液壓與氣壓傳動（第2版）

目 錄
第1 章 緒論 ·················································································································.1
1.1 液壓與氣壓傳動基本原理、組成和圖形符號 ·······························································.2
1.1.1 液壓與氣壓傳動基本原理 ·············································································.2
1.1.2 液壓與氣壓傳動系統(tǒng)的組成 ··········································································.4
1.1.3 液壓傳動圖形符號 ······················································································.5
1.2 液壓與氣壓傳動的優(yōu)缺點(diǎn) ·······················································································.6
1.2.1 液壓與氣壓傳動的優(yōu)點(diǎn) ················································································.6
1.2.2 液壓與氣壓傳動的缺點(diǎn) ················································································.6
1.3 液壓與氣壓傳動的應(yīng)用與發(fā)展 ·················································································.7
1.3.1 液壓與氣壓傳動的應(yīng)用 ················································································.7
1.3.2 液壓與氣壓傳動技術(shù)的發(fā)展 ··········································································.8
1.4 本書內(nèi)容安排 ······································································································.8
本章小結(jié) ···················································································································.9
思考與練習(xí) ················································································································.9
第2 章 液壓流體力學(xué) ·································································································.10
2.1 液體的主要物理性質(zhì) ···························································································.10
2.1.1 密度 ······································································································.10
2.1.2 壓縮性和膨脹性 ·······················································································.11
2.1.3 黏性 ······································································································.11
2.2 液體靜力學(xué) ·······································································································.13
2.2.1 液體所受的作用力 ····················································································.13
2.2.2 靜止液體微分方程的推導(dǎo) ···········································································.14
2.2.3 靜止液體微分方程的應(yīng)用 ···········································································.15
2.2.4 壓力的表示方法及單位 ··············································································.17
2.3 流動液體的力學(xué)基本規(guī)律 ·····················································································.18
2.3.1 經(jīng)典流體力學(xué)研究方法介紹 ········································································.18
2.3.2 流動液體力學(xué)的基本概念 ···········································································.19
2.3.3 流動液體的連續(xù)性方程 ··············································································.20
2.3.4 理想液體流動的微分方程 ···········································································.20
2.3.5 伯努利方程 ·····························································································.21
2.3.6 動量方程 ································································································.22
2.4 液體在流動中的能量損失 ·····················································································.24
2.4.1 流態(tài)實(shí)驗(yàn)和雷諾數(shù) ····················································································.24
2.4.2 液體圓管流動中的沿程壓力損失 ··································································.26
2.4.3 液體流動中的局部壓力損失 ········································································.29
2.4.4 管道系統(tǒng)中的總壓力損失和壓力效率 ····························································.30
2.5 液體在小孔和縫隙中的流動 ··················································································.32
2.5.1 液體在小孔中的流動 ·················································································.32
2.5.2 液體在縫隙中的流動 ·················································································.34
2.6 液壓卡緊問題 ·····················································