White Papers
Frequency Inspection of Brake System Components
Frequency inspection has long been a tool utilized by manufacturers of brake system components as a means of quality control. This is important to combat perceived defectiveness of a system that experiences issues, such as brake squeal, as well as to identify actual defects in the parts going out to…
Read MoreHooked on Vibration
Bob Coleman is Senior Applications Specialist for Signalysis. One of Bob’s most significant contributions came while working at the Johnson Space Center. Here, analytical finite element and experimental modal test methods were combined to analyze Shuttle Orbiter structural integrity after missions. For his contribution he was presented the Astronaut’s Silver…
Read MoreVibration Theory
A discussion of vibration theory usually begins with the analysis of a simple mass, spring and damper system. This is because once you analyze the vibration process for this system you can then apply the results to the most complicated vibrating structure. It will be shown later how complex structures…
Read MoreVibration Monitoring of Nanoscale Facilities
After an ever-descending scale of microelectronics, the industry has arrived at the nanoscale. Although not yet on a massive assembly line basis, extensive R&D as well as limited production activity is taking place at the nanoscalelevel. Read the Paper
Read MoreConcert Sound Level Monitoring
It’s no surprise that the number of noise complaints has risen with the recent growth in amphitheater construction. Throughout the country, communities are adopting tougher noise control ordinances requiring amphitheaters to either conform or be fined. But amphitheater management can remove the burden of proving conformance by adopting a successful…
Read MoreShock Response Spectrum Analysis
Shock Response Spectrum (SRS) analysis was under development as a standard data processing method in the early 1960’s. SRS was initially used by U.S. Department Of Defense engineering contractors and government R&D facilities. Dr. Irwin Vigness of the U.S. Navy Research Lab did much to establish the method as an…
Read MoreDynamic Defect Detection – Part II Implementation
In the amount of time it takes the average reader to read this article, more than a million bearings will have been manufactured for inclusion in more than 2000 components that will be integrated by tier-one suppliers into more than 1200 different products. Consider a manufacturer of alternators as a…
Read MoreDynamic Defect Detection – Part I Theory
Wide-ranging measurement methods are applied on the assembly lines of production plants across the country. The ever-rising bar of quality demands rejection of defective products at an assurance level not imagined in years past. The future of defect detection perhaps lies in the identification of assembly line units that are…
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