改进推土机作业方面的重要突破,是在推土机挖土时使推土机铲刀以约0.2时的振幅低频振动。由约瑟夫·M·布朗教授领导的密西西比州立大学机械工程系研究组的试验指出,铲刀的振动提高了生产率20～25%。改进推土机以实现铲刀振动是不困难的,或者说是花钱不多而有效的。此外,研究者相信,由于技术的发展,推土机的挖掘能力可以提高一倍。 An important breakthrough in improving bulldozer operations is to cause the bulldozer blade to vibrate at a low amplitude of about 0.2 am when digging a bulldozer. Tests conducted by the Mississippi State University Department of Mechanical Engineering, led by Professor Joseph M. Brown, point out that blade vibration increases productivity by 20-25%. Improving bulldozers to achieve blade vibration is not difficult, or to spend a small but effective. In addition, researchers believe bulldozers can double their digging capacity due to technological advances.