW-EMD rotating machinery applications, the electric design of highly reliable, low vibration, efficient motors and generators is paramount. CW-EMD has consequently developed a strong capability in the electric design of such machinery. This expertise includes finite element electromagnetic flux field modeling and performance prediction, insulation design and qualification, electrical performance test design and testing, overall coupled electro-mechanical system simulation modeling and analysis and manufacturing methods for implementing given electrical designs. Such capabilities include applications experience with a very wide class of electrical machines that include canned motor designs, induction and synchronous motors, and permanent magnet machines. The experience base includes designs that operate at a variety of frequencies and speeds as high as 9500 rpm.

Mechanical Engineering
CW-EMD has developed strong capabilities in mechanical design, analysis and test of rotating machinery to support the demanding needs of its customers. These capabilities include expertise in mechanics of materials, efficient feature design, rotordynamic design and analysis, bearing design, finite element structural and fatigue analysis, elastic-plastic analysis, vibration and noise analysis, and structural acoustics modeling and analysis. The Division's expertise is coupled with extensive real-world experience and feedback from manufacturing, test and field performance that drives realistic, highly reliable, robust product designs. CW-EMD has also developed a rigorous new product development process that provides a standardized map of the activities necessary to bring an idea from a concept to a real world product.

Hydraulic
CW-EMD has developed advanced capabilities in the design of high efficiency hydraulics centrifugal, mixed flow and axial flow to meet the pumping needs of its customers. Computational fluid dynamics tools are routinely used and specific methods have been developed to rapidly interpret and screen designs to reach optimum configurations in minimal time. In some cases, rapid prototyping is utilized for construction of impellers and diffusers for test purposes. A full range of test equipment and capabilities have been developed including air test screening, laser doppler velocimetry, acoustic hydrophone measurement and correlation techniques to evaluate and confirm performance of designs. A full complement of test loops exist to facilitate needed performance tests and evaluations. Specific techniques and methods have been developed to ensure that CW-EMD designs produce low noise for applications where this is a design criterion.

Power Electronics
CW-EMD has developed expertise in the design of innovative electronics for handling high power required for the operation and control of motor pumping and generator systems. The Division's staff includes designers of power conversion devices, voltage regulators, inverters, motor drives and control systems for power producing and power consuming machinery. CW-EMD's staff is known for innovative designs that achieve solutions to practical problems. The Division's power electronics capabilities include expertise in techniques for producing devices that have low electrical noise outputs and the demonstrated ability to model and simulate the behavior of complex systems for both steady state and transient conditions to ensure adequacy of designs prior to manufacture.