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Research Directions in Computational Mechanics (1991) / Chapter Skim
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7 Structures and Structural Dynamics
Pages 79-83

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From page 79...
... The new advances are manifested by the development of sophisticated computational models that simulate mechanical, thermal, and electromagnetic responses of structures; efficient discretization techniques (viz., improved finite element, boundary element, and hybrid/analytical numerical methods) ; stochastic-based modeling; and computational strategies and numerical algorithms for nonlinear static, dynamic, and fracture problems.
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From page 80...
... that can be adapted to CSMD. Primary and Secondary Pacing Items The primary pacing items in CSMD include detailed modeling of complex structures, prediction and analysis of failure of structural components made of new materials, effective computational strategies for large systems, computational methods for articulated dynamic systems, and quality assessment and control of numerical simulations.
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From page 81...
... These new tools have high application potential in many facets of CSMD, including preparation of a discrete model from high-level specification in symbolic form of structural characteristics and qualitative description of structural response characteristics using computer vision techniques to recognize them (see Appendix 4~. Predictions of Failure of Structural Components Practical numerical techniques are needed for predicting the failure initiation and propagation in structural components made of new high-performance materials within terms of measurable and controllable parameters.
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From page 82...
... Despite the breadth of these applications and their importance in many fields of engineering and applied science, dynamic simulation methods to predict motion and structural deformation of the components of such systems have lagged significantly behind the much better developed field of finite element structural analysis. While considerable progress has recently been made in computational methods for articulated structural dynamics (often called multibody dynamics or flexible multibody dynamics)
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From page 83...
... Only then can effective performance and failure analysis be carried out prior to fabrication and hardware testing. Another major objective of articulated structural dynamics is to provide accurate and effective simulation of dynamics and control of hydraulic subsystems that are used to impart desired motion to the system.
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Key Terms

  • pacing items
  • secondary pacing
  • finite element
  • structural components
  • structural dynamics

  • failure initiation
  • numerical techniques
  • space structures
  • computer vision
  • structural response

  • articulated structures
  • angular velocity
  • response characteristics
  • articulated structural
  • life prediction

  • hierarchical modeling
  • multibody dynamics
  • adaptive refinement
  • computational strategies
  • inertial reference

  • primary pacing
  • extremely flexible
  • reference frame
  • involve coupled
  • impart desired

  • computing environments
  • controllable parameters
  • desired motion
  • qualitative description
  • manufacturing equipment


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