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Integrating Mechanical Testing Into The Design and Development Process
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Sector:
Event:
Aerospace Meeting
Language:
English
Abstract
The traditional role of the test lab has been to subject prototype products or components to carefully defined programs and evaluate acceptability from the viewpoint of vibration, stress, durability, life, noise, safety, reliability, performance, etc. If a product or component fails prescribed test criteria, it is sent back for rework by an appropriate designer. The test engineer seldom works with or meets the designer, except when “crisis” type problems are encountered.
Computer Aided Engineering (CAE) already has had a dramatic effect on drafting, design analysis, and testing groups. Mini-computer based testing systems, using modal analysis and animated mode shape test capabilities were introduced into the test lab in the early 1970's. Many new tools and techniques have become available since then. These later tools have a revolutionary impact on mechanical product development and the role of mechanical test engineers in the development process.
The examples sited here are associated with vehicles (1)* and rotating machinery (2), but the same approach has already been applied to other industries such as:
- Aerospace (3)
- Earthmoving equipment (4)
- Agricultural equipment (5)
- Machine tool (6)
- Plant equipment (7)
- Consumer products and other mechanical devices.
This paper addresses technical management, coordination, and application of new test technology within mechanical product development and attempts to answer the following questions:
- What is the current state-of-the-art approach to design and development of mechanical products?
- What techniques and tools are available to enable test engineers to contribute optimally to development programs for new mechanical products?
- What actions should a manager take to implement these new test capabilities into his or her company's mechanical product development process?
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Authors
Citation
Peterson, E., "Integrating Mechanical Testing Into The Design and Development Process," SAE Technical Paper 791077, 1979, https://doi.org/10.4271/791077.Also In
References
- Klosterman, A. L. “A Combined Experimental and Analytical Procedure for improving Automotive System Dynamics” SAE Paper 720093 Automotive Engineering Congress Detroit, Ml January 1972
- “Vibration in Industrial Plants” SDRC Newsletter 10 3 June 1979
- “Tailoring Structural Technology to Aerospace Needs” SDRC Newsletter 10 5 October 1979
- Martz, J.W. McClelland, W.A. Lemon, J.R. Kinsey, D.W. “Improved Techniques for Dynamic Analysis of Earthmoving Equipment,” SAE Paper 740425 SAE Paper, Earthmoving Industry Conference Peoria, IL April 1974
- Socie, D. Shifflet, G Berns, H “A Field Recording System with Application to Fatigue Analysis” ASTM Symposium on Service Fatigue Loads Monitoring Simulation and Analysis November 1977
- Maddux, K. Brown, D. Schierloh, F. “Design of Chatter Free Machine Tools,” ASME Paper 75-DET-5 Design Engineering Technical Conference Washington, DC September 1975
- Pfahler, R. “Failure Prevention Through Computerized Design Analysis of Mill Equipment,” AISE Spring 1977
- Martz, J. Smiley, R. Kormos, J. “Field Testing of Reference Vehicles as an Aid to the Design Analysis Process for Earthmoving Equipment” SAE Paper 780485 Earthmoving Industry Conference Peoria, IL 1978
- Wiley, G. Ashton, W. Van Benschoten, J. “Space Shuttle Main Propulsion Test System Resonance Survey by a Single Point Excitation Method” SAE Paper 781048 Aerospace Meeting San Diego, CA November 1978
- McClelland, W. Hay, J. Klosterman, A. “Frame Design Analysis under Complete Vehicle Boundary Conditions” SAE Paper 741142 Earthmoving Industry Conference Peoria, IL 1974
- McClelland, W. Klosterman, A. “Using NASTRAN for Dynamic Analysis of Vehicle Systems” SAE Paper, 740326 “Vehicle Structural Mechanics Conference Detroit, MI March 1974
- Martz, J. Peterson, E. Knobeloch, G. Angus, G. “Four Steps for Vehicle Ride Improvements” SAE Paper 790219 Congress and Expos Detroit, MI 1979
- Peterson, E. Klosterman, A. “Obtaining Good Results from an Experimental Modal Survey” Journal of the Society of Environmental Engineers London, England