3. Vehicle Structures

Chassis Engineering — Quiz

Test your understanding of chassis engineering with 5 practice questions.

Practice Questions

Question 1

Which chassis frame design features a central longitudinal tube that provides the primary bending resistance and to which suspension and body components attach?

Question 2

Calculate the second moment of area $I$ for a chassis rail with a rectangular cross-section of width $b=0.10\,\mathrm{m}$ and height $h=0.20\,\mathrm{m}$ using $I=\tfrac{b h^{3}}{12}$. What is $I$?

Question 3

A vehicle body-in-white mass of $600\,\mathrm{kg}$ is supported by four identical mounts. To achieve a body natural frequency of $10\,\mathrm{Hz}$, what stiffness $k$ must each mount have? Use $f_{n}=\tfrac{1}{2\pi}\sqrt{\tfrac{4k}{m}}$.

Question 4

Why is triangulation used in subframe and cross-member design of automotive chassis?

Question 5

To effectively isolate engine vibrations, engine mount natural frequency should be set ___ relative to the dominant engine firing frequency.