机械工程及自动化精品毕业设计ZL05微型轮式装载机总体设计 .pdfVIP

Aspectstoimprovecabincomfortofwheelloadersand

excavatorsaccordingtooperators

Abstract

eircabin‘‘

dimensions,ingress/egress),view,reliability,andclimatecontrol.

Keywords:Cabincomfort;Operators’opinion;Earthmovingequipment.

1.Introduction

operatorsofearthmovingequipmentoftenspendlonghoursintheirvehicle—some-

timesevenmorethan8haday—

—frequ-

entlyinawkwardpostures—exposuretowholebodyvibrations,andhandlingand

2000).

-

identifyaspectsthatneedimprovementinmachinedesign.

2.Method

2.1.Subjects

-

andexcavator.

2.2.Questionnaire

ears

comfortandtheiropinionofspecificpartsofthemachineonafour-pointscale(very

good,good,-

whataspectsarethemostimportanttoworkwellwiththemachine.

2.3.Dataanalysis

operatorsofoldermachinery(≥

machinery(〈4ye

-

bined(‘‘average/poor’’).

comfortandabouttheiropinionsaboutspecificpartsoftheirmachines.Chi-square

fewer-

forta

theseaspectsintocategoriesandcalculatedthepercentageresponses.

3.Results

3.1.Characteristicsofthepopulation

Boththewheelloaderoperators(meanage:36.5±9.4years)andtheexcavator

operators(meanage:36.3±

cedwithameanof12.3(±8.1)and13.4(±

and

50%oftheexcavatoroperators).

3.2.Evaluationofcurrentmachine

(4years

operatorsofolder