Ride Response of a Model Vehicle to Harmonic Inputs.
Abstract
The document is concerned with vehicle response to harmonic inputs. The theories of mechanical vibrations and linear systems analysis are applied to one, two, and n-dimensional lumped-parameter systems to develop an orientation to the methods of obtaining theoretical system responses. Emphasis is placed on the system transfer function, the frequency and characteristic polynomials, and the steady-state response. Subsequently, the theoretical heave and pitch responses of the sprung mass of a vehicle traveling over a harmonic wave are obtained. The vehicle is represented as a four-dimensional lumped-parameter system and is subjected to a harmonic wave input of sufficient wavelength to allow continuous tire patch contact, but short enought to induce pitch motion. A one-eight scale model of some general vehicle is tested to determine its mass, inertia, damping, and spring parameters. The model is then run on a harmonic track (no roll motion imparted), its heave and pitch accelerations of the sprung mass center of gravity measured, and a correlation made with the theoretical results. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1971
- Accession Number
- AD0724704
Entities
People
- David Mayo Mcclellan
Organizations
- Stevens Institute of Technology