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Colin Gordon Associates is a consulting firm specializing in acoustics, noise, and vibration control. The firm’s activities encompass a wide range of project areas. Some of these are highlighted below.


Facilities with Vibration and Noise Sensitive Equipment

Instruments and tools that are particularly sensitive to noise and vibration have been developed in recent years and require facilities that provide extremely low noise and vibration environments. CGA has a unique international reputation for the expertise offered in the design of low-vibration environments for the microelectronics and biopharmaceutical industries as well as the medical, university and research communities. Our input to projects generally encompasses all phases of the design process, including site selection, programming and concept design, design development, final documentation, construction administration and final evaluation.

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Architectural Acoustics, Noise and Vibration Control

The science of architectural acoustics, noise and vibration control embraces the design of non-industrial indoor environments to achieve acceptable levels of privacy, communication and comfort for the building occupants. Acoustical issues include room shaping, reverberation control and separation of spaces. Noise issues encompass design of the building envelope, placement and isolation of mechanical spaces in relation to noise- sensitive occupancies and noise control for ventilation, exhaust and air conditioning systems. Vibration issues include the control of walker-induced vibration and vibration isolation of major mechanical systems.

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Industrial and Commercial Noise and Vibration Control

Industrial noise and vibration arise from a wide range of activities, processes and machines. It is not necessarily confined to the workplace and often contributes to environmental noise in areas surrounding the industrial plant. This noise can cause hearing damage, interfere with communications, increase worker stress and reduce productivity. CGA is familiar with OSHA and other standards used to set limits on industrial noise and vibration, and we are able to undertake detailed measurements to assess noise and vibration exposure and advise on methods of noise and vibration control.

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Vibration, Noise, and EMI Measurement

Accurate and sophisticated measurements are an essential component of the services offered by CGA. Obtaining accurate data is often the most basic requirement in analyzing complex noise, vibration and electromagnetic interference (EMI) problems. CGA has an extensive collection of instrumentation and experience in collecting vibration, noise and EMI data in operating facilities and sites all over the world. These measurements include diagnostic studies, site surveys for future facilities, and characterization of noise and vibration propagation in the environment.

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Structural Dynamics

All structures vibrate, and those vibrations become a concern when their amplitudes become excessive, depending upon context. Structural dynamics addresses those issues pertaining to the structure itself that may lead to unwanted vibration, including both structural resistance to dynamic loads and propagation through a structure. CGA has the capabilities to analyze vibration in structures, and has many years of experience in structural dynamics analysis and mitigation. CGA’s tools include both finite element analysis (FEA) and experimental modal analysis (EMA). Structural dynamics projects have included vibration in buildings and other structures, pipelines, and instruments.

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Environmental Noise and Vibration Control

Environmental noise and vibration is a complex issue that can impact areas ranging from a single receiver location to entire communities. Often the culmination of a number of sources, it is important that these sources are identified and characterized. CGA has capabilities to conduct community noise monitoring studies as well as modeling of outdoor noise to evaluate the impact on the community from potential new sources such as industrial buildings or modifications to existing mechanical plants.

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Transportation Systems Noise and Vibration Control

Noise from transportation systems such as highways and railways affect large areas throughout the country, limiting land use and impacting areas of natural beauty and solitude such as state and national parks. These systems can also generate vibration that may interfere with activities in buildings housing vibration sensitive instruments such as laboratories or facilities used in the manufacturing of microelectronics components. CGA has been involved in many projects pertaining to exposure to these systems, and can provide design guidance for mitigation such as facility setback or the placement of roadside sound barriers.

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