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Plans and Specifications

We have assisted many clients with the development of vibration specifications and limits, creation of test plans, and providing expertise to define and implement predictive maintenance or monitoring programs.  Some examples of our work in this area include:

Designing procedures, specifying sensors, and setting vibration limits for new or existing equipment.  Depending on the machine, the following standards may be used in this process:

ISO 10816 - A multi-volume set of standards for defining vibration severity in terms of externally measured overall amplitude considering size and power of the machine.  Generally used in absence of more specific acceptance criteria such as Hydraulic Institute (HI) or American Petroleum Institute (API).

ANSI/HI 9.6.4 - Specifies measurement methods and acceptance limits for vibration on various types and configurations of centrifugal and vertical turbine pumps

API 610 - Defines minimum analysis and vibration test requirements for centrifugal pumps operating in the petro-chemical industries

API 617 - Defines minimum analysis and vibration test requirements for axial compressors, integrally geared process centrifugal compressors and expander-compressors, as well as single shaft centrifugal compressors for use in the petro-chemical industries

Interpreting the requirements, designing any fixtures, and defining specific tests for military standard compliance:

MIL-STD-167 - Procedures and requirements for environmental and internally excited (primarily unbalance) vibration testing of shipboard equipment

MIL-STD-810G - Environmental test requirements for military equipment, with specific emphasis on Method 513.6 (Acceleration), Method 514.6 (Vibration), Method 515.6 (Acoustic Noise), and Method 516.6 (Shock)

Recommendations for the purchase of monitoring or predictive maintenance systems.  Note that while we are very familiar with this cost-effective way of maintaining critical equipment, we do not represent any specific vendor of these systems so that we can select the best hardware and software for a particular application.  These systems can involve one or more of the following technologies:

Route-based periodic data collection

Real-time permanently mounted sensors

Expert-system analysis of vibration and other types of data (oil, ultrasound, motor current)

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