VIBRATION, DAMAGE, AND DESIGN,
Abstract
In a structural design problem, it is desirable first to establish the nature and magnitude of the loads, second to determine the capacity of likely materials to withstand these loads, and third to arrange the geometry of the structure so that the materials used do not fail under the loads during the intended life of the structure. In the ordinary case of static loads or fixed-cycle repetitive loads this design process is reasonably straight-forward, with the necessary data either already available or easily determinable. When the loads are caused by transportation or flight, however, the problem takes on a different character. The difference in character arises from the fact that in addition to the statistical variation in material properties there is not another statistical variation in the loads. While it is possible to deal with 'minimum' materials properties and 'equivalent' static loads with complacency about the resulting design, this is hardly a rational process and by no means insures a safe or economical design. The problems of design for a slowly varying load and design for random vibration are considered.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1955
- Accession Number
- AD0622289
Entities
People
- Robert M. Mains
Organizations
- Johns Hopkins University Applied Physics Laboratory