2018-02-14
250
Exercise 1. Read and memorize using a dictionary:
| bending moment; displacement; linear deflection; shock absorption; spring; suspension; tension bar; torque; torsion; compression; |
Exercise 2. Answer the questions:
1) What happens in a vehicle suspension, when the wheel meets an obstacle?
2) What is the (ex)tension spring similar to?
3) What is the helical torsion spring similar to?
4) Where are non-metallic springs often applied?
Exercise 3. Match the left part with the right:
| 1. In a vehicle suspension, when the wheel meets an obstacle, the springing | a) deforms only after the load reaches a certain minimum value. |
| 2. The simplest spring is | b) also find some use. |
| 3. A tension spring can be wound with initial pre-load so that it | c) allows movement of the wheel over the obstacle. |
| 4. Springs utilising gas compressibility | d) the tension bar. |
Exercise 4. Open brackets choosing the right words:
Rotary springs (come/involve) torque and angular deflection. The simplest of these is the torsion bar in which loading is pure torque; its analysis is (compressed/based) upon the simple torsion equation. Torsion bars are stiff compared to other forms of rotary spring, however they do(have/load) many practical applications such as in vehicle suspensions.
