| 带锯条安全容许高张紧力计算法的研讨 |
| |
| 引用本文： | 王华滨.带锯条安全容许高张紧力计算法的研讨[J].林业科学,1990,26(1):67-73. |
| |
| 作者姓名： | 王华滨 |
| |
| 作者单位： | 东北林业大学 |
| |
| 摘 要： | 本文根据锯条不对称弯曲(或脉动)循环交变应力的持久极限,提出带锯条安全容许的高张紧力公式,并与日本木材工业手册(1982)的张紧力计算式和瑞典Kockums集团公司的高张紧力上限线作了对比。分析研究证明,作用于带锯条并转化成等效脉动循环容许的最大变应力大约为250N/mm~2。要提高张紧应力,必须使用较薄的锯条,以降低弯曲应力来补偿张紧应力的提高,保持总应力状态大致不变。
|
| 关 键 词： | 锯条 容许高张紧力 计算 |
A DISCUSSION ON A METHOD FOR CALCULATING SAFETY AND ALLOWABLE HIGH-STRAIN FORMULA OF BAND SAW-BLADE |
| |
| Wang Huabin.A DISCUSSION ON A METHOD FOR CALCULATING SAFETY AND ALLOWABLE HIGH-STRAIN FORMULA OF BAND SAW-BLADE[J].Scientia Silvae Sinicae,1990,26(1):67-73. |
| |
| Authors: | Wang Huabin |
| |
| Institution: | Northeast Forestry University |
| |
| Abstract: | A Safety and allowable high-strain formula for band Saw-blades is proposed, according to the endurance limit of alternating stress in unsymmetrical bending (or pulsating) circulation, and comparisons with those formula given in the Japanese Hand-Book of wood Industry(1982)and with high-strain upper limit curve in Kockums Group (sweden) were also observed. The investigation revealed that an allowable maximum fluctuating stress, converted to iso-effective pulsating circulation, acting on the sawblade, is approximately 250N/mm~2. when the tensile stress increases, it is necessary to use a thinner saw-blade in order to decrease the bending stress to compensate the increased tensile stress rendering the total stress maintaining approximacely unchanged. |
| |
| Keywords: | Safety and allowable high-strain Endurance limit of alternating stress Unsymmerical bending circulation of saw-blade Iso-effective pulsating circulation |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
